{"title":"More","description":null,"products":[{"product_id":"ne5532-vorverstarkerplatine-12-35v","title":"NE5532 preamplifier board - 2 channels, 12-35 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eOperational amplifier module with NE5532 IC for low-frequency amplification\u003c\/li\u003e \u003cli\u003eOperating voltage range of 12 to 35 V single supply\u003c\/li\u003e \u003cli\u003eTwo independent channels on one circuit board\u003c\/li\u003e \u003cli\u003eInputs for signal sources with high internal resistance\u003c\/li\u003e \u003cli\u003eLow-impedance outputs for subsequent stages\u003c\/li\u003e \u003cli\u003eSpace for external feedback and bias resistors\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe preamplifier with two NE5532 channels provides amplification in the audio and low-frequency range. Each channel is configured and operated independently, allowing flexible wiring in assemblies.\u003c\/p\u003e \u003cp\u003eThe NE5532 is a low-noise, wideband operational amplifier. The basic gain is set by externally mounted resistors; without feedback, the IC operates in output saturation. Typical gain values range from 10 to 100 times, depending on the resistor ratio.\u003c\/p\u003e \u003cp\u003eApplications include microphone preamplifiers in recording chains, instrument input circuits for synthesizers and effects units, and signal conditioning in analog measuring stations. The module is also suitable for rebuilding tube amplifiers or use as a preamplifier stage for power amplifiers.\u003c\/p\u003e \u003cp\u003eThe operating voltage must be between 12 and 35 V; a power supply is required. The IC circuit requires biasing, so the inputs must be dimensioned correctly; otherwise, the signal will become distorted. For high-impedance signal sources, an input impedance of at least 10 kOhm is required.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eOperation with voltages above 35 V will destroy the IC. This module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in household electrical circuits. Work on or near electrical installations must be carried out by qualified electricians; if you are unsure about the power supply or design, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x NE5532 12-35V preamplifier board\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997802209629,"sku":"F23107770","price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/ne5532-vorverstaerkerplatine-12-35v-funduino-8904515.png?v=1791493422"},{"product_id":"nodemcu-wifi-und-esp8266-0-96-zoll-oled","title":"NodeMCU ESP8266 microcontroller - 0.96-inch OLED, Wi-Fi, 3.3 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDevelopment board with integrated WiFi module and 0.96-inch OLED display\u003c\/li\u003e \u003cli\u003eESP8266 microcontroller with an 80 MHz clock frequency\u003c\/li\u003e \u003cli\u003e4 MB flash memory for code and data\u003c\/li\u003e \u003cli\u003e3.3 V operating voltage, USB port for power supply and programming\u003c\/li\u003e \u003cli\u003eI2C display with a resolution of 128 * 64 pixels\u003c\/li\u003e \u003cli\u003eDigital and analog inputs and outputs as well as PWM outputs\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis development board combines a WiFi-enabled microcontroller with an integrated display for locally displaying measured values or status messages. The ESP8266 connects directly to WiFi networks without requiring an additional module. The small OLED display with 128 * 64 pixels shows information without taking up much space.\u003c\/p\u003e \u003cp\u003eThe microcontroller operates with 3.3 V logic levels, not 5 V. Anyone wishing to connect other 5 V components needs a level shifter for the affected lines. Power is supplied via the USB port; a bench power supply is not required. The display communicates with the microcontroller via I2C and therefore uses only two signal lines. Multiple I2C modules can be operated on the same bus if their addresses are different.\u003c\/p\u003e \u003cp\u003eTypical applications include measurement data acquisition with local display, such as a small weather station that measures temperature and humidity, reports the values via WiFi, and displays them on the display at the same time. A door sensor with WiFi notification can also display its status locally. Simple data loggers for IoT projects or an air quality monitor can also be built.\u003c\/p\u003e \u003cp\u003eA USB-to-serial port is provided on the board for programming. Common development environments such as Arduino IDE or MicroPython support the ESP8266. The analog input is limited to a single 10-bit ADC. External ADC modules must be connected for multiple analog channels.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module operates with 3.3 V logic levels and is not designed for connection to household electrical circuits. It is intended exclusively for building prototypes and for testing and development purposes. Work on or immediately next to household electrical installations is reserved for qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1* Nodemcu WiFi and ESP8266 + 0.96-inch OLED\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997813875037,"sku":"F23107001","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/nodemcu-wifi-und-esp8266-096-zoll-oled-funduino-1725328.png?v=1791493531"},{"product_id":"attiny88-entwicklungsboard-kompatibel-zu-nano-r3","title":"ATtiny88 development board - Arduino Nano R3 compatible, 5 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDevelopment board with ATtiny88 microcontroller, pin-compatible with Arduino NANO R3\u003c\/li\u003e \u003cli\u003e32 kB flash memory, 2 kB RAM, 1 kB EEPROM\u003c\/li\u003e \u003cli\u003e8 MHz crystal oscillator for stable clocking\u003c\/li\u003e \u003cli\u003eUSB-to-serial converter (CH340G) for direct programming via standard USB cable\u003c\/li\u003e \u003cli\u003eAll 14 digital pins and 8 analog inputs on standard pin headers\u003c\/li\u003e \u003cli\u003eLow operating voltage of 5 V with onboard regulator\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis development board integrates an ATtiny88 microcontroller in the form factor of an Arduino NANO R3, allowing it to fit into existing setups without modifications. It can be plugged directly into breadboards or Arduino shields.\u003c\/p\u003e \u003cp\u003eThe memory comprises 32 kB of flash for program code, 2 kB of RAM for runtime data, and 1 kB of EEPROM for persistent values. The integrated CH340G converter enables programming via a standard USB cable without external adapters. The 8 MHz crystal ensures precise timing for real-time applications.\u003c\/p\u003e \u003cp\u003eWith 14 digital pins and eight analog inputs, the board covers typical sensor and actuator projects. It is powered via the USB port with 5 V and requires no external power supply. The ATtiny88's low power consumption makes it suitable for battery-powered applications, such as portable measuring instruments or wireless nodes.\u003c\/p\u003e \u003cp\u003eThe board can be programmed with the standard Arduino IDE once the ATtiny board definition has been installed. At the same time, all mechanical dimensions and pin positions match Arduino shields designed for the NANO R3. A computer USB port or a 5 V power supply is sufficient for operation.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThis board is intended exclusively for building prototypes and for testing and development purposes, and is not suitable for installation in the household mains circuit. It operates with 5 V logic levels, which require a level shifter when connected to 3.3 V systems. Work on or near electrical installations is reserved for qualified electricians; if anything is unclear before commissioning, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x ATtiny88 development board - compatible with NANO R3 (unsoldered, pin headers included)\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997814038877,"sku":"F23107087","price":4.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/attiny88-entwicklungsboard-kompatibel-zu-nano-r3-funduino-1124197.jpg?v=1791493985"},{"product_id":"stereo-mischerplatine-3-5-mm-2-eingange-4-ausgange","title":"3.5 mm stereo mixer board - 2 inputs, 4 outputs, passive","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStereo mixer for audio sources with 3.5 mm jack output\u003c\/li\u003e \u003cli\u003eTwo balanced inputs for line-level signal sources\u003c\/li\u003e \u003cli\u003eFour separate outputs for flexible routing options\u003c\/li\u003e \u003cli\u003ePassive circuitry without an external power supply\u003c\/li\u003e \u003cli\u003eCompact board size for installation in enclosures or mobile applications\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis stereo mixer board combines two audio sources via 3.5 mm jack plugs. The device operates on the summing principle, with both input signals mixed at adjustable levels. The passive design requires no external power supply, simplifying setup and operation.\u003c\/p\u003e \u003cp\u003eThe four separate outputs enable different configurations, parallel amplification of the summed signal, separate output by input, or individual routing to various audio devices. This makes the board suitable for flexible audio routing in projects where multiple devices are connected to the mixing stage.\u003c\/p\u003e \u003cp\u003eTypical applications include mobile sound systems, where two audio sources, such as a speech input and music playback, need to be mixed, as well as development projects for audio processing in which different level combinations are tested. The board also provides a practical solution for connecting multiple audio devices with limited inputs.\u003c\/p\u003e \u003cp\u003e3.5 mm jack plugs and suitable audio cables are required for operation. The board provides line-level signals and is not designed for direct connection to headphones or speaker amplifiers; instead, it serves as a mixing stage in the signal path. Users should check the input levels to prevent clipping.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThis module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for installation in household electrical circuits. If anything is unclear before commissioning, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Stereo mixer board 3.5 mm - 2 inputs, 4 outputs\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997814137181,"sku":"F23107708","price":23.52,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/stereo-mischerplatine-35-mm-2-eingaenge-4-ausgaenge-funduino-6984701.jpg?v=1791474009"},{"product_id":"lithiumbatterie-schutzplatine-lademodul-bms-1s-3-7-v-4a-fur-18650-lipo-li-ionen","title":"BMS 1S protection board - charging module for 3.7 V Li-ion, 3 A","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eProtection board for lithium-ion batteries with integrated charging function, 1-cell design\u003c\/li\u003e \u003cli\u003eVoltage range from 2.5 V to 4.2 V\u003c\/li\u003e \u003cli\u003eOvercharge protection, over-discharge protection and short-circuit protection\u003c\/li\u003e \u003cli\u003eCharging current up to 3 A\u003c\/li\u003e \u003cli\u003eIntegrated battery management system chip for automatic protection functions\u003c\/li\u003e \u003cli\u003eCompact board with solderable connections for direct cell connection\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis protection board with charging module controls the operation of single-cell lithium-ion batteries. The integrated battery management system (BMS) continuously monitors the cell voltage and interrupts charging and discharging processes when critical limits are reached to prevent damage or fires.\u003c\/p\u003e \u003cp\u003eThe charging circuit accepts inputs from 5 V to 12 V and charges the cell with up to 3 A. Overcharging is prevented at 4.2 V, while deep discharge below 2.5 V is blocked. In the event of a short circuit, the board immediately disconnects the cell. These automatic protection functions relieve the user of the need for constant monitoring.\u003c\/p\u003e \u003cp\u003eThe module is suitable for use in portable devices such as LED flashlights, wireless headphones or emergency power banks, where safe cell charging without external control electronics is required. It is also suitable for DIY projects with individual 18650 cells or similar formats, provided they are soldered directly to the board.\u003c\/p\u003e \u003cp\u003eOperation requires a compatible lithium-ion cell in 18650, 21700 or a similar format, as well as a power source between 5 V and 12 V for charging. The board does not provide a mechanical holder; soldering is required for assembly. If you have questions about integrating it into existing systems, consult a qualified electrician.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eLithium-ion cells can catch fire or explode if damaged, overcharged or short-circuited. This board is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in the household power circuit. Work on or near electrical installations must be carried out by qualified electricians; consult a qualified electrician before commissioning if anything is unclear.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Lithium battery protection board charging module BMS 1S 3.7 V 4A for 18650 LiPo lithium-ion\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997820068189,"sku":"F23108292","price":1.28,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/lithiumbatterie-schutzplatine-lademodul-bms-1s-37-v-4a-fuer-18650-lipo-li-ionen-funduino-9370893.png?v=1791494678"},{"product_id":"attiny85-mikrocontroller-mit-usb-schnittstelle","title":"ATtiny85 microcontroller - USB, 6 I\/O pins, 16 MHz","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ecompact microcontroller with 6 digital I\/O pins\u003c\/li\u003e \u003cli\u003eUSB power supply possible\u003c\/li\u003e \u003cli\u003ewith 8 KB memory\u003c\/li\u003e \u003cli\u003esupports SPI and I2C\u003c\/li\u003e \u003cli\u003ewith POWER and SIGNAL LEDs\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDigital I\/O pins: 6\u003c\/li\u003e \u003cli\u003eof which support PWM: 3\u003c\/li\u003e \u003cli\u003eAnalog inputs: 4\u003c\/li\u003e \u003cli\u003eClock speed: 16 MHz\u003c\/li\u003e \u003cli\u003eBits: 8\u003c\/li\u003e \u003cli\u003ePower supply: 3.3~5V\u003c\/li\u003e \u003cli\u003eSPI and I2C interface supported\u003c\/li\u003e \u003cli\u003ePower consumption (active): ~300uA \u003c\/li\u003e \u003cli\u003ePower consumption (sleep mode): ~0.1uA\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHelpful links:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.mouser.de\/datasheet\/2\/268\/atmel-2586-avr-8-bit-microcontroller-attiny25-atti-1180692.pdf\" target=\"_blank\" data-link-type=\"external\" data-type=\"linkpicker\"\u003eDatasheet (mouser.de) \u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.heise.de\/ct\/artikel\/Erste-Schritte-mit-den-Mikrocontrollern-ATtiny84-und-85-4399393.html\" target=\"_blank\" data-link-type=\"external\" data-type=\"linkpicker\"\u003eInstructions (heise.de)\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eScope of delivery:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1x ATTiny85 microcontroller with USB interface\u003c\/li\u003e \u003cli\u003e1x pin header\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997820100957,"sku":"F23107020","price":5.44,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/attiny85-mikrocontroller-mit-usb-schnittstelle-funduino-9464439.png?v=1791494673"},{"product_id":"step-up-spannungswandler-0-9v-zu-5v","title":"Step-up voltage converter - 0.9-5 V to 5 V, 600 mA","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eVoltage converter for generating a 5 V output voltage from inputs of 0.9 to 5 V\u003c\/li\u003e \u003cli\u003eOutput power up to 600 mA\u003c\/li\u003e \u003cli\u003eFixed-voltage regulator without external adjustment components\u003c\/li\u003e \u003cli\u003eInput voltage 0.9 to 5 V\u003c\/li\u003e \u003cli\u003eRegulated 5 V output voltage\u003c\/li\u003e \u003cli\u003eBoard connector for easy expansion\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eA step-up voltage converter generates the regulated 5 V that many sensors and microcontroller boards require from a low input voltage. The module uses a switching regulator topology to boost voltages from 0.9 V while keeping the output voltage constant. The input voltage can range from 0.9 to 5 V, while the output voltage remains buffered at 5 V regardless of the input voltage. The maximum available current is 600 mA, which is sufficient for many applications.\u003c\/p\u003e \u003cp\u003eThis module is used wherever weak power sources such as battery packs, energy harvesting systems, or low-voltage USB inputs need to supply power. A typical scenario is operating sensors or small controllers from two AA cells, whose voltage decreases over time but which need to provide a constant 5 V. The converter compensates for these fluctuations and reliably supplies the required operating voltage without requiring external capacitors or resistors to be calibrated.\u003c\/p\u003e \u003cp\u003eThe output voltage is internally calibrated to 5 V and cannot be changed. This module is not designed for loads exceeding 600 mA. Operation requires a regulated input voltage source and an input capacitor for interference suppression; details can be found in the module's circuit diagram. If the output load is less than 100 mA, the converter offers particularly stable operation.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThis module is not intended for installation in household electrical circuits. It is intended exclusively for building prototypes and for testing and development purposes. Work on or immediately next to electrical installations is reserved for qualified electricians; if you are unsure about the power supply or circuit, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Step-up voltage converter - 0.9V to 5V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997824131421,"sku":"F23108605","price":1.59,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/step-up-spannungswandler-09v-zu-5v-funduino-5741580.png?v=1791493591"},{"product_id":"tec1-12704-thermoelektrisches-peltierelement-48w-40x40mmx4mm","title":"TEC1-12704 Peltier element - 48 W, 12 V, 40 x 40 x 4 mm","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDepending on the polarity, Peltier elements generate heat or cold.\u003c\/li\u003e \u003cli\u003eThe element consists of semiconductor material embedded between ceramic plates.\u003c\/li\u003e \u003cli\u003eThese elements must be used together with a heat sink to prevent overheating and burns.\u003c\/li\u003e \u003cli\u003eChip model: TEC1–12704\u003c\/li\u003e \u003cli\u003eSize: 40 mm x 40 mm x 4 mm\u003c\/li\u003e \u003cli\u003ePower supply: \u003cspan\u003eDC12V\u003c\/span\u003e\n\u003c\/li\u003e \u003cli\u003eMaximum current: 4A\u003c\/li\u003e \u003cli\u003eCooling capacity: max. 48 W\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHelpful links:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ehttps:\/\/www.everredtronics.com\/thermoelectric.TEC1.html\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eScope of delivery: \u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1x TEC1-12704 Thermoelectric Peltier element\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997825179997,"sku":"F25110711","price":4.22,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/tec1-12704-thermoelektrisches-peltierelement-48w-40x40mmx4mm-funduino-2177110.png?v=1791494022"},{"product_id":"konstantstrom-konstantspannung-stepdown-xl4005-5a-dc-dc-einstellbar","title":"XL4005 step-down converter - 5-32 V to 0.8-30 V, adjustable up to 5 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSwitching regulator for direct current with constant-current and constant-voltage operating modes, 5 A maximum output current\u003c\/li\u003e \u003cli\u003eInput voltage range 5–32 V, continuously adjustable output voltage from 0.8–30 V\u003c\/li\u003e \u003cli\u003ePowerful high-frequency switching regulator for continuous and pulsed loads\u003c\/li\u003e \u003cli\u003eCompact modules with IC already installed, requiring only a few external components\u003c\/li\u003e \u003cli\u003eSmall circuit board with screw terminals for secure wiring\u003c\/li\u003e \u003cli\u003eEfficiency of over 90 percent in the typical operating range\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis switching regulator efficiently converts higher input voltages into stabilized lower output voltages and allows a choice between two operating modes. In constant-voltage mode, it supplies a regulated voltage that can be adjusted via a potentiometer or external signals; in constant-current mode, it limits the current flow to a fixed set value. With maximum output currents of up to 5 A, the module is suitable for more demanding applications than simple linear regulators.\u003c\/p\u003e \u003cp\u003eThe XL4005 switching regulator operates at a switching frequency of approximately 150 kHz and uses high-frequency pulse-width modulation for voltage regulation. This enables high efficiency and lower heat generation than linear circuits. Continuously adjusting the output voltage via a voltage-divider potentiometer provides complete control over the output level.\u003c\/p\u003e \u003cp\u003eThe module can be used for charging lithium-ion batteries in constant-current mode, for stabilized power supply to LED strips and light-emitting actuators, and for prototype power supplies for systems with variable or dynamic current requirements. The regulator can also be used as a laboratory-controlled current source for test measurements or as charging electronics in self-sufficient energy systems.\u003c\/p\u003e \u003cp\u003eOperation requires an input voltage source in the range of 5 to 32 V. The output current and output voltage are defined by external resistors or the potentiometer, respectively. The parameters to be set can be calculated from the XL4005 IC datasheet. Ensure correct polarity when assembling the circuit.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe input voltage must be between 5 and 32 V DC. Incorrect polarity will permanently damage the module. The device is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in the household power circuit. Work on or near electrical installations must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003ePackage contents\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Constant-current \/ constant-voltage step-down XL4005 5A DC-DC adjustable\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997825573213,"sku":"F23105924","price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/konstantstrom-konstantspannung-stepdown-xl4005-5a-dc-dc-einstellbar-funduino-8034504.png?v=1791493614"},{"product_id":"grove-breakoutboard-mt3620","title":"Grove breakout board for MT3620 Mini Dev Board","description":"\u003ch2\u003eGrove - MT3620 Breakout Board\u003c\/h2\u003e \u003cp\u003eThis board is an expansion breakout board specially developed for the MT3620 Mini Dev Board. Both the Azure Sphere MT3620 Development Kit and the MT3620 Mini Dev Board actively use Microsoft Azure Sphere technology.\u003c\/p\u003e \u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAzure Sphere\u003c\/strong\u003e is a general-purpose application platform with integrated communication and security features for devices connected to the Internet. It includes a secured, connected crossover microcontroller unit (MCU), a customized general-purpose Linux-based operating system (OS), and a cloud-based security service that provides continuous, renewable security.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eThe MT3620 Grove Breakout enables the quick integration of sensor modules - SeeedStudio Groves - into a rapid prototyping application based on the MT3620 Mini Dev Board.\u003c\/p\u003e \u003cp\u003eSince the Azure Sphere SDK does not yet support the ADC on the MT3620, this breakout serves as an interface between the MT3620 I2C port and an external ADC. It provides a way to read analog data from the analog port. In addition to this analog port, the breakout features UART, SPI, I2C, and GPIO ports.\u003c\/p\u003e \u003ch3\u003eFeatures:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e12-bit ADC with I2C-compatible serial interface\u003c\/li\u003e \u003cli\u003e8 Grove connectors\u003c\/li\u003e \u003cli\u003e2 x UART\u003c\/li\u003e \u003cli\u003e2 x I2C\u003c\/li\u003e \u003cli\u003e2 x Analog\u003c\/li\u003e \u003cli\u003e2 x GPIO\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical details:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDimensions: 57mm x 52mm x 10mm\u003c\/li\u003e \u003cli\u003eWeight: 38.6 g\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat is Grove?\u003c\/h3\u003e \u003cp\u003eGrove makes connecting and experimenting easier and simplifies the prototyping process. No jumpers or soldering are required. More than 300 Grove modules have been developed, covering a wide range of applications and meeting a variety of requirements. Not only the hardware but also the software is open source.\u003c\/p\u003e \u003ch3\u003ePackage contents:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e1 x Grove - Breakout (MT3620)\u003c\/li\u003e \u003cli\u003eGrove cable not included\u003c\/li\u003e \u003c\/ul\u003e","brand":"Seeedstudio","offers":[{"title":"Default Title","offer_id":65997827506525,"sku":"F23108198","price":21.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/grove-breakoutboard-mt3620-funduino-9188500.png?v=1791497810"},{"product_id":"dc-dc-usb-spannungsregler-5v-1v-bis-24v","title":"DC\/DC voltage regulator with USB - 1-24 V to 5 V, 3 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSwitching regulator converts input voltages from 1 to 24 V into a stable 5 V output voltage\u003c\/li\u003e \u003cli\u003eUSB output for direct device power supply\u003c\/li\u003e \u003cli\u003eCurrent capacity of up to 3 A\u003c\/li\u003e \u003cli\u003eInput voltage range of 1–24 V, including DC voltages from batteries and power supplies\u003c\/li\u003e \u003cli\u003eCompact design for integration into prototypes\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eA DC\/DC regulator with USB output converts DC voltages between 1 and 24 V into the standardized 5 V required by most mobile devices and development boards. The switching regulator design operates efficiently even with large voltage differences and significantly limits power consumption on the input side compared with linear regulators.\u003c\/p\u003e \u003cp\u003eThe regulator delivers up to 3 A on the 5 V side, making it suitable for boards with higher power requirements or multiple connected USB consumers simultaneously. Its wide input voltage range makes it flexible to use with vehicle batteries (12 V), 9 V plug-in power supplies, older industrial power sources, or for adapting the voltage between incompatible devices.\u003c\/p\u003e \u003cp\u003eTypical scenarios include mobile projects with variable power sources, operating USB devices from battery packs in mobile outdoor applications, or powering microcontroller boards from laboratory power supplies without a USB output. The module is also useful as an emergency solution when a board's integrated regulator is no longer sufficient.\u003c\/p\u003e \u003cp\u003eCurrent limiting protects the output load from overload. Operation requires only a DC voltage source within the specified range; no additional external components are needed. The USB cable or device is connected directly to the output.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eEnsure that the input voltage is correctly polarized; reverse polarity will damage the module. The regulator is not intended for connection to household power circuits or power supplies above 24 V and may only be used for prototyping, testing, and development purposes. In vehicle applications, the regulator must be protected against load surges and voltage spikes using appropriate protective measures.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x DC\/DC USB voltage regulator - 5V, 1V to 24V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997835043165,"sku":"F23108584","price":5.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/dcdc-usb-spannungsregler-5v-1v-bis-24v-funduino-8311385.png?v=1791494034"},{"product_id":"ly-031-dc12v-elektromagnetischer-riegel-schloss-fur-turen","title":"LY-031 door lock - electromagnetic bolt, 12 V, 350 N","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eElectromagnetic bolt with 12 V DC operation\u003c\/li\u003e \u003cli\u003eHolding force of 350 newtons, sufficient for metal doors and enclosures\u003c\/li\u003e \u003cli\u003eSolenoid-based locking mechanism, releasable without latching\u003c\/li\u003e \u003cli\u003eConnection via DC terminals; observe polarity\u003c\/li\u003e \u003cli\u003eCompact design with mounting holes\u003c\/li\u003e \u003cli\u003eFast switching times in the millisecond range\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eAn electromagnetic bolt with 12 V DC operation, designed for switching mechanical locks in doors, enclosures, and containers. When current flows, the solenoid generates a magnetic field that pulls in the bolt and releases the lock. The high holding force of 350 newtons enables use on heavy metal doors and sturdy protective enclosures, while the non-latching release ensures that unlocking is available at any time.\u003c\/p\u003e \u003cp\u003eControl is performed using a simple DC switching arrangement, with correct polarity being essential. With switching times in the millisecond range, the bolt can be integrated into automation processes, such as cycle-controlled door locking in laboratory equipment or electronically controlled access control in smaller systems. The module can also be used as a locking element in emergency shutdown circuits.\u003c\/p\u003e \u003cp\u003eOperation requires a power source with regulated 12 V DC that supplies sufficient current (see datasheet). A flyback diode to protect the control circuit from voltage spikes is recommended when the bolt is controlled via electronic switches (relay, transistor). A mechanical lock or additional locking mechanism may need to be installed separately.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eObserve the correct polarity when connecting to the power supply. This product is intended exclusively for building prototypes and for testing and development purposes and is not suitable for integration into structural security systems. If you are unsure about correct integration into existing systems, consult a qualified electrician before commissioning.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997836386653,"sku":"F23106934","price":6.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/ly-031-dc12v-elektromagnetischer-riegel-schloss-fuer-tueren-funduino-1163177.png?v=1791494057"},{"product_id":"hanrun-hr911105a-15-10-w5100-ethernet-shield","title":"W5100 Ethernet Shield - RJ45, 10 Mbit\/s, for Arduino","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eEthernet interface for microcontroller boards in the Arduino format\u003c\/li\u003e \u003cli\u003eW5100 chipset with full TCP\/IP implementation\u003c\/li\u003e \u003cli\u003eBuffer memory with 16 kB of RAM for data traffic\u003c\/li\u003e \u003cli\u003ePinout for Arduino Uno, Mega, and compatible boards\u003c\/li\u003e \u003cli\u003e10 Mbit\/s connection speed\u003c\/li\u003e \u003cli\u003eRJ45 connector with integrated transformer\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe expansion module adds an Ethernet interface to microcontrollers and enables communication with local networks or the Internet. The W5100 chipset handles all TCP\/IP processing, so the microcontroller only needs to issue a few commands. Data rates of up to 10 Mbit\/s are supported.\u003c\/p\u003e \u003cp\u003eThe SPI interface connects the module to the host system; several digital pins control chip-select and interrupt signals. A 16 kB buffer stores incoming and outgoing data. This memory is the limiting factor in applications involving larger volumes of data or several simultaneous connections. The RJ45 socket accepts a network cable and connects it to the chipset via an integrated transformer.\u003c\/p\u003e \u003cp\u003eThe module requires a stable 5 V power supply and fits directly onto Arduino boards with the standard connector format. The SPI pins must not be assigned twice. An existing local network with a DHCP server simplifies address assignment; static IP configuration is also possible. Larger volumes of data or streaming applications are limited by the buffer size.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for connection to household electrical circuits or production network segments containing confidential data. Work on or near electrical installations must be carried out by qualified electricians. If you are unsure about integrating the module into existing networks, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x\u0026nbsp;HanRun HR911105A 15\/10 W5100 Ethernet Shield\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997845004637,"sku":"F23106788","price":18.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/hanrun-hr911105a-1510-w5100-ethernet-shield-funduino-6851810.png?v=1791493191"},{"product_id":"lm317-linearer-spannungsregler-1-5a-4-2-40v","title":"LM317 Voltage Regulator - adjustable 1.2-37 V, 1.5 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eLinear voltage regulator with an output current of up to 1.5 A\u003c\/li\u003e \u003cli\u003eOutput voltage adjustable from 1.2 V to 37 V\u003c\/li\u003e \u003cli\u003eInput voltage of up to 40 V\u003c\/li\u003e \u003cli\u003eInternal current limiting and thermal protection\u003c\/li\u003e \u003cli\u003eThree connections, through-hole package for stripboards\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe LM317 is an adjustable linear voltage regulator that generates stable, lower output voltages from higher input voltages. With two external resistors, the output voltage can be adjusted from 1.2 V to 37 V, making it suitable for a wide range of applications.\u003c\/p\u003e \u003cp\u003eThe regulator operates on the principle of series regulation. An internal transistor limits the voltage drop between the input and output. In the event of an overload or heat buildup, the regulator switches off automatically to protect the component. Calibration is not required. However, the input voltage must be at least 2.5 V higher than the desired output voltage, and the full current delivery of 1.5 A is only possible if the heat loss is dissipated using a heat sink.\u003c\/p\u003e \u003cp\u003eTypical applications include laboratory power supplies with adjustable outputs, power supplies for analog circuits with different voltage requirements, and charging circuits for batteries with a defined charging current. The LM317 is also frequently used as a voltage reference in measurement chains.\u003c\/p\u003e \u003cp\u003eAn input voltage between 3 V and 40 V is required for operation. A heat sink is required when supplying higher currents or operating close to the maximum input voltage. Discharge resistors at the output protect the regulator when switching off inductive loads.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe LM317 is intended exclusively for building prototypes and for testing and development purposes. The component generates heat under load and may require a heat sink. Work on or near electrical installations must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x\u0026nbsp;LM317 - Linear voltage regulator, 1.5A, 4.2-40V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997846544733,"sku":"F23108683","price":1.89,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/lm317-linearer-spannungsregler-15a-42-40v-funduino-6093309.jpg?v=1791493750"},{"product_id":"mikrocontroller-board-rp2040-chip-1-8-5-5-v-mikrocontroller-rp2040","title":"Raspberry Pi Pico RP2040 - microcontroller, 40 pins, 1.8-5.5 V","description":"\u003ch2\u003eMicrocontroller Board RP2040 Chip - 1.8 - 5.5 V, Microcontroller, RP2040\u003c\/h2\u003e \u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eRP2040 chip, dual-core ARM Cortex-M0+\u003c\/li\u003e \u003cli\u003e40 pre-soldered pins - ready to use\u003c\/li\u003e \u003cli\u003eUSB programming, no external tools required\u003c\/li\u003e \u003cli\u003eC\/C++ or MicroPython - choose your language\u003c\/li\u003e \u003cli\u003e3-pin JTAG for debugging and programming\u003c\/li\u003e \u003cli\u003eMany digital interfaces onboard\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe Pico is a compact microcontroller with the RP2040 chip and features two ARM Cortex-M0+ cores. The 40 pins are already soldered - you only need to wire them to your sensors and actuators; no soldering required.\u003c\/p\u003e \u003cp\u003eThe Pico is programmed directly from your computer via the USB port. You can work in C\/C++ or use MicroPython, depending on what suits you best. The 3-pin JTAG connection helps with troubleshooting and debugging if things do not work right away.\u003c\/p\u003e \u003cp\u003eThose who develop more extensively with the Pico can use the JTAG port for more professional troubleshooting. For simple projects, the USB connection is perfectly sufficient - upload the code and you are done.\u003c\/p\u003e \u003ch3\u003eSystem Requirements\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eUSB port on the computer (for programming)\u003c\/li\u003e \u003cli\u003eC\/C++ toolchain or MicroPython environment on the PC\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eExample Applications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSensor data collection (temperature, light, motion, etc.) with digital or analog inputs\u003c\/li\u003e \u003cli\u003eControlling LEDs, motors, relays, and other actuators\u003c\/li\u003e \u003cli\u003ePrototyping IoT applications and embedded systems\u003c\/li\u003e \u003cli\u003eMeasurement data logging with locally stored or transmitted data\u003c\/li\u003e \u003cli\u003eRobotics and automated model projects\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Raspberry Pi Pico, RP2040 chip - pre-soldered (40 pins) \u0026amp; 3-pin JTAG connection\u003c\/li\u003e \u003c\/ul\u003e","brand":"Raspberry Pi","offers":[{"title":"Default Title","offer_id":65997860995421,"sku":"F23106408","price":6.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/mikrocontroller-board-rp2040-chip-18-55-v-mikrocontroller-rp2040-funduino-1054457.png?v=1791494241"},{"product_id":"vs1053-mp3-shield-fur-arduino-uno-r3","title":"VS1053 MP3 Shield - microSD slot, 3.5 mm jack, for Arduino UNO R3","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Arduino UNO R3 for playing and recording MP3 and audio files\u003c\/li\u003e \u003cli\u003eVS1053 decoder IC with integrated amplifier\u003c\/li\u003e \u003cli\u003eSPI interface for data transmission\u003c\/li\u003e \u003cli\u003e3.5 mm jack for headphones or external speakers\u003c\/li\u003e \u003cli\u003emicroSD card slot for storing audio files\u003c\/li\u003e \u003cli\u003eOn-board voltage regulator for stable power supply\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe module expands an Arduino UNO R3 with the ability to play and record digital audio content. It connects to the board via the SPI interface and uses pins 10 to 13, as well as additional GPIO lines for control signals. The integrated VS1053 decoder processes MP3, OGG, and WAV files; an on-board amplifier drives headphones directly or feeds an external audio system.\u003c\/p\u003e \u003cp\u003ePower is supplied via the Arduino itself, while a regulator integrated into the module provides the required voltage levels for the decoder. Audio files are read from a microSD card; the module supports cards up to 2 GB. Newer formats are often recognized, but this is not guaranteed. Recordings can be made via an audio input connection, provided that a microphone with a preamplifier is connected.\u003c\/p\u003e \u003cp\u003eAn Arduino UNO R3 or compatible board with accessible SPI pins and at least four additional digital inputs and outputs for control is required. A microSD card and audio files in a supported format must be purchased separately. The Arduino's memory (2 kB RAM) limits the buffer size and range of functions; complex media libraries can therefore only be implemented to a limited extent.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes. It is not designed for permanent integration into consumer devices. When operating with external power sources, ensure that the voltages do not exceed the permitted range and that the ground connections are linked. Before commissioning, a qualified electrician should check the power supply if there is any uncertainty about the required operating conditions.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x VS1053 MP3 Shield for Arduino UNO R3\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997862764893,"sku":"F23108448","price":10.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/vs1053-mp3-shield-fuer-arduino-uno-r3-funduino-5184892.png?v=1791494786"},{"product_id":"elektromagnet-dc12v-wf-p30-22-10kg","title":"Electromagnet WF-P30\/22 - 12 V, 10 kg holding force","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eElectromagnet for direct current, 12 V operating voltage\u003c\/li\u003e \u003cli\u003eHolding force of up to 10 kg with direct contact\u003c\/li\u003e \u003cli\u003eCoil with 22-ohm resistance\u003c\/li\u003e \u003cli\u003eConnector for secure power supply\u003c\/li\u003e \u003cli\u003eCompact design for mounting on metal\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis electromagnet operates on 12 volts of direct current and generates magnetic force through the flow of electricity. The holding magnet function uses the attraction between the coil and metal to secure or move components. Permanent-magnet systems are not required, and the force can be interrupted immediately by disconnecting the power.\u003c\/p\u003e \u003cp\u003eThe magnet holds directly to ferromagnetic surfaces such as iron or steel with a force of up to 10 kg. An air gap significantly reduces the force, so the magnet must lie flat against the target metal. The coil, with a resistance of 22 ohms, is designed for direct connection to 12-V power sources and cannot withstand higher voltages.\u003c\/p\u003e \u003cp\u003eTypical applications include cabinet locks and locking mechanisms, sorting systems for metal parts, lifting magnets, or electromechanical locks in machines. In automated manufacturing systems, the magnet can be controlled and switched on repeatedly using simple relays or transistors. For mobile applications such as electric trains or holding fixtures in workshops, the ability to interrupt the force immediately offers practical advantages over permanent magnets.\u003c\/p\u003e \u003cp\u003eThe power supply must provide 12 volts of direct current and be able to handle the coil's current draw; a power source with sufficient capacity is required. The magnet should not be pressed against mechanical force at its holding position, as its construction is dimensioned for the specified holding force. Operation without load monitoring may cause wear to the system components.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eElectromagnets generate strong magnetic fields that may interfere with implants such as pacemakers. The device is not intended for installation in household power circuits and is exclusively intended for building prototypes and for testing and development purposes. There is a risk of mechanical crushing and shearing caused by uncontrolled magnetic attraction, so operate only in unobstructed spaces. Before working on or near the power supply system, consult a qualified electrician before commissioning.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997864010077,"sku":"F23108546","price":5.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/elektromagnet-dc12v-wf-p3022-10kg-funduino-1968188.png?v=1791494237"},{"product_id":"dc-dc-stepdown-wandlermodul-fur-5v-mit-zwei-usb-anschlussen","title":"Step-down converter module 5 V - 6-32 V input, 2x USB-A at 3 A each","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eConverter module for regulating higher input voltages down to a stabilized 5 V\u003c\/li\u003e \u003cli\u003eTwo USB-A sockets for parallel or sequential device power supply\u003c\/li\u003e \u003cli\u003eInput voltage range: 6 to 32 V\u003c\/li\u003e \u003cli\u003eMaximum current per USB output: 3 A\u003c\/li\u003e \u003cli\u003eIntegrated protection circuit against short circuits and overloads\u003c\/li\u003e \u003cli\u003eCompact design with screw terminals for secure wiring\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eA step-down converter continuously reduces higher input voltages to a stable 5 V and distributes the power through two USB-A sockets. The module operates with input voltages between 6 and 32 V, making it suitable for various power sources, from individual lithium cells and automotive electrical systems to laboratory power supply outputs.\u003c\/p\u003e \u003cp\u003eEach USB port supplies up to 3 A and can be loaded independently. The integrated protection circuits automatically interrupt operation in the event of a short circuit or overload without damaging the module. Resetting is performed by briefly disconnecting the power supply.\u003c\/p\u003e \u003cp\u003eThe module is suitable for mobile project setups in which USB devices need to be powered from battery packs or 12 V car batteries, as well as for laboratory and prototype setups that need to provide stable 5 V to multiple USB devices. One specific scenario is powering multiple sensors or microcontroller boards from a single 24 V laboratory power source without having to purchase a separate power supply for each device.\u003c\/p\u003e \u003cp\u003eThe connection to the power source is made via screw terminals rather than plugs, so the wiring is resistant to vibration and impacts. A suitably rated cable is required for the connection; its cross-sectional area depends on the planned current draw. An electrician should check the wiring if it is unclear which conductor cross-sections are permissible for the currents being used.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThis module is not intended for installation in household mains circuits and is intended exclusively for building prototypes and for testing and development purposes. Work on or near electrical installations must be carried out by qualified electricians. If there is any uncertainty regarding the sizing or safety of the wiring, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x DC-DC converter module with two USB ports\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997864403293,"sku":"F23108224","price":2.32,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/dc-dc-stepdown-wandlermodul-fuer-5v-mit-zwei-usb-anschluessen-funduino-4048133.png?v=1791493281"},{"product_id":"max9814-mikrofonverstarker","title":"MAX9814 microphone amplifier - AGC, 2.7-5.5 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMicrophone amplifier for electret condenser microphones\u003c\/li\u003e \u003cli\u003eOperating voltage 2.7 to 5.5 V\u003c\/li\u003e \u003cli\u003eOutput signal normalized to 0 to 2.7 V\u003c\/li\u003e \u003cli\u003eAutomatic gain control adapts to the input level\u003c\/li\u003e \u003cli\u003eSOP-8 package with eight connection pins\u003c\/li\u003e \u003cli\u003eNo external calibration required\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eAn IC-based microphone amplifier converts weak analog output signals from electret condenser microphones into usable audio signals. The module automatically adjusts the gain and thus keeps the output level stable between 0 and 2.7 V, regardless of how loud or quiet the sound source is.\u003c\/p\u003e \u003cp\u003eSince the amplifier is designed for voltages between 2.7 and 5.5 V, it can be connected directly to 3.3 V systems or 5 V boards. Automatic level control relieves the microcontroller of further processing and provides a consistent output signal even at varying volume levels. Calibration is not required.\u003c\/p\u003e \u003cp\u003eTypical applications include voice or noise detection in IoT devices, voice-activated functions, or acoustic monitoring of machines. In project contexts, the module serves as a frontend for audio processing on microcontrollers with analog-to-digital converters.\u003c\/p\u003e \u003cp\u003eConnect the microphone and output lines according to the datasheet. The output frequency depends on the ADC used and its sampling rate. If necessary, the power supply must be stabilized relative to other components to prevent noise interference.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for installation in household electrical circuits. If you have questions about integration into existing systems or about the power supply, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x MAX9814 microphone amplifier\u003c\/li\u003e \u003cli\u003e1x pin header\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997865091421,"sku":"F23106450","price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/max9814-mikrofonverstaerker-funduino-3768950.png?v=1791494247"},{"product_id":"elektromagnet-dc12v-wf-p20-15-2-5kg","title":"WF-P20\/15 Electromagnet - 12 V DC, holding force 2.5 kg","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eElectromagnet for direct current, 12 V operating voltage\u003c\/li\u003e \u003cli\u003eHolding force of 5 kg in continuous operation\u003c\/li\u003e \u003cli\u003eCoil resistance at rest: 9.6 ohms\u003c\/li\u003e \u003cli\u003eConnection via terminal connectors for direct connection to a power source or relay\u003c\/li\u003e \u003cli\u003eDesign with magnetic core and winding on a plastic coil former\u003c\/li\u003e \u003cli\u003eMagnetization and demagnetization are controlled electronically without mechanical adjustment\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe electromagnet is a switching element for applications in which an electrical control voltage needs to exert a mechanical force. With an operating voltage of 12 V and a holding force of 5 kg, it provides sufficient force for many automation projects in model engineering and simple laboratory setups.\u003c\/p\u003e \u003cp\u003eThe operating principle is very simple: As soon as direct current flows through the coil, a magnetic field is generated that attracts ferromagnetic materials. The current flows directly through the terminal connectors. When the power supply is switched off, the magnetic field disappears immediately and the force decreases. The relatively low coil resistance of 9.6 ohms allows connection to standard power sources or via a relay as an intermediate switch.\u003c\/p\u003e \u003cp\u003eElectromagnets of this design are suitable for holding workpieces in fixtures, activating locking mechanisms, or serving as an armature in simple actuators. They can also be used in model railway applications or for automatically opening and closing latches, provided that the 5 kg force is sufficient.\u003c\/p\u003e \u003cp\u003eOperation requires a 12 V DC power source. When connected directly to batteries or power supplies, the available current must be at least 1.25 A to achieve the full holding force. If the power supply is controlled by switching logic, a relay can be used as an interface, with the relay itself controlled by the microcontroller. Heat generation during extended continuous operation must be taken into account.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eElectromagnets attract ferromagnetic objects and may release them abruptly in the event of a fault or power failure. Secure the magnetic field within your setup to prevent flying parts from causing injury. This product is intended exclusively for prototype construction as well as testing and development purposes and is not intended for installation in household electrical circuits.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eDC12V WF-P20\/15 2.5Kg electromagnet\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997880099165,"sku":"F23107014","price":3.98,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/elektromagnet-dc12v-wf-p2015-25kg-funduino-4373973.png?v=1791494842"},{"product_id":"orbbec3d-3d-kamera-astra-stereo-s-u3","title":"Orbbec Astra Stereo S U3 - 3D camera, USB 3.0, 0.4-3 m","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e3D camera with a stereo vision principle for real-time capture of depth data and color video\u003c\/li\u003e \u003cli\u003eUSB-3.0 interface for direct connection to computers and single-board computers\u003c\/li\u003e \u003cli\u003eDetection range from 0.4 to 3.0 meters, suitable for short- and medium-range applications\u003c\/li\u003e \u003cli\u003eOutput as structured data for processing in real-time applications\u003c\/li\u003e \u003cli\u003eTwo fully synchronized sensor arrays (stereo principle) without external calibration\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe stereo 3D camera simultaneously captures depth data and color video using two synchronized sensor arrays. The stereo vision principle calculates spatial depth from the differences between the two sensor images. The USB-3.0 interface connects the camera directly to the computer, where image data and depth values are available as structured data streams.\u003c\/p\u003e \u003cp\u003eThe detection range extends from 0.4 to 3.0 meters. This enables use in indoor environments and workspaces, but excludes large open areas or long-distance measurements. The lack of calibration after delivery saves preparation time; the stereo geometry is fixed at the factory.\u003c\/p\u003e \u003cp\u003eUse cases include robot navigation, obstacle detection in mobile systems, 3D capture for image processing, and motion detection in laboratory applications. Anyone prototyping a system with live depth processing, for example for person recognition or gesture recognition, can use the data immediately after USB transmission.\u003c\/p\u003e \u003cp\u003eThe camera requires a USB-3.0 port on the target computer and sufficient CPU capacity to process the real-time data streams. The manufacturer's corresponding software library is required for application development. At detection distances below 0.4 meters or above 3.0 meters, the stereo method does not work reliably.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThis camera is intended exclusively for building prototypes and for testing and development purposes, not for continuous use in production systems. Prolonged direct exposure to the active sensor may cause eye irritation. If you have questions about integration into existing systems, contact a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1 x Orbbec Astra Stereo S U3 3D camera\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997926203741,"sku":"F23110190","price":79.69,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/orbbec3d-3d-kamera-astra-stereo-s-u3-funduino-3762751.png?v=1791493874"},{"product_id":"tec1-12705-thermoelektrisches-peltierelement-45w-40-40mm","title":"TEC1-12705 Peltier element - 45 W, 12 V, 40 x 40 mm","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eThermoelectric Peltier element with a power rating of 45 W\u003c\/li\u003e \u003cli\u003eVoltage: 12 V DC\u003c\/li\u003e \u003cli\u003eTemperature difference of up to 69 K between the hot and cold sides\u003c\/li\u003e \u003cli\u003eCeramic surfaces on both sides\u003c\/li\u003e \u003cli\u003eDimensions: 40 * 40 * 3.4 mm\u003c\/li\u003e \u003cli\u003eDirect heat pump operation without moving parts\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eA thermoelectric Peltier element pumps heat from one side to the other when direct current flows through the series connection of bismuth telluride semiconductor elements. The element operates without wear and without mechanical components; the side with the higher potential is cooled, while the other side heats up. With a power rating of 45 W at 12 V and an achievable temperature difference of up to 69 K, this element is suitable for small cooling or heating tasks in laboratory environments.\u003c\/p\u003e \u003cp\u003eThe Peltier element requires good thermal contact on both sides to perform effectively. Without a heat sink on the hot side and heat dissipation from the cold side, the element may damage itself. The ceramic surfaces are fragile and cannot withstand impacts or vibrations. Even minor contamination or unclean contact surfaces significantly reduce efficiency.\u003c\/p\u003e \u003cp\u003eApplications include laboratory cooling of semiconductor elements, temperature control of measuring points in high-precision measurement technology, and small experimental heat storage systems. The element is also used in Peltier demonstration systems, for example to demonstrate the reversibility of heat pumps or to generate electricity from a temperature gradient.\u003c\/p\u003e \u003cp\u003eOperation requires a stable 12 V power source and a mechanical mounting that absorbs tensile or compressive forces without clamping the element. Heat sinks, thermal paste, and thermal insulation materials must be obtained separately. The element may only be used in laboratories or for testing purposes.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe element becomes hot and may cause burns on contact; a heat sink on the hot side is required. Work on or near the power supply is reserved for qualified electricians. The Peltier element is intended exclusively for building prototypes and for testing and development purposes, and is not suitable for use in stationary cooling or heating systems.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1* TEC1-12705 thermoelectric Peltier element\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997930660189,"sku":"F23107003","price":4.22,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/tec1-12705-thermoelektrisches-peltierelement-45w-4040mm-funduino-5656118.png?v=1791494488"},{"product_id":"subwoofer-vorverstarker-ne5532-mit-tiefpassfilter-dc-12v-24v","title":"NE5532 subwoofer preamplifier - low-pass filter, 12-24 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAmplifier module with low-pass filter for subwoofer applications\u003c\/li\u003e \u003cli\u003eNE5532 operational amplifier with adjustable filter cutoff frequency\u003c\/li\u003e \u003cli\u003eInput level up to 2 V, 10x gain\u003c\/li\u003e \u003cli\u003eOutput signals exclusively in the bass range below approx. 200 Hz\u003c\/li\u003e \u003cli\u003eBipolar power supply of +\/- 12 V to +\/- 15 V\u003c\/li\u003e \u003cli\u003eSmall circuit board with 3.5 mm jack or RCA input\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe subwoofer preamplifier with low-pass filter processes audio signals by filtering out bass frequencies and boosting them specifically. The module uses the NE5532 operational amplifier, a classic low-frequency amplifier optimized for audio applications. The tenfold gain and adjustable filter cutoff frequency allow the bass response to be adapted to different room conditions and subwoofer characteristics without affecting the high frequencies.\u003c\/p\u003e \u003cp\u003eThe module accepts signals up to 2 V and amplifies them to up to 20 V; therefore, the output signal must remain within the supply voltage range of the connected subwoofer. The low-pass filter suppresses all frequencies above the set cutoff frequency, typically around 200 Hz. This protects the subwoofer from unwanted high-frequency components and reduces interference caused by near-field effects.\u003c\/p\u003e \u003cp\u003eApplications include supporting existing active speaker inputs, for example when an audio interface or amplifier does not provide a dedicated subwoofer output. In home theater setups, the module provides the bass channel from stereo or multichannel sources. The module can also be used as a pre-stage in analog synthesizer setups with low-frequency modules, where preventive filtering prevents sound distortion caused by overloading.\u003c\/p\u003e \u003cp\u003eOperation requires a bipolar power supply with at least +12 V and -12 V; a simple single-ended power supply will not work. The inputs are unbalanced (jack or RCA), but the output still requires a power amplifier or an active subwoofer with input sensitivity control. When operating with sources that have higher output power, the input impedance should be checked.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for installation in the household power circuit or in consumer devices. Observe the required bipolar power supply and avoid short circuits at the outputs. If you are unsure about integrating the module into audio equipment or about the power supply, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Subwoofer preamplifier NE5532 with low-pass filter, DC 12V-24V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997933379933,"sku":"F23107754","price":4.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/subwoofer-vorverstaerker-ne5532-mit-tiefpassfilter-dc-12v-24v-funduino-9722715.png?v=1791494503"},{"product_id":"raspberry-pi-4-model-b-2-gb-ram-64-bit-1-5-ghz-cpu-wlan-lan","title":"Raspberry Pi 4 Model B - 2 GB RAM, 1.5 GHz quad-core, Wi-Fi","description":"\u003ch2\u003eRaspberry Pi 4 Model B with 2 GB RAM, 64-bit 1.5 GHz Quad-Core CPU, Wi-Fi, LAN, Bluetooth 5.0, Type D HDMI\u003c\/h2\u003e \u003cp\u003eThe 4th generation offers groundbreaking improvements in processor speed, enabling smooth media playback. An update to the RAM and connectivity compared with the previous version, the Raspberry Pi 3 Model B+, has also been provided. Important features such as backward compatibility and similarly low power consumption have been carried over to the new generation.\u003c\/p\u003e \u003cp\u003eFor end users, the Raspberry Pi 4 Model B offers solid desktop performance comparable to entry-level regular office PCs.\u003c\/p\u003e \u003cp\u003eKey features include a powerful 64-bit ARM v8 quad-core processor, 2 GB of ultra-fast LPDDR4 RAM, and support for up to two 4K displays via two micro-HDMI ports. Hardware video decoding up to 4K@60Hz is also supported. The board's networking capabilities are provided by dual-band 802.11 b\/g\/n\/ac wireless LAN (Wi-Fi) and a Gigabit Ethernet port.\u003c\/p\u003e \u003cp\u003eThe Raspberry Pi 4 Model B provides additional interfaces through two USB 3.0 ports, two USB 2.0 ports, and a fast Bluetooth 5.0 interface. By using an additional PoE (Power over Ethernet) HAT, the computer can also be powered via the LAN interface.\u003c\/p\u003e \u003ch3\u003eOverview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e64-bit quad-core Cortex-A72 processor\u003c\/li\u003e \u003cli\u003e2GB LPDDR4 RAM\u003c\/li\u003e \u003cli\u003e2x Micro HDMI ports\u003c\/li\u003e \u003cli\u003e2x USB 3.0 ports\u003c\/li\u003e \u003cli\u003e2x USB 2.0 ports\u003c\/li\u003e \u003cli\u003eGigabit Ethernet port\u003c\/li\u003e \u003cli\u003e802.11b\/g\/n\/ac Wi-Fi\u003c\/li\u003e \u003cli\u003eBluetooth 5.0\u003c\/li\u003e \u003cli\u003ePoE (a PoE module is required)\u003c\/li\u003e \u003cli\u003e5V\/3A USB-C power supply required (not included)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003ePackage contents\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e1* Raspberry Pi 4 Model B - 2 GB RAM, 64-bit 1.5 GHz CPU, Wi-Fi, LAN\u003c\/li\u003e \u003c\/ul\u003e","brand":"Raspberry Pi","offers":[{"title":"Default Title","offer_id":65997936361821,"sku":"F23110070","price":48.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/raspberry-pi-4-model-b-2-gb-ram-64-bit-15-ghz-cpu-wlan-lan-funduino-4869708.png?v=1791496216"},{"product_id":"prototyping-shield-fur-uno-r3-mikrocontroller","title":"Prototyping shield for Arduino UNO R3 - with pin headers","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Arduino UNO R3 and compatible boards\u003c\/li\u003e \u003cli\u003ePre-soldered headers on all digital ports and analog inputs\u003c\/li\u003e \u003cli\u003eBreadboard-compatible pin headers for flexible circuit construction\u003c\/li\u003e \u003cli\u003eIntegrated power rails for 5 V and ground\u003c\/li\u003e \u003cli\u003eOverall dimensions match the UNO form factor\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe expansion module stacks onto Arduino-format microcontroller boards and provides all port connections as plug-in contacts. The soldered headers allow sensors, actuators, and additional modules to be connected directly without wire connections. The pin headers are breadboard-compatible, allowing individual components or prototyping boards to be integrated as well.\u003c\/p\u003e \u003cp\u003eThe shield provides continuous power rails for 5 V and ground on each side. This eliminates the need for distribution adapters and keeps the setup organized and stable. The power supply comes from the UNO board itself; the shield only passes it through. This allows multiple modules and sensors to be operated in parallel from a central power distributor, provided that the total current consumption does not exceed the UNO board's capacity.\u003c\/p\u003e \u003cp\u003eTypical applications include prototypes with multiple sensors operating simultaneously, such as environmental monitoring or robotics projects where motor, servo, and sensor connections need to be consolidated. The shield also provides a stable platform for educational circuits, allowing students to test various components without soldering.\u003c\/p\u003e \u003cp\u003eAn Arduino UNO R3 or a compatible board with the same connector layout is required. The power supply provided through the shield is limited to 5 V; voltage regulators are required for components with other operating voltages. Depending on the design variant and power supply type, the shield partially covers the USB and power connectors of the main board. Sufficient clearance between the shield and the external power supply should be allowed for.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes and must not be connected to the household power circuit. When connecting components with higher current consumption, ensure that the total load does not exceed the available power supply of the UNO board; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Prototyping Shield for UNO R3 microcontroller\u003c\/li\u003e \u003cli\u003e1x Breadboard\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997936787805,"sku":"F23107388","price":2.43,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/prototyping-shield-fuer-uno-r3-mikrocontroller-funduino-2979546.png?v=1791495936"},{"product_id":"ch340-mikrocontroller-board-kompatibel-mit-arduino-uno-r3","title":"CH340 microcontroller board - 5 V, USB, compatible with Arduino UNO R3","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eUSB-to-serial converter with microcontroller for prototyping and experiments\u003c\/li\u003e \u003cli\u003eCompatible with the Arduino IDE and ecosystem\u003c\/li\u003e \u003cli\u003eCH340 chip for direct USB communication without additional hardware\u003c\/li\u003e \u003cli\u003e5 V operating voltage, digital and analog inputs\/outputs\u003c\/li\u003e \u003cli\u003eProgram uploads possible via USB port\u003c\/li\u003e \u003cli\u003eBoard with through-hole pin headers for breadboard integration\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eA microcontroller board with a CH340 converter connects a microcontroller directly to the computer’s USB port. This enables both programming and serial communication over a single connection. Anyone using the Arduino IDE can immediately work with familiar programming tools without having to install additional software.\u003c\/p\u003e \u003cp\u003eThe CH340 chip converts USB signals into serial data. This eliminates the need for a separate adapter and keeps the board compact. The 5 V operating voltage powers both the processor and most connected sensors and actuators, provided they are also designed for 5 V. A level shifter is required for 3.3 V modules.\u003c\/p\u003e \u003cp\u003eThe board is suitable for beginner projects such as blinkers and temperature displays as well as for medium-sized automation projects, such as controlling motors via relays or reading multiple sensors using the I2C bus. The through-hole pin headers fit directly onto a breadboard, reducing wiring effort.\u003c\/p\u003e \u003cp\u003eOperation requires a USB port on the computer. CH340 drivers must be installed before the first upload if the operating system does not already include them. The USB connection can supply power for extended periods, but permanently higher power requirements require an external power supply connected to the voltage inputs.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe board is not intended for installation in the household power circuit. It is intended exclusively for building prototypes and for testing and development purposes. Work on or near electrical installations is reserved for qualified electricians; if you are unsure about the power supply or safe connection, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x microcontroller (compatible with Arduino UNO R3) with CH340 chip\u003c\/li\u003e \u003cli\u003e1x pin header (40P)\u003c\/li\u003e \u003cli\u003e1x USB cable\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997944291677,"sku":"F23107171","price":12.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/ch340-mikrocontroller-board-kompatibel-mit-arduino-uno-r3-funduino-5306853.png?v=1791495995"},{"product_id":"esp32-r32-d1-entwicklungsboard-mit-wifi-bluetooth","title":"ESP32 R32 D1 development board - WiFi, Bluetooth, 26 GPIO","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e32-bit microcontroller with WiFi and Bluetooth on a single board\u003c\/li\u003e \u003cli\u003e5 V operating voltage via USB or external power supply\u003c\/li\u003e \u003cli\u003eDual-core processor with a clock frequency of 240 MHz\u003c\/li\u003e \u003cli\u003e26 GPIO pins for digital and analog signals\u003c\/li\u003e \u003cli\u003eI2C, SPI, and UART for connecting sensors and modules\u003c\/li\u003e \u003cli\u003e4 MB flash memory for programs and data\u003c\/li\u003e \u003cli\u003eIntegrated USB interface for flashing and power supply\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis development board combines a powerful microcontroller with wireless communication in a compact design. With its dual-core processor and 240 MHz clock frequency, it provides sufficient processing capacity and memory for more complex projects. WiFi and Bluetooth enable wireless connections to networks, smartphones, or other devices without additional modules.\u003c\/p\u003e \u003cp\u003eThe 26 GPIO pins provide flexibility when connecting sensors, switches, and actuators. The I2C, SPI, and UART interfaces allow several components to operate simultaneously, such as a temperature sensor, motion detector, and LCD display on the same board. The integrated USB interface supplies power to the board and serves as a programming connection, making external programmers unnecessary.\u003c\/p\u003e \u003cp\u003eTypical applications include connected measurement stations that send sensor readings to a home WiFi network, controls with remote access via smartphone, or IoT prototypes with data logger functionality. Home automation projects with local control of multiple devices can also be built with it. A real-time clock or additional sensors can be connected via I2C when needed.\u003c\/p\u003e \u003cp\u003eProgramming requires the usual development environment and a USB connection to the computer. Any USB power supply or a 5 V battery pack can be used as an external power source if additional power is required for higher loads than USB can provide. A level shifter is required when operating with other voltage levels or in systems with 3.3 V logic.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe board is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in the household electrical circuit. Work on or near electrical installations must be carried out by qualified electricians. Consult a qualified electrician before commissioning when connecting high-current actuators or operating with external voltages.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x ESP32 R32  D1 development board with WiFi + Bluetooth\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997945438557,"sku":"F23107798","price":8.16,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/esp32-r32-d1-entwicklungsboard-mit-wifi-bluetooth-funduino-2114605.png?v=1791495043"},{"product_id":"raspberry-pi-4-model-b-2-gb-ram-64-bit-1-5-ghz-cpu-wlan-lan-gebraucht","title":"Raspberry Pi 4 Model B - 2 GB RAM, 1.5 GHz, Wi-Fi, used","description":"\u003ch2\u003eRaspberry Pi 4 Model B with 2 GB RAM, 64-bit 1.5 GHz quad-core CPU, Wi-Fi, LAN, Bluetooth 5.0, Type D HDMI\u003c\/h2\u003e \u003cp\u003eThe 4th generation offers groundbreaking improvements in processor speed, enabling smooth media playback. It also features an upgrade to the RAM and connectivity compared to its predecessor, the Raspberry Pi 3 Model B+. Important features such as backward compatibility and similarly low power consumption have been carried over to the new generation.\u003c\/p\u003e \u003cp\u003eFor end users, the Raspberry Pi 4 Model B offers solid desktop performance comparable to entry-level regular office PCs.\u003c\/p\u003e \u003cp\u003eKey features include a powerful 64-bit ARM v8 quad-core processor, 2 GB of super-fast LPDDR4 RAM, and support for up to two 4K displays via two Micro HDMI ports. Hardware video decoding up to 4K@60Hz is also supported. The board’s networking capabilities are provided by dual-band 802.11 b\/g\/n\/ac wireless LAN (Wi-Fi) and a Gigabit Ethernet port.\u003c\/p\u003e \u003cp\u003eThe Raspberry Pi 4 Model B provides additional interfaces through two USB 3.0 ports, two USB 2.0 ports, and a fast Bluetooth 5.0 interface. With an additional PoE (Power over Ethernet) HAT, the computer can also be powered through the LAN interface.\u003c\/p\u003e \u003ch3\u003eOverview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e64-bit quad-core Cortex-A72 processor\u003c\/li\u003e \u003cli\u003e2GB LPDDR4 RAM\u003c\/li\u003e \u003cli\u003e2x Micro HDMI ports\u003c\/li\u003e \u003cli\u003e2x USB 3.0 ports\u003c\/li\u003e \u003cli\u003e2x USB 2.0 ports\u003c\/li\u003e \u003cli\u003eGigabit Ethernet port\u003c\/li\u003e \u003cli\u003e802.11b\/g\/n\/ac Wi-Fi\u003c\/li\u003e \u003cli\u003eBluetooth 5.0\u003c\/li\u003e \u003cli\u003ePoE (a PoE module is required)\u003c\/li\u003e \u003cli\u003e5V\/3A USB-C power supply required (not included)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eNote!\u003c\/h3\u003e \u003cp\u003eThese used modules have been used to a limited extent in display units and are supplied exactly like the new modules with a full warranty, but without the original packaging.\u003c\/p\u003e \u003ch3\u003eScope of delivery\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e1* Raspberry Pi 4 Model B - 2 GB RAM, 64-bit 1.5 GHz CPU, Wi-Fi, LAN\u003c\/li\u003e \u003c\/ul\u003e","brand":"Raspberry Pi","offers":[{"title":"Default Title","offer_id":65997946159453,"sku":"F23110180","price":44.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/raspberry-pi-4-model-b-2-gb-ram-64-bit-15-ghz-cpu-wlan-lan-gebraucht-funduino-3833981.png?v=1791496011"},{"product_id":"lm2596s-einstellbares-dc-dc-netzteil-step-down-modul","title":"LM2596S step-down module - 3-40 V to 1.5-35 V, 3 A","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAdjustable step-down voltage converter with LM2596S chip\u003c\/li\u003e \u003cli\u003eInput voltage 3 V to 40 V, output continuously adjustable from 1.5 V to 35 V\u003c\/li\u003e \u003cli\u003eMaximum output current 3 A\u003c\/li\u003e \u003cli\u003eSwitching frequency of 150 kHz enables a compact design\u003c\/li\u003e \u003cli\u003eConnection via four solder pads (IN+, IN−, OUT+, OUT−)\u003c\/li\u003e \u003cli\u003eIntegrated overcurrent protection and thermal shutdown\u003c\/li\u003e \u003cli\u003eAll required energy storage and freewheeling components already soldered\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis step-down voltage converter reduces an applied DC voltage to a lower, continuously adjustable value using switching regulation. With an integrated LM2596S chip, the module operates at a switching frequency of 150 kHz, achieving high efficiency with minimal space requirements.\u003c\/p\u003e \u003cp\u003eThe desired output voltage is set using a potentiometer on the circuit board. It is important that the input voltage is at least 1.5 V above the target output, as the converter only steps voltage down. Increasing the voltage is not possible.\u003c\/p\u003e \u003cp\u003eThe inductor, electrolytic capacitors, and freewheeling diode are already fitted and soldered. For operation, simply connect the input and output wires to the four solder pads. At full load, the chip may become noticeably warm and may require additional cooling; integrated overcurrent protection and thermal shutdown protect the module against overload.\u003c\/p\u003e \u003cp\u003eThe module is suitable wherever different supply voltages need to be adjusted to uniform levels. Battery voltages can be stabilized just as effectively as solar or wind generator outputs, allowing you to power microcontroller boards, motor drivers, or analog electronics. The wide input voltage range of 3 V to 40 V and output current of up to 3 A cover typical development and prototyping projects.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eWhen operating with mains voltage, this module must not be connected directly to the household electrical circuit. The module is intended exclusively for building prototypes and for testing and development purposes. A qualified electrician must be consulted when planning or carrying out modifications to the power supply, or if there is any uncertainty before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1* LM2596S - Adjustable DC-DC Power Supply - Step-Down Module\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997954154845,"sku":"F23106696","price":2.08,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/lm2596s-einstellbares-dc-dc-netzteil-step-down-modul-funduino-4247835.png?v=1791496297"},{"product_id":"raspberry-pi-30w-kamera-modul-ov7670","title":"OV7670 camera module - 640 x 480 pixels, 3,3 V, I2C","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCamera module with a 0.3-megapixel sensor for single-board computers and microcontrollers\u003c\/li\u003e \u003cli\u003eResolution: 640 * 480 pixels\u003c\/li\u003e \u003cli\u003eField of view: 60 degrees\u003c\/li\u003e \u003cli\u003eConnection via parallel data line and I2C bus\u003c\/li\u003e \u003cli\u003eOperating voltage: 3.3 V\u003c\/li\u003e \u003cli\u003eCompact design for space-constrained projects\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe camera module with an OV7670 sensor captures images at VGA resolution and connects to single-board computers or development boards via data and control lines. The sensor outputs digital RGB or YUV data in parallel, while the I2C interface handles register settings for exposure and color values. The 3.3 V logic requires a suitable level shifter if the board uses 5 V buffers.\u003c\/p\u003e \u003cp\u003eThe 640 * 480-pixel resolution is suitable for real-time image processing because the data volumes remain manageable. At typical distances of 30 to 50 cm, the 60-degree field of view still captures details across an area approximately 35 to 60 cm wide. In applications such as motion detection or simple object tracking, the processing load remains low enough on the microcontroller for live processing.\u003c\/p\u003e \u003cp\u003eSpecific areas of application include indoor robot navigation, where the sensor detects obstacles or markers, as well as inspection projects with a fixed camera that regularly documents patterns or changes in condition. Hobby applications such as simple motion detectors or image-buffered monitoring also work with this module.\u003c\/p\u003e \u003cp\u003eIn addition to the board, data bus management for the eight to ten parallel lines and drivers for I2C control are required. The sensor must be mounted on a stable mechanical bracket, as vibrations can noticeably reduce image quality. Code libraries for the OV7670 are available for common development environments, but may require considerable customization depending on the board.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe module operates exclusively with 3.3 V logic levels; direct connection to 5 V levels will cause damage. The device is intended exclusively for prototyping as well as testing and development purposes. Work on electrical systems must be carried out by qualified electricians; if you have questions about safely integrating the module into larger systems, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Raspberry Pi 30W Camera Module OV7670\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997955072349,"sku":"F23108743","price":3.78,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/raspberry-pi-30w-kamera-modul-ov7670-funduino-1059916.png?v=1791496306"},{"product_id":"l9110-breakoutboard-mit-motor-und-propeller","title":"L9110 motor driver - 2,5-12 V, 2 channels, with motor and propeller","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMotor controller breakout board with two outputs for DC motors up to 800 mA\u003c\/li\u003e \u003cli\u003eDirect PWM control of speed and direction\u003c\/li\u003e \u003cli\u003eOperating voltage: 2.5 to 12 volts\u003c\/li\u003e \u003cli\u003eFour digital I\/O pins for control\u003c\/li\u003e \u003cli\u003eI2C- and SPI-compatible logic levels\u003c\/li\u003e \u003cli\u003ePropeller included\u003c\/li\u003e \u003cli\u003eCompact DIP design for breadboards and perforated circuit boards\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe L9110 is a motor controller breakout board for controlling two DC motors or one stepper motor via PWM signals. The board controls speed and direction by switching the input voltage to the motor terminals using pulse-width modulation. This enables stepless speed control and direction changes with minimal circuitry.\u003c\/p\u003e \u003cp\u003eThe operating voltage range of 2.5 to 12 volts makes the board flexible for use with various power sources, from battery packs and USB voltage regulators to standard laboratory power supplies. The current per channel must not exceed 800 mA; a more powerful controller is required above this limit. The four digital inputs use standard logic levels and connect easily to microcontroller boards or logic IC outputs.\u003c\/p\u003e \u003cp\u003eApplications include small robotics projects, model vehicles with forward and reverse operation, fan control, and workshop automation such as drill chuck control. The included propeller enables immediate initial testing, for example in air-powered experiments or as a speed demonstrator.\u003c\/p\u003e \u003cp\u003eA microcontroller or digital signal generator for PWM control, connection wires to the motor terminal blocks, and a separate power supply are required if the logic board's power supply is insufficient. The GND lines of all components must be connected to one another.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThis module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in the household electrical circuit. Motors may become hot during operation; accessible surfaces must be checked regularly for unexpected temperature increases. Consult a qualified electrician if the module is to be used in or near an existing electrical installation.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cp\u003eA microcontroller or digital signal generator for PWM control, connection wires to the motor terminal blocks, and a separate power supply are required if the logic board's power supply is insufficient. The GND lines of all components must be connected to one another.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997955268957,"sku":"F23106461","price":3.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/l9110-breakoutboard-mit-motor-und-propeller-funduino-6184201.png?v=1791495584"},{"product_id":"spi-mikrosd-karten-modul-tf-card-reader","title":"MicroSD card module - SPI, TF card reader, 5 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCard reader module for MicroSD and TF memory cards\u003c\/li\u003e \u003cli\u003eSPI interface for connecting to microcontrollers\u003c\/li\u003e \u003cli\u003e5 V power supply via VCC recommended\u003c\/li\u003e \u003cli\u003eSuitable for microcontrollers with 3.3 V SPI logic\u003c\/li\u003e \u003cli\u003eSupports FAT16 and FAT32 file systems\u003c\/li\u003e \u003cli\u003eIdeal for data logging and local data storage\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe SPI MicroSD card module enables data to be read from and written to MicroSD or TF memory cards. Communication with the microcontroller takes place via the SPI interface using the SCK, MOSI, MISO, and CS signals.\u003c\/p\u003e \u003cp\u003eThe module is suitable, for example, for data loggers, sensor data recording, configuration files, or other applications in which larger amounts of data need to be stored outside the internal memory of a microcontroller.\u003c\/p\u003e \u003cp\u003eThe module features a voltage regulator for powering the memory card. Therefore, it is recommended to supply the module's VCC input with 5 V. If the VCC input is supplied with only 3.3 V, the memory card's supply voltage may be too low due to the upstream voltage regulator. This can lead to unstable behavior, particularly during initialization, reading, or writing.\u003c\/p\u003e \u003cp\u003eThe SPI signals can be used with 3.3 V microcontrollers such as the ESP32, Raspberry Pi Pico, or RP2040. The supply voltage at the VCC connection and the logic levels of the SPI interface should be considered separately.\u003c\/p\u003e \u003cp\u003eIn addition to the power supply, four SPI signals are required for connection: SCK, MOSI, MISO, and CS. On the software side, a suitable SD card library is required. In the Arduino IDE, the SD library can be used for this purpose, for example.\u003c\/p\u003e \u003cp\u003eFor maximum compatibility, using a FAT16- or FAT32-formatted memory card is recommended.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for prototyping and for testing and development purposes. When connecting it, ensure that the power supply polarity is correct and that the voltage levels permitted by the microcontroller being used are observed.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x SPI MicroSD Card Module \/ TF Card Reader\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997978009949,"sku":"F23106642","price":1.72,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/spi-mikrosd-karten-modul-tf-card-reader-funduino-3871655.png?v=1791496334"},{"product_id":"esp32-mikrocontroller-in-uno-r3-bauform-espduino","title":"ESP32 ESPDUINO microcontroller - UNO R3 form factor, Wi-Fi, Bluetooth","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMicrocontroller in Arduino UNO R3 form factor with integrated ESP32 Wi-Fi module\u003c\/li\u003e \u003cli\u003eWi-Fi 802.11 b\/g\/n and Bluetooth 4.2 LE, dual-core processor with a clock speed of 240 MHz\u003c\/li\u003e \u003cli\u003e20 digital inputs\/outputs (3.3 V), 6 analog inputs, SPI, I2C, UART, PWM\u003c\/li\u003e \u003cli\u003e4 MB flash memory\u003c\/li\u003e \u003cli\u003eOperating voltage 5–12 V DC via USB or barrel jack\u003c\/li\u003e \u003cli\u003eProgramming via the Arduino IDE or Facilino, onboard CH340 USB-to-serial converter\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis microcontroller combines an ESP32 Wi-Fi module with the mechanical and electrical pinout of an Arduino UNO R3. This design enables existing UNO shields to be used and physically integrated into existing setups without having to replace the board itself. The board uses a dual-core processor with a clock speed of 240 MHz and four megabytes of flash memory.\u003c\/p\u003e \u003cp\u003ePower is supplied via a USB connection or a 5–12 V barrel jack. A CH340 chip converts the USB connection into serial data during programming. The 20 digital and 6 analog connections follow the UNO standard; however, the ESP32 pinout differs from that of classic 8-bit Arduinos, so software must be adapted for the new processor. Additional pin headers expose further ESP32 pins.\u003c\/p\u003e \u003cp\u003eWi-Fi and Bluetooth enable wireless communication without separate modules. Sensors, displays, and other components can be connected via SPI, I2C, and UART. PWM outputs and interrupt-capable pins enable real-time control tasks. Typical projects range from sensor and automation setups to IoT applications and wireless data acquisition.\u003c\/p\u003e \u003cp\u003eProgramming requires the Arduino IDE with ESP32 board support enabled; alternatively, Facilino is available. The CH340 USB driver must be installed on the development computer. Since the ESP32 logic levels are limited to 3.3 V and cannot directly tolerate 5 V logic, analog inputs receiving 5 V signals require a level shifter or voltage divider.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe board operates with 3.3 V logic and cannot tolerate direct 5 V input signals. It is intended exclusively for building prototypes and for testing and development purposes and is not designed for connection to the household power grid. When powering the board via the barrel jack, ensure correct polarity; if you are unsure about commissioning the board, consult a qualified electrician before starting work.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x ESP32 microcontroller - in UNO R3 form factor, ESPDUINO\u003c\/li\u003e \u003cli\u003eNote: USB cable is not included\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997981450589,"sku":"F23107400","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/esp32-mikrocontroller-in-uno-r3-bauform-espduino-funduino-8780182.png?v=1791496353"},{"product_id":"sx1308-xhm415-step-up-wandler","title":"SX1308 Step-Up Converter - 2-24 V to up to 28 V, 2 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStep-up switching regulator with an input voltage of 2–24 V and an output voltage of up to 28 V\u003c\/li\u003e \u003cli\u003eMaximum output current of 2 A; can power multiple consumers\u003c\/li\u003e \u003cli\u003eFixed-frequency operating mode for low-noise applications\u003c\/li\u003e \u003cli\u003eOverload and short-circuit protection circuits\u003c\/li\u003e \u003cli\u003ePCB with SMD components and connection pad for an external load\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe step-up converter increases low DC voltages to higher voltage levels and is suitable wherever batteries or weak power sources need to supply consumers requiring a higher voltage. The switching regulator principle stores energy in an inductor and releases it in a controlled manner to stabilize the output voltage.\u003c\/p\u003e \u003cp\u003eWith an input voltage range of 2 to 24 V, a wide variety of power sources can be connected, from two batteries in series to regulated laboratory power supplies. The output voltage can be set to up to 28 V and continuously supplies up to 2 A, allowing multiple consumers to be powered. The protection circuits interrupt the power output in the event of a short circuit or overload, protecting downstream components.\u003c\/p\u003e \u003cp\u003eApplications include powering 5 V logic from two AA batteries, controlling LED strips from a low battery voltage, or converting fluctuating solar input voltages to a constant 12 V for laboratory measurements. The fixed-frequency operating mode generates less noise than PWM-controlled systems and is therefore also suitable for sensitive measurement circuits.\u003c\/p\u003e \u003cp\u003eThe converter only requires a power source within the specified range and a load with a voltage tolerance of up to 28 V. The maximum output current of 2 A must be observed to prevent the protection functions from being triggered. For high-frequency digital signals in the immediate vicinity, a ferrite bead on the input lead is recommended.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe converter is intended exclusively for building prototypes and for testing and development purposes and is not designed for installation in the household electrical system. When using input voltages close to the upper limit of 24 V, ensure adequate cooling. Work on electrical installations is reserved for qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x SX1308, XHM415 - Step-up converter\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998032372061,"sku":"F23106841","price":1.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/sx1308-xhm415-step-up-wandler-funduino-2367582.png?v=1791495618"},{"product_id":"miniatur-schaltregler-step-down-modul-mp1584en-28v-3a","title":"MP1584EN step-down module - 4.5-28 V to 0.5-5 V, 3 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSwitching regulator module for stepping down input voltages to lower output voltages\u003c\/li\u003e \u003cli\u003eInput voltage range: 4.5 to 28 V\u003c\/li\u003e \u003cli\u003eOutput voltage adjustable between 0.5 and 5 V\u003c\/li\u003e \u003cli\u003eOutput current up to 3 A\u003c\/li\u003e \u003cli\u003eCompact design with trimmer for fine adjustment\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis step-down switching regulator efficiently converts higher input voltages into lower output voltages. Based on the MP1584EN chip, the module accepts input voltages from 4.5 to 28 V and generates an adjustable output voltage between 0.5 and 5 V, which can be fine-tuned using a trimmer potentiometer. This makes it possible to supply various loads, such as sensors or microcontroller boards, with their respective required voltages.\u003c\/p\u003e \u003cp\u003eThe regulator operates according to the switching principle and delivers up to 3 A, which is sufficient for a wide range of applications. The regulator's high switching frequency enables a compact design and minimal power loss compared with linear regulators. Thanks to its compact design, the module also fits into confined spaces, such as portable devices or larger setups containing multiple power supply modules.\u003c\/p\u003e \u003cp\u003eTypical applications include powering sensor clusters from a higher-voltage battery, supplying test setups with different logic voltage levels, or reducing vehicle electrical system voltages to 5 V for Arduino-like boards. The module is also frequently used in solar systems to charge USB devices from larger buffer batteries.\u003c\/p\u003e \u003cp\u003eTo adjust the output voltage, connect the input voltage and measure the output with a multimeter. Then carefully adjust the trimmer until the desired value is reached. Since the module has neither an integrated switch nor protection against reverse polarity, the input voltage must be connected with the correct polarity. Stabilizing capacitors at the input and output are recommended to suppress voltage spikes.\u003c\/p\u003e \u003cp\u003eBeware of reverse polarity: incorrect voltage polarity will destroy the module immediately. The output voltage must be calibrated after installation and before operation, as the trimmer is not preset at the factory. The module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in household mains circuits. When working on or near electrical installations, consult a qualified electrician.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eBeware of reverse polarity: incorrect connection of the input voltage will irreparably destroy the module. The module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in household mains circuits. When working on or near electrical installations, a qualified electrician must be consulted.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Miniature switching regulator, step-down module MP1584EN - 28V, 3A\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998149124445,"sku":"F23106745","price":1.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/miniatur-schaltregler-step-down-modul-mp1584en-28v-3a-funduino-2120090.png?v=1791495671"},{"product_id":"robomall-xl6009-lm2577-step-up-modul","title":"XL6009 step-up module - LM2577, 3.5-60 V, 2 A","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStep-up voltage regulator\u003c\/li\u003e \u003cli\u003eInput voltage range: 3.5 to 60 V\u003c\/li\u003e \u003cli\u003eOutput voltage adjustable up to 60 V\u003c\/li\u003e \u003cli\u003eOutput current up to 2 A\u003c\/li\u003e \u003cli\u003eBoard with potentiometer and LED indicator\u003c\/li\u003e \u003cli\u003eCompact DIP housing for breadboard mounting\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis step-up regulator increases DC voltages to higher voltage levels using an inductive switching process. The input voltage can be selected between 3.5 and 60 V, while the output voltage can be precisely adjusted using the integrated potentiometer. With a current of up to 2 A, the module is suitable for various loads in laboratory setups.\u003c\/p\u003e \u003cp\u003eThe LM2577 chip continuously regulates the switching operation to maintain the set output voltage. An LED indicates that the module is functioning. Since the input voltage can be lower than the output voltage, batteries or weak power sources can be adapted to the voltage level required by sensors, motors, or other modules.\u003c\/p\u003e \u003cp\u003eTypical applications include powering 5 V components from 3.3 V batteries or lower input voltages, adapting USB power sources for more power-hungry loads, and operating LED strips with a suitable voltage. The module is also practical for powering single-board computers from weak sources. The housing may become warm under higher loads.\u003c\/p\u003e \u003cp\u003eThe module is designed for direct connection to prototype setups. A safe power supply on the input side must be provided separately. Depending on the application, protective devices such as fuses or current-limiting power supplies may be required.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThis module is not intended for installation in household electrical circuits and is intended exclusively for building prototypes and for testing and development purposes. Work on or near electrical installations is reserved for qualified electricians; when using higher currents or operating larger loads, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x\u0026nbsp;RoboMall XL6009 \/ LM2577 - Step-Up Module\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998174093661,"sku":"F23106842","price":2.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/robomall-xl6009-lm2577-step-up-modul-funduino-2657686.png?v=1791495316"},{"product_id":"prototyping-shield-fur-mega2560-r3-mikrocontroller","title":"Prototyping shield for Arduino MEGA2560 R3 - with screw terminals","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003ePlug-in module for Arduino MEGA2560 R3 for prototyping on a circuit board\u003c\/li\u003e \u003cli\u003eBrings all microcontroller connections to screw terminals and standard pin headers\u003c\/li\u003e \u003cli\u003eIntegrated power distribution rails for 5 V and ground with separate connections\u003c\/li\u003e \u003cli\u003eReserved breadboard areas for additional components without occupying pins\u003c\/li\u003e \u003cli\u003eClear labeling of all connections and supply voltages\u003c\/li\u003e \u003cli\u003eEnables quick circuit changes without soldering during development\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe prototyping shield provides all outputs and inputs of the Arduino MEGA2560 R3 on screw terminals and pin headers. This allows the board to be plugged directly onto the microcontroller and provides a central distribution point for circuit assembly without wiring chaos.\u003c\/p\u003e \u003cp\u003eThe integrated power distribution rails supply connected components with 5 V and ground. Each voltage level has separate connections for operating several circuits in parallel. Breadboard areas on the board allow resistors, diodes, and other standard components to be installed without using limited microcontroller pins.\u003c\/p\u003e \u003cp\u003eThe shield is particularly suitable for beginner projects in which connections are frequently changed, as well as for educational development and prototypes with complex wiring. The labeled connections enable quick orientation even in complex setups.\u003c\/p\u003e \u003cp\u003eOperation requires a USB connection to the MEGA2560 R3 or an external power supply for the microcontroller. The board supports the standard supply voltage of 5 V, to which external sensors and actuators can also be connected.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes. Operation uses 5 V logic levels; when connecting higher-voltage components, a level shifter is required. Work on or near electrical installations is reserved for qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Prototyping Shield for MEGA2560 R3 microcontroller\u003c\/li\u003e \u003cli\u003e1x Breadboard\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998224294237,"sku":"F23107157","price":2.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/prototyping-shield-fuer-mega2560-r3-mikrocontroller-funduino-9010343.png?v=1791495341"},{"product_id":"spi-sd-speicherkartenmodul-tf-card-reader","title":"Micro-SD memory card module - SPI, up to 2 GB, 3.3 V or 5 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMemory card module for Micro-SD cards with SPI interface\u003c\/li\u003e \u003cli\u003eSupports cards up to 2 GB, FAT16 and FAT32 file systems\u003c\/li\u003e \u003cli\u003ePower supply selectable between 3.3 V and 5 V\u003c\/li\u003e \u003cli\u003eSPI connection via 8-pin header with 2.54 mm pitch featuring CS, MOSI, SCK, and MISO\u003c\/li\u003e \u003cli\u003eReading and writing files on the card\u003c\/li\u003e \u003cli\u003eIntegrated level shifting for both voltage levels\u003c\/li\u003e \u003cli\u003eCard slot with push-to-eject mechanism\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis memory card module connects microcontroller boards to Micro-SD cards via the SPI bus for data storage. The module accepts standard TF cards and enables files to be read and written using a suitable software library.\u003c\/p\u003e \u003cp\u003eThe SPI interface uses the four signal lines CS, MOSI, SCK, and MISO. Power is supplied through one of the two available power pins. If the module is connected to the 3.3 V rail, the entire logic operates at this level; if it is connected to 5 V instead, an integrated circuit automatically adjusts the signal levels. This allows the module to be used with almost all common microcontroller boards.\u003c\/p\u003e \u003cp\u003eThe module stores data only on FAT16 or FAT32 file systems, so the memory card must be formatted accordingly before first use. Typical applications include data loggers that continuously record sensor readings, or projects in which configuration data, audio files, or image files need to be stored persistently and read later. After recording, the memory card can be removed directly from the card slot and processed further in other devices.\u003c\/p\u003e \u003cp\u003eThe board features a card slot with a push-to-eject mechanism; the card is inserted as far as it will go and locks into place. The maximum storage capacity is 2 GB. In addition to the module itself, operation requires a compatible memory card and the appropriate control software for the board being used.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe module is not intended for installation in household electrical circuits and is exclusively designed for prototypes as well as testing and development purposes. Qualified electricians are responsible for work on or near electrical installations; consult a qualified electrician before commissioning if anything is unclear.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x SPI SD memory card module - TF-Card Reader\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998226129245,"sku":"F23106700","price":1.69,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/spi-sd-speicherkartenmodul-tf-card-reader-funduino-3734691.png?v=1791495789"},{"product_id":"isd1820-sprachrekorder-playback-modul-inkl-lautsprecher","title":"ISD1820 voice recorder module - 20 s recording, speaker, 5 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eVoice recorder module for recordings of up to 20 seconds\u003c\/li\u003e \u003cli\u003eIntegrated speaker for playback\u003c\/li\u003e \u003cli\u003eRecording quality: 8 kHz sample rate, mono\u003c\/li\u003e \u003cli\u003eInputs\/outputs, microphone input (analog), 4 digital control pins\u003c\/li\u003e \u003cli\u003ePower supply: 4.5 to 5.5 V\u003c\/li\u003e \u003cli\u003eDesign: compact circuit board with mounted speaker\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis voice recorder module enables simple voice and sound recordings in electronics projects. The device records via its integrated microphone, stores up to 20 seconds of speech or other sounds, and then plays them back through the built-in speaker. It requires a power supply between 4.5 and 5.5 V, which can easily be provided by the same power supply or battery pack as the control system.\u003c\/p\u003e \u003cp\u003eControl is provided via four digital pins: one for the recording function, one for playback, and two others for function sequencing and status feedback. Since only digital signals are required, the module connects directly to common microcontroller boards. The microphone records signals in analog form; the internal electronics digitize them at 8 kHz and store them in mono.\u003c\/p\u003e \u003cp\u003eIn everyday projects, the module can be used for talking robots or warning devices that play a stored message when events occur. Interactive art installations or games can also benefit from the ability to capture visitors' speech and play it back later in modified form. The small memory and limited quality make the module unsuitable for music or long speeches; it excels at short, repeated announcements.\u003c\/p\u003e \u003cp\u003eRecordings are stored in the internal RAM, not on a memory card. This means that all recordings are lost if the power fails, and only one recording can be stored per power cycle. The module itself is sufficient for operation, but it requires an external power supply and a connection to a control board with available output pins.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in household electrical circuits. Ensure that the power supply is connected with the correct polarity. Work on or near electrical installations must be carried out by qualified electricians; consult a qualified electrician before commissioning if anything is unclear.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x ISD1820 - Voice Recorder, Playback Module incl. Speaker\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998242513245,"sku":"F23106536","price":3.67,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/isd1820-sprachrekorder-playback-modul-inkl-lautsprecher-funduino-4675640.png?v=1791495840"},{"product_id":"sensor-shield-v5-0-fur-arduino-uno-und-mega","title":"Sensor Shield V5.0 - expansion board for Arduino UNO and MEGA","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Arduino UNO and MEGA with standardized sensor connectors\u003c\/li\u003e \u003cli\u003eUp to 10 analog inputs for sensors\u003c\/li\u003e \u003cli\u003eUp to 20 digital inputs and outputs\u003c\/li\u003e \u003cli\u003eI2C and SPI interfaces available\u003c\/li\u003e \u003cli\u003ePower supply via USB or an external power source\u003c\/li\u003e \u003cli\u003eAll sensors and actuators can be connected simultaneously\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe Sensor Shield V5.0 is an expansion board for Arduino UNO and MEGA that enables the direct connection of various sensors and modules via standardized sockets. The pre-soldered pin headers and connection blocks significantly reduce wiring effort and potential sources of error during prototype development.\u003c\/p\u003e \u003cp\u003eThe module is plugged onto the Arduino board and significantly expands the available inputs and outputs. With up to ten analog inputs, sensors such as temperature, light, or humidity sensors can be connected, while the up to twenty digital connections are available for relays, LEDs, or stepper motors. I2C and SPI interfaces are also provided for operating communication modules or other specialized sensor ICs on a bus.\u003c\/p\u003e \u003cp\u003eThe shield is used in environmental monitoring projects where multiple sensors simultaneously measure temperature, humidity, and brightness, as well as in robotic applications with multiple motors and limit switches. The module is also suitable for data-logging experiments in educational settings that record various measured values in parallel. One particular advantage is that the shield can be operated with UNO or MEGA without having to adapt the basic code between the platforms.\u003c\/p\u003e \u003cp\u003eThe shield is simply plugged onto the Arduino microcontroller and draws its power via USB or the external power source of the Arduino board. Projects with powerful actuators require an additional external power supply because the Arduino's USB port is not powerful enough for higher current loads.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for installation in household mains circuits. When connecting components that operate at mains voltage, a qualified electrician must be consulted. If in doubt, contact a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Sensor Shield V5.0 for Arduino UNO and MEGA\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998291960157,"sku":"F23107463","price":2.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/sensor-shield-v50-fuer-arduino-uno-und-mega-funduino-3104109.png?v=1791495848"},{"product_id":"multifunktions-shield-uno-mega","title":"Multifunction shield - screw terminals and RTC, for Arduino UNO and MEGA","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Arduino UNO and MEGA boards with integrated screw terminal block\u003c\/li\u003e \u003cli\u003eDigital outputs for controlling relays and LEDs\u003c\/li\u003e \u003cli\u003eAnalog inputs for sensors and measurement data acquisition\u003c\/li\u003e \u003cli\u003eRTC module (real-time clock) for time-controlled functions\u003c\/li\u003e \u003cli\u003eI2C and SPI interfaces for connecting additional modules\u003c\/li\u003e \u003cli\u003eSpace on the shield for expansions\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe multifunction shield adds essential input and output functions to Arduino UNO and MEGA boards on a single circuit board. The screw terminals enable easy connection of sensors, actuators, and power supplies without plug connections. This eliminates the need to build wiring on a breadboard or use individual components.\u003c\/p\u003e \u003cp\u003eThe module uses the microcontroller's available GPIO pins and makes them accessible via standardized connection blocks. The digital outputs control relays, motors, or lights. Analog inputs record measurement values from sensors such as temperature, light, or humidity sensors. The integrated RTC module provides timestamps and enables time-based processes even without an external power supply, as it has a battery holder.\u003c\/p\u003e \u003cp\u003eTypical applications include home automation with time-controlled switches, data logging of sensor readings over longer periods, or maintenance tasks in prototype systems. Setting up simple alarm functions is also significantly accelerated by the preassembled circuitry.\u003c\/p\u003e \u003cp\u003eAn Arduino UNO or MEGA board is required. The shield is plugged onto the pin headers and requires no additional power supply when the host board is powered. For battery-backed timekeeping, a button cell (usually CR2032) must be inserted.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module is not intended for integration into the household electrical circuit. It is intended exclusively for building prototypes and for testing and development purposes. When controlling devices connected to the electrical installation, all work must be carried out by a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x\u0026nbsp;Multi function Shield UNO\/MEGA\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998293107037,"sku":"F23106843","price":3.56,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/multifunktions-shield-unomega-funduino-1127323.png?v=1791495478"},{"product_id":"mini-dc-dc-step-up-spannungswandler-5v-8v-9v-12v-1-5a","title":"Step-up voltage converter - 3-11,5 V to 5, 8, 9 or 12 V, 1,5 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDC-DC boost converter with solder-jumper configuration\u003c\/li\u003e \u003cli\u003eGenerates 5 V, 8 V, 9 V, or 12 V output voltage\u003c\/li\u003e \u003cli\u003eInput voltage from 3 V to 11.5 V, current up to 1.5 A\u003c\/li\u003e \u003cli\u003eLED indicator for operating status\u003c\/li\u003e \u003cli\u003e1.2 MHz operating frequency enables a compact design\u003c\/li\u003e \u003cli\u003eOperates from −40 °C to +85 °C\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis DC-DC voltage converter boosts a lower input voltage to a higher, regulated output voltage. The module uses a switching regulator together with an inductor and diode to temporarily store energy from the input and provide it at the output with increased voltage. The 1.2 MHz switching frequency enables very small components and therefore an extremely compact design.\u003c\/p\u003e \u003cp\u003eThe output voltage is not set with a regulator but determined by solder jumpers A and B on the PCB. Depending on which points are connected with solder, one of four possible voltages is produced. The module is supplied from the factory configured to 12 V. An LED indicates during operation that the module is active.\u003c\/p\u003e \u003cp\u003eThe device is suitable wherever a battery or rechargeable battery needs to provide a higher operating voltage for other components, for example for LED circuits requiring more than the available battery voltage, or for microcontroller projects that require 9 V or 12 V. Operation with 3.7 V lithium cells is also possible and then provides the correspondingly reduced output current, depending on the selected voltage.\u003c\/p\u003e \u003cp\u003eIt is important that the input voltage always remains below the output voltage set by the solder jumper. Otherwise, voltage boosting cannot take place. Only the input and output connections are required for operation; the power supply is connected directly from outside.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe module is not intended for installation in household electrical circuits and is intended exclusively for prototyping, testing, and development purposes. Observe the polarity of the power connections. When working on or near an electrical installation, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Mini DC-DC Step-Up voltage converter - 5V \/ 8V \/ 9V \/ 12V, 1.5A\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998293401949,"sku":"F23107731","price":1.34,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/mini-dc-dc-step-up-spannungswandler-5v-8v-9v-12v-15a-funduino-5885521.png?v=1791496424"},{"product_id":"keypad-shield-mit-1602-display-fur-arduino-uno","title":"LCD Keypad Shield 1602 - 16x2 display, 5 buttons, for Arduino UNO","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Arduino UNO with 16*2-character LCD display and 5 buttons\u003c\/li\u003e \u003cli\u003eDisplay shows up to 32 characters simultaneously\u003c\/li\u003e \u003cli\u003eButtons enable user interaction without separate wiring\u003c\/li\u003e \u003cli\u003eAnalog inputs for all buttons on one pin\u003c\/li\u003e \u003cli\u003ePlugs directly into the Arduino pins; no soldering required\u003c\/li\u003e \u003cli\u003eI2C interface for the display reduces pin usage\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis shield combines an LCD display with button inputs to create a compact control unit for Arduino UNO. The 16*2-character display shows measurement values, menus, or status messages, while five buttons are used for navigation and selection. Since all buttons are read through a single analog input, the microcontroller's digital pins remain available for other functions.\u003c\/p\u003e \u003cp\u003eThe buttons generate different voltage values at the analog input, which the Arduino detects and distinguishes. The display communicates via I2C, using only two data lines. The circuit is already pre-wired on the shield, so no plugging or soldering is required.\u003c\/p\u003e \u003cp\u003eTypical applications include data loggers with live value display and control panels, controls for robotics projects with menu navigation, temperature and humidity measuring devices with calibration menus, or simple display panels in hobby electronics projects. An Arduino UNO with an attached shield and connected sensor quickly becomes a functional device for data acquisition and display.\u003c\/p\u003e \u003cp\u003eAn Arduino IDE for programming and familiarity with the Arduino environment are required, as both input channels (buttons and display) must be managed in the sketch. The shield fits only Arduino UNO and compatible boards with the same pin layout; adaptation is required for other Arduino variants or single-board computers.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe shield is not intended for operation in circuits with mains voltage and is designed exclusively for prototyping, testing, and development purposes. Before commissioning, check that all plugs are firmly seated and that no contacts are bent. If the circuit board is damaged or you have any doubts about its operational safety, consult a qualified electrician.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998298317149,"sku":"F23107306","price":4.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/keypad-shield-mit-1602-display-fuer-arduino-uno-funduino-6669731.png?v=1791495870"},{"product_id":"picoboy-mini-handheld","title":"Picoboy Mini handheld - RP2040, 1,3-inch display, USB-C","description":"\u003cp\u003e\u003cstrong\u003eLearn, Program, Play - The PicoBoy\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe PicoBoy is a powerful mini handheld measuring just 3 x 5 cm. It is suitable for learning to program, developing your own games, or simply playing. An introduction to programming with the Arduino environment and MicroPython can be found under\u003c\/p\u003e \u003cp\u003e \u003cstrong\u003e\u003ca title=\"https:\/\/www.picoboy.de\" href=\"https:\/\/www.picoboy.de\"\u003ehttps:\/\/www.picoboy.de\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ecan be found. Since the PicoBoy is compatible with the Raspberry Pi Pico and the Arduino environment, countless other tutorials, examples, and libraries can be found online to make programming easier.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical data\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1.3\" display with 128 x 64 pixels (SH1106)\u003c\/li\u003e \u003cli\u003ecompatible with the Raspberry Pi Pico thanks to the RP2040 microcontroller\u003c\/li\u003e \u003cli\u003e2 x 133 MHz ARM M0+\u003c\/li\u003e \u003cli\u003e2 MB flash\u003c\/li\u003e \u003cli\u003e264 KB RAM\u003c\/li\u003e \u003cli\u003eUSB-C interface for programming and data transfer\u003c\/li\u003e \u003cli\u003e5-way joystick\u003c\/li\u003e \u003cli\u003eSTK8BA58 accelerometer (now also usable in Python!)\u003c\/li\u003e \u003cli\u003e3 pre-installed games\u003c\/li\u003e \u003cli\u003ePower supply via USB-C or a CR2032 button cell\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eA PC or Mac and a USB-C cable are required for programming.\u003c\/li\u003e \u003cli\u003eThe PicoBoy can be programmed under Windows, Linux, and macOS. However, the tutorial only covers Windows.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eScope of delivery:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1x PicoBoy Mini handheld\u003c\/li\u003e \u003cli\u003e1x cleaning cloth\u003c\/li\u003e \u003c\/ul\u003e","brand":"Picoboy","offers":[{"title":"Default Title","offer_id":65998298349917,"sku":"F23109173","price":24.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/picoboy-mini-handheld-funduino-8193817.png?v=1791495873"},{"product_id":"dc-dc-step-down-spannungsregler-300w-bis-20a-6-40v-auf-1-2-36v-szbk07-kompatibel","title":"Step-down voltage regulator 300 W - 6-40 V to 1.2-36 V, 20 A","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSwitching DC-DC step-down converter for input voltages from 6 to 40 V\u003c\/li\u003e \u003cli\u003eOutput continuously adjustable between 1.2 and 36 V\u003c\/li\u003e \u003cli\u003eUp to 20 A output current, maximum power 300 W\u003c\/li\u003e \u003cli\u003eConstant-current and constant-voltage modes with automatic switching\u003c\/li\u003e \u003cli\u003eOutput voltage and current limit independently adjustable via precision trimmers\u003c\/li\u003e \u003cli\u003eScrew terminals for input and output, slide switch for safe control\u003c\/li\u003e \u003cli\u003eIntegrated heatsinks on both sides of the circuit board\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis step-down voltage regulator converts higher DC voltages into lower ones using a switched operating principle instead of simple linear losses. An inductor and a power transistor transfer energy in pulses, resulting in significantly lower heat loss than with linear regulators. This enables high currents of up to 20 A with a relatively compact heatsink.\u003c\/p\u003e \u003cp\u003eBoth parameters, the output voltage and maximum output current, can be adjusted independently using two trimmers. The module automatically switches between constant-voltage and constant-current operation, depending on which limit is reached first. This makes it ideal for charging batteries according to the usual profile: constant current up to the target voltage, followed by constant voltage until charging is stopped. The module is also suitable as a current source for LED strips or for generating adjustable supply voltages.\u003c\/p\u003e \u003cp\u003eThe input and output use screw terminals that also provide reliable connections with thicker cables. A slide switch enables quick switching off and on without disconnecting cables.\u003c\/p\u003e \u003cp\u003eThe maximum values of 20 A and 300 W can only be achieved with effective cooling. During continuous operation, the module should be operated well below these limits. At higher continuous loads, additional active cooling with a fan is required, as the existing heatsinks alone cannot dissipate the heat continuously at full load. Intended for prototypes and laboratory setups operated under appropriately controlled temperature conditions.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eAt currents above 10 A, the input and output areas can become significantly hot; avoid contact with hot surfaces and ensure sufficient air circulation. The module is intended exclusively for prototypes and test and development purposes and is not suitable for installation in the mains power system. Work on or near electrical installations must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x DC-DC Step-Down Module - 300W, 20A, 6-40V to 1.2-36V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998301200733,"sku":"F23108632","price":6.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/dc-dc-step-down-spannungsregler-300w-bis-20a-6-40v-auf-12-36v-szbk07-kompatibel-funduino-3532948.png?v=1791495502"},{"product_id":"elektromagnet-offnen-schliessen-ziehen-jf-0530b-5v-0-7a","title":"JF-0530B Electromagnet - 5 V, 0,7 A, opening and closing","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eElectromagnet with bistable switching behavior for opening, closing, and pulling\u003c\/li\u003e \u003cli\u003eOperating voltage 12 V DC\u003c\/li\u003e \u003cli\u003eHolding force and pulling force (see datasheet for exact values)\u003c\/li\u003e \u003cli\u003eSwitching frequency up to 5 Hz\u003c\/li\u003e \u003cli\u003eCompact plastic housing\u003c\/li\u003e \u003cli\u003eConnection via terminal screws\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis electromagnet switches between opening, closing, and pulling and requires 12 V DC voltage. The bistable switching principle stores its state without continuous current after the coil has been energized briefly. This eliminates heat generation at rest and significantly reduces power consumption compared with simple on-off magnets.\u003c\/p\u003e \u003cp\u003eThe magnet can be used wherever locks and barriers need to be automated. Examples include automatic door closing mechanisms for display cabinets or cupboards, electromechanical locking systems for access control, and roller shutter controls. The switching frequency of up to 5 Hz allows repeated switching without overloading.\u003c\/p\u003e \u003cp\u003eOperation requires a 12 V power source. The terminal screws accept flexible copper wires with a cross-sectional area within the standard range. The magnet's force depends on the respective model and must be planned according to the application's requirements.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe device is not a safety switch and must not be used in critical functions where unexpected activation could pose a safety risk. The product is intended exclusively for building prototypes and for testing and development purposes and must not be installed in household electrical circuits. If you have questions about integrating it into existing electrical installations, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1* Electromagnet Opening \/ Closing \/ Pulling JF-0530B 5V 0.7A\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998324793693,"sku":"F23106910","price":4.11,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/elektromagnet-oeffnen-schliessen-ziehen-jf-0530b-5v-07a-funduino-7001428.png?v=1791495532"},{"product_id":"datenlogger-mit-rtc-modul-fur-arduino-uno-mikrocontroller","title":"Data logger shield - RTC, SD up to 32 GB, for Arduino UNO","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eData logger shield for Arduino UNO with integrated real-time clock and SD card slot\u003c\/li\u003e \u003cli\u003eStores measurement data on SD cards up to 32 GB\u003c\/li\u003e \u003cli\u003eReal-time clock with battery backup retains the date and time\u003c\/li\u003e \u003cli\u003eI2C and SPI interfaces for sensors\u003c\/li\u003e \u003cli\u003eStacking capability allows multiple modules on one board\u003c\/li\u003e \u003cli\u003e3.3 V and 5 V power supply possible\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eA data logger with a real-time clock records and stores time-stamped sensor readings on SD cards. The module sits on the Arduino UNO and uses the board's existing digital and analog inputs without blocking them. The RTC component records the date and time even when the main board is without power, as long as the backup battery remains charged.\u003c\/p\u003e \u003cp\u003eThe real-time clock times all measurements and automatically adds a timestamp, allowing data series to be evaluated later. SD cards up to 32 GB store amounts of data that would not fit locally on the Arduino. Access is via the SPI interface, while external sensors are connected via I2C without running short of available pins.\u003c\/p\u003e \u003cp\u003eTypical applications include long-term measurements in hard-to-reach places such as attics or greenhouses, where manual readout is impractical. Weather monitoring with temperature, humidity, and pressure sensors benefits from uninterrupted time series. Data acquisition on rotating or moving objects is also possible, as the SD card can be removed and evaluated at any time.\u003c\/p\u003e \u003cp\u003eThe Arduino UNO must have an external power supply, and the libraries for RTC and SD card access must be available in the development environment. A preformatted SD card in FAT32 format is required for operation.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe backup battery of the real-time clock module must not be short-circuited or soldered. This module is not intended for installation in the household power circuit and is intended exclusively for building prototypes and for testing and development purposes. Work on or near electrical installations must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x data logger with RTC module for Arduino UNO microcontroller\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998334067037,"sku":"F23107384","price":3.67,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/datenlogger-mit-rtc-modul-fuer-arduino-uno-mikrocontroller-funduino-8667229.jpg?v=1791495911"},{"product_id":"lufter-5v-mit-jst-xh-2-54-stecker-30-x-30-x-7-mm","title":"Fan 30 x 30 x 7 mm - 5 V, JST-XH connector 2,54 mm","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAxial fan for 5 V power supply, 30*30*7 mm dimensions\u003c\/li\u003e \u003cli\u003eJST-XH connector (2.54 mm pitch) for direct connection to development boards\u003c\/li\u003e \u003cli\u003eAirflow for passive cooling of components and electronic modules\u003c\/li\u003e \u003cli\u003eLightweight, broadly compatible with standard plug connections\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eAn axial fan with a 5 V power supply is suitable wherever electronic components need to be actively cooled. The JST-XH connector fits directly onto the power connections of common microcontroller boards and expansion modules, so no additional connection hardware is required. The compact dimensions of 30 * 30 * 7 mm allow it to be installed in confined enclosures or on prototype layouts.\u003c\/p\u003e \u003cp\u003eThe fan impeller is driven by a DC motor and generates a continuous airflow in the opposite direction to the impeller rotation. The 5 V supply enables direct operation from the power rail of an Arduino, Raspberry Pi, or similar board, provided that sufficient current is available. If in doubt, use a separate power supply with sufficient current reserve. A PWM pin enables speed control via pulse-width modulation, if supported by the electronics.\u003c\/p\u003e \u003cp\u003eTypical applications include cooling regulator modules in robotics projects, managing heat dissipation during extended measurement series in climate chambers or test enclosures, and stabilizing the temperature of computer modules in compact setups. Laminar-flow demonstrations and ventilation of sensor protection chambers are also possible.\u003c\/p\u003e \u003cp\u003eFor operation, the available current at the 5 V pin must be at least equal to the fan's power consumption; refer to the datasheet or manufacturer's specifications. Do not use force when disconnecting the JST-XH connector; pull it out by the connector housing, not by the cable. Reversing the polarity will damage the motor; check the polarity on the board before connecting the fan.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe fan impeller rotates rapidly after being switched on and can cause injuries on contact. Keep fingers away during operation and cover the device with a protective grille if any parts remain accessible. Reversing the polarity can cause malfunction or damage; check the current direction before commissioning. This module is intended exclusively for prototypes, testing, and development purposes and is not suitable for installation in household electrical circuits.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998345142621,"sku":"F23110210","price":2.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/luefter-5v-mit-jst-xh-254-stecker-30-x-30-x-7-mm-funduino-8726620.png?v=1791495537"},{"product_id":"mini-mp3-player-mp3-tf-16p-v3-0-fur-mikrocontroller","title":"MP3-TF-16P V3.0 MP3 player - microSD up to 32 GB, serial","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSupports sampling rates (kHz): 8 \/ 11.025 \/ 12 \/ 16 \/ 22.05 \/ 24 \/ 32 \/ 44.1 \/ 48\u003c\/li\u003e \u003cli\u003eMP3-TF-16P V3.0\u003c\/li\u003e \u003cli\u003eDynamic range support: 90 dB\u003c\/li\u003e \u003cli\u003eSNR support: 85 dB\u003c\/li\u003e \u003cli\u003eSupports FAT16 and FAT32, microSD up to 32 GB\u003c\/li\u003e \u003cli\u003eWith multiple control modes (I\/O, serial mode, AD button control)\u003c\/li\u003e \u003cli\u003eCan be connected directly to a speaker\u003c\/li\u003e \u003cli\u003eSupported file formats: \u003cspan style=\"font-family: Arial, Verdana, Helvetica; font-size: 16px;\"\u003emp3, WAV, WMA\u003c\/span\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHelpful links:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/DFPlayer_Mini_SKU_DFR0299\" target=\"_blank\" data-link-type=\"external\" data-type=\"linkpicker\"\u003eInstructions (wiki.dfrobot.com)\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eScope of delivery:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1x Mini MP3 player, DFPlayer for microcontrollers\u003c\/li\u003e \u003cli\u003eAn SD card is not included\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998357234013,"sku":"FUN-1010563","price":3.11,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/mini-mp3-player-mp3-tf-16p-v30-fuer-mikrocontroller-funduino-3457450.png?v=1791496469"},{"product_id":"lautsprecher-5w-8ω-30x70-mm","title":"Speaker 5 W - 8 Ohm, 30 x 70 mm","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCompact speaker with 5 W output power\u003c\/li\u003e \u003cli\u003eImpedance: 8 ohms, frequency range: 20–20000 Hz\u003c\/li\u003e \u003cli\u003eDimensions: 30*70 mm, suitable for installation in small enclosures\u003c\/li\u003e \u003cli\u003eRectangular design with mounting holes on the sides\u003c\/li\u003e \u003cli\u003eCan be connected via solder pads or terminals\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis 5-watt speaker is suitable for installation in compact audio projects and devices with limited space. The 8-ohm impedance enables direct connection to common amplifier ICs and sound modules without requiring additional impedance matching. With dimensions of 30*70 mm, the component fits into narrow enclosures.\u003c\/p\u003e \u003cp\u003eThe component reproduces frequencies from 20 to 20000 Hz, providing an audible spectrum for speech and music. The rectangular design allows flexible positioning in project boxes. Connection is made via the provided solder pads or terminal contacts.\u003c\/p\u003e \u003cp\u003eApplications include warning devices with acoustic signals, portable audio toys, small amplifiers for testing, music tracks from microcontroller projects, and simple voice output systems. For a music-quality sound pressure level, the output is sufficient up to a distance of approximately two meters.\u003c\/p\u003e \u003cp\u003eNo power supply is required; the speaker operates exclusively using the output power of the connected amplifier. Ensure correct polarity when connecting it; overloading the amplifier with excessive voltage can lead to failures.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eEnsure correct polarity when connecting the speaker, as incorrect wiring may damage the component. This component is intended exclusively for building prototypes and for testing and development purposes. Work on or near electrical installations must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x speaker, 5W, 8Ω, 30x70 mm\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998372995421,"sku":"F23107409","price":1.84,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/lautsprecher-5w-8o-30x70-mm-funduino-4697307.png?v=1791495925"}],"url":"https:\/\/funduino.com\/en\/collections\/more.oembed?page=4","provider":"Funduino","version":"1.0","type":"link"}