{"title":"Bluetooth","description":null,"products":[{"product_id":"hm-10-bluetooth-master-slave-modul-bt-4-0-ble-fur-ios","title":"HM-10 Bluetooth module - BLE 4.0, master or slave, 3,3 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth Low Energy module (BLE) for wireless communication over short distances\u003c\/li\u003e \u003cli\u003eDual-mode operation, configurable as master or slave\u003c\/li\u003e \u003cli\u003eRange of up to approximately 100 meters in open terrain\u003c\/li\u003e \u003cli\u003e3.3 V power supply, communication via serial interface (UART)\u003c\/li\u003e \u003cli\u003eCompact and energy-efficient thanks to BLE technology\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis Bluetooth Low Energy module enables wireless connections between microcontrollers, sensors, and other electronic devices. The module complies with the BLE standard (Bluetooth 4.0), which consumes significantly less energy than classic Bluetooth.\u003c\/p\u003e \u003cp\u003eDepending on the project, the module can be configured as a master (connection initiator) or as a slave (waits for requests). Communication with the connected microcontroller takes place via UART, a serial interface. Thanks to its 3.3 V power supply, the module is easily compatible with modern single-board computers and microcontrollers; however, a level shifter is required when connecting it to 5 V systems. With a range of up to 100 meters in open terrain, it is suitable for many indoor and outdoor applications.\u003c\/p\u003e \u003cp\u003eTypical applications include sensor networks in which multiple BLE nodes transmit their readings to a central unit, wireless control of motors or relays via a smartphone or a second board, and low-power IoT prototypes. In smart home applications, for example, room temperatures or door openers can be monitored and controlled wirelessly.\u003c\/p\u003e \u003cp\u003eOperation requires a suitable microcontroller or single-board computer with an available UART port. Depending on the requirements, additional components such as external antennas, batteries, or power supplies may be necessary. The range is significantly reduced inside enclosed buildings with many metal obstacles.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThis module is intended exclusively for building prototypes and for testing and development purposes and is not designed for installation in household electrical circuits. Ensure that the power supply is connected with the correct polarity. Any work on the electrical installation must be performed by a qualified electrician; if you have questions about commissioning, consult a qualified electrician before operation.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x HM-10 Bluetooth MASTER\/SLAVE Module BT 4.0 BLE (for iOS)\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997956809053,"sku":"F23106464","price":9.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/hm-10-bluetooth-masterslave-modul-bt-40-ble-fuer-ios-funduino-9889828.png?v=1791495595"},{"product_id":"bluetooth-modul-typ-hc-06","title":"HC-06 Bluetooth module - slave mode, UART, 3.3-6 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSerial Bluetooth module for wireless transmission via UART interface\u003c\/li\u003e \u003cli\u003eOperating voltage 3.3 to 6 V, current consumption approximately 20 mA during active operation\u003c\/li\u003e \u003cli\u003eSlave mode, pairs with an external master device (smartphone, PC, or another Bluetooth module)\u003c\/li\u003e \u003cli\u003eRange approximately 10 to 100 m (depending on the environment and receiver sensitivity)\u003c\/li\u003e \u003cli\u003eCommon module without an external antenna, preconfigured for 9600 baud\u003c\/li\u003e \u003cli\u003eConsumable item, can be connected directly to the power supply and TX\/RX of a microcontroller\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis Bluetooth module enables wireless serial communication between a microcontroller and mobile devices or computers. It operates in slave mode and receives connection requests from external devices. The module uses the host system's standard UART interface (serial interface) and translates the data into the Bluetooth protocol.\u003c\/p\u003e \u003cp\u003eThe module is powered with 3.3 to 6 V and draws approximately 20 mA during active operation. Since it operates as a slave, it must first pair with a higher-level Bluetooth device. A typical setup connects it to a smartphone or tablet, which can use the module as a serial interface through an app. The data rate is preset to 9600 baud at the factory and can be changed later.\u003c\/p\u003e \u003cp\u003eThe range is 10 to 100 meters under ideal conditions and depends on the environment, antenna design, and receiver. The module is suitable for applications such as remote-controlled robots with smartphone control, wireless sensor readout, wireless data loggers, or remote monitoring of simple devices using mobile terminals. In practice, the connection proves reliable once pairing has been established.\u003c\/p\u003e \u003cp\u003eAt least one microcontroller with an available UART interface or a compatible board onto which the module can be soldered or plugged in is required. If the host uses 5 V logic, a level shifter is required between TX and RX to ensure that the module's 3.3 V outputs are detected safely. Configuration is performed using AT commands and can still be adjusted after installation.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module is not intended for direct connection to the mains. It is intended exclusively for building prototypes and for testing and development purposes. Work on or in the immediate vicinity of an electrical installation must be carried out by a qualified electrician; if in doubt, contact a qualified electrician before commissioning.\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998305558877,"sku":"F23106816","price":7.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/bluetooth-modul-typ-hc-06-funduino-5346853.png?v=1791495502"},{"product_id":"bluetooth-modul-typ-hc-05","title":"HC-05 Bluetooth module - UART, 3.3-6 V, up to 100 m","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth module for wireless communication via serial interface\u003c\/li\u003e \u003cli\u003eOperating voltage 3.3 V to 6 V, operation with 5 V logic possible\u003c\/li\u003e \u003cli\u003eRange of up to 100 m in open space\u003c\/li\u003e \u003cli\u003eConfigurable via AT commands\u003c\/li\u003e \u003cli\u003eCurrent consumption of up to 45 mA in active mode\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe Bluetooth module connects microcontrollers and other devices wirelessly to smartphones, computers, or other Bluetooth receivers. The serial interface (UART) transmits data transparently through the wireless channel without the transmitting device needing to know the protocol.\u003c\/p\u003e \u003cp\u003eThe module operates as a slave and accepts incoming connections. It operates in the 2.4 GHz band, the standard frequency range for Bluetooth Classic. The operating voltage of 3.3 to 6 V makes it compatible with common microcontroller boards; when connected to 5 V logic, the module itself provides 3.3 V levels at the data output, so no level shifter is required.\u003c\/p\u003e \u003cp\u003eExample applications include wireless remote controls (model vehicles, robots), collecting data from distributed sensors without wiring, and connecting stationary devices to mobile user interfaces. In everyday project work, the module enables quick test setups without cabling between work areas.\u003c\/p\u003e \u003cp\u003eThe operating range of up to 100 m requires a clear line of sight; walls and metal parts significantly reduce it. Four wires are sufficient for commissioning (power supply, ground, Rx, Tx). Configuration is performed via AT commands, for example to change the device name or password; the default settings allow immediate operation.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module operates with 3.3 V logic levels; connecting it to inputs with 5 V standard requirements requires a level shifter or voltage divider. The device is not intended for installation in the household power circuit and may only be used for prototypes and testing and development purposes. Consult a qualified electrician before commissioning it in critical applications.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Bluetooth Module - Type \"HC-05\"\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998397112669,"sku":"F23107169","price":7.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/bluetooth-modul-typ-hc-05-funduino-6571059.png?v=1791496498"},{"product_id":"bluetooth-ble-modul-cc2541-vergleichbar-mit-hm10-ibeacon","title":"CC2541 Bluetooth module - BLE 4.0, UART, 3.3-5 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth Low Energy module with Texas Instruments CC2541 chip\u003c\/li\u003e \u003cli\u003eSerial UART interface for connecting to microcontrollers\u003c\/li\u003e \u003cli\u003eSupply voltage 3.6 to 6 V, internal 3.3 V logic\u003c\/li\u003e \u003cli\u003eConfiguration via AT command sets, compatible with HM-10 commands\u003c\/li\u003e \u003cli\u003eOperation as master or slave, range up to 60 meters\u003c\/li\u003e \u003cli\u003eBuilt-in meander antenna, standby current consumption 400 to 800 µA\u003c\/li\u003e \u003cli\u003eButton for configuration, pin for querying the connection status\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis Bluetooth Low Energy module wirelessly transmits data from the microcontroller to smartphones, tablets, and other BLE devices without requiring the controller itself to implement the protocol. The CC2541 chip establishes the wireless connection, while a serial interface handles control.\u003c\/p\u003e \u003cp\u003eData is sent to the module via the UART pins RXD and TXD and then forwarded wirelessly. The STATE pin indicates whether a connection is currently active. The supply voltage is between 3.6 and 6 V, while the internal logic operates at 3.3 V. With 5 V microcontrollers, the module's output levels must therefore be raised to 5 V using a level shifter, while the inputs can be connected directly to 5 V UART because the chip tolerates 5 V signals on RXD. At the standard baud rate of 9600 baud, the module provides transparent data transmission.\u003c\/p\u003e \u003cp\u003eConfiguration is performed via AT commands through the serial interface, for example to select the baud rate, device name, or operating mode as master or slave. A button on the board activates configuration mode. Typical applications include remote controls in which an app controls a device, reading sensor data on a smartphone, or exchanging data between two of these modules. With a range of up to 60 meters, the module is suitable for home automation or spatially distributed monitoring within an apartment or house.\u003c\/p\u003e \u003cp\u003eA BLE-capable counterpart such as a smartphone or tablet with a suitable app, or another BLE module, is required. In standby mode without an active connection, power consumption drops to 400 to 800 µA, making battery-powered applications possible.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe module is not suitable for installation in building power circuits and is intended exclusively for building prototypes and for testing and development purposes. The module will be damaged by voltages above 6 V or incorrect polarity, so check the power supply lines before connecting. Questions concerning electrical installations must be referred to a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Bluetooth module with BLE - CC2541, HM10 HM-10 \/ iBeacon\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65998412153181,"sku":"F23107402","price":5.77,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/bluetooth-ble-modul-cc2541-vergleichbar-mit-hm10-ibeacon-funduino-6114506.png?v=1791496546"},{"product_id":"digitaler-hifi-bass-audioverstarker-bluetooth-kompatibel","title":"Bluetooth 5.0 audio amplifier - 50 W at 4 ohms, bass filter","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital audio amplifier with Bluetooth connectivity for bass and low-frequency reproduction\u003c\/li\u003e \u003cli\u003eOutput power of up to 50 W into a 4-ohm load\u003c\/li\u003e \u003cli\u003eBluetooth 5.0 with aptX support for wireless audio transmission\u003c\/li\u003e \u003cli\u003eDigital signal processing with configurable bass filter\u003c\/li\u003e \u003cli\u003e3.5 mm jack input and RCA connectors for wired sources\u003c\/li\u003e \u003cli\u003ePower supply via USB-C or 12 V power adapter\u003c\/li\u003e \u003cli\u003eCompact design with integrated thermal management\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eA digital audio amplifier with Bluetooth connects music sources wirelessly or via cable to active subwoofers or bass monitors. The device processes audio signals digitally and outputs them at up to 50 W into four-ohm loads, which is sufficient for room applications with subwoofers or active speakers.\u003c\/p\u003e \u003cp\u003eThe Bluetooth 5.0 connection transmits audio losslessly with the aptX codec, while the built-in inputs also connect to headphone outputs or RCA devices. The bass filter can be adjusted via a menu to adapt low frequencies to the room or the speaker characteristics. For quick transitions between portable and stationary devices, the dual connectivity eliminates the need to reconnect cables.\u003c\/p\u003e \u003cp\u003eApplications include home theater setups with a separate subwoofer, portable sound systems for events, or music workstations that require precise near-field bass. The module also works as a preamplifier for multiple speakers in adjacent rooms, as several devices can use the same Bluetooth transmitter.\u003c\/p\u003e \u003cp\u003ePower is supplied either via USB-C (for mobile operation with power banks of up to approximately 3 A) or via the included 12 V power adapter (for stationary installation). If you want to operate the amplifier permanently with a subwoofer, use the power adapter; for outdoor use or in vehicles with a 12 V electrical system, no additional power supply is required. Speakers with an impedance of less than 4 ohms overload the output beyond its thermal limit.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe power adapter supplies 12 V DC and is intended exclusively for operating this device. This product is not intended for installation in household electrical circuits and is intended solely for building prototypes and for testing and development purposes. Work on or near electrical installations must be carried out by qualified electricians; if you have questions about safe commissioning, consult a qualified electrician before making any connections.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1 x Bluetooth-compatible amplifier\u003c\/li\u003e \u003cli\u003e1 x remote control\u003c\/li\u003e \u003cli\u003e1 x AC power cable\u003c\/li\u003e \u003cli\u003e1 x DC power cable\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66042951762269,"sku":"F23107805","price":15.07,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/digitaler-hifi-bass-audioverstaerker-bluetooth-kompatibel-funduino-6716740.png?v=1791487051"},{"product_id":"digitale-bluetooth-audioverstarkerplatine-stereo-2x-15w","title":"Bluetooth amplifier board - stereo 2 x 25 W, battery, 12 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital stereo amplifier board with Bluetooth 5.0 reception\u003c\/li\u003e \u003cli\u003eOutput power 2 * 25 W at 4 Ω load\u003c\/li\u003e \u003cli\u003eIntegrated lithium-ion battery with USB-C charging port\u003c\/li\u003e \u003cli\u003e12 V or battery power supply, external power supply possible\u003c\/li\u003e \u003cli\u003eCompact design for integration into enclosures or speaker projects\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis digital stereo amplifier board with Bluetooth 5.0 receives audio signals wirelessly and directly drives two speakers. The module combines the receiver, amplifier, and power management on a single board, without the need for additional components in between.\u003c\/p\u003e \u003cp\u003eThe integrated lithium-ion battery enables mobile operation and charges via USB-C, while a connection for external 12 V power sources is provided. When using an external power supply, there is no need to wait for the batteries to charge. The amplifier output of 2 * 25 W is sufficient for small to medium-sized near-field speakers, such as those in portable speakers or multimedia installations in rooms of up to approximately 20 square meters.\u003c\/p\u003e \u003cp\u003eApplications include portable Bluetooth speakers, wireless audio systems for trade fair setups, garden music, or use as the amplifier section for DIY speaker projects. The module also works reliably in robotic applications or interactive art installations with sound output. Longer operating times require an external power supply or regular battery charging.\u003c\/p\u003e \u003cp\u003eOperation requires a suitable speaker enclosure or an existing pair of speakers. The board requires space inside the enclosure and appropriate cable connections to the driver units. Bluetooth devices must be paired once before the music can be played.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe lithium-ion battery must not be exposed to extreme heat, moisture, or mechanical damage. The device is intended exclusively for building prototypes and for testing and development purposes and is not intended for installation in the household power circuit. Consult a qualified electrician if you have questions about the power supply or before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Digital Bluetooth audio amplifier board, stereo (2x 15W)\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66042955366749,"sku":"F23108386","price":12.45,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/digitale-bluetooth-audioverstaerkerplatine-stereo-2x-15w-funduino-6170174.png?v=1791486931"},{"product_id":"hifi-bluetooth-audio-verstarkermodul-tpa3116-dc-12-24v-2x50w-100w","title":"TPA3116 amplifier module - Bluetooth 5.0, 2x 50 W, 24 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital amplifier module for Bluetooth audio with the TPA3116 IC\u003c\/li\u003e \u003cli\u003eAmplifier output 2 * 50 W at 4 ohms, 2 * 100 W at 2 ohms\u003c\/li\u003e \u003cli\u003eBluetooth 5.0 with aptX support for stable wireless pairing\u003c\/li\u003e \u003cli\u003e24 V DC power supply, limited to this operating voltage\u003c\/li\u003e \u003cli\u003eInputs and outputs on solder pads, supplied without connectors\u003c\/li\u003e \u003cli\u003eCompact assembly for DIY audio devices and repairs\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis amplifier module with the TPA3116 chip is a component-level solution for wireless audio amplification. It receives audio signals via Bluetooth 5.0 and directly drives speakers up to their rated power without requiring additional audio preamplifiers.\u003c\/p\u003e \u003cp\u003eThe amplifier operates with 24 V DC and delivers up to 100 W of combined power to 4-ohm loads (50 W per channel) or up to 200 W to 2-ohm loads (100 W per channel). The operating voltage is fixed at this value; operation at other voltages is not intended. Pairing with Bluetooth sources uses the aptX codec standard, which is designed for low latency in wireless transmission.\u003c\/p\u003e \u003cp\u003eTypical applications include building portable or stationary Bluetooth speakers, retrofitting passive speaker columns, or repairing and modernizing older audio devices with Bluetooth connectivity. The compact design fits into small enclosures. One possible application is a DIY party box with two or more of these modules for multichannel operation in a custom wooden enclosure.\u003c\/p\u003e \u003cp\u003eSince the module is supplied without connectors, all connections (power supply, speakers, and optional audio input) must be soldered. A 24 V power supply with sufficient current capacity for the intended output must be sourced separately. A board without a power supply is typically used with a bench power supply or an industrial-grade power supply.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe module is not intended for installation in household electrical systems and is designed exclusively for building prototypes and for testing and development purposes. The 24 V power supply must be equipped with adequately rated protection (fuse or circuit breaker) to protect the module from damage in the event of faults. If you are unsure about the power supply or speaker matching, consult a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x TPA3116 3-channel audio amplifier board\u003c\/li\u003e \u003cli\u003e1x 3-pin cable\u003c\/li\u003e \u003cli\u003e5 x potentiometer caps\u003c\/li\u003e \u003cli\u003e1x set of screws\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66044392472925,"sku":"F23107802","price":36.81,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/hifi-bluetooth-audio-verstaerkermodul-tpa3116-dc-12-24v-2x50w100w-funduino-1544511.jpg?v=1791488893"},{"product_id":"audioempfanger-digitaler-verstarker-tda7492p-2x-50w-bluetooth-csr4-0","title":"TDA7492P amplifier module - 2x 25 W, Bluetooth 4.0, 12 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital audio receiver and 2*25-W amplifier on one board, Class-D design\u003c\/li\u003e \u003cli\u003eBluetooth control with a 3.5-mm jack input as an alternative\u003c\/li\u003e \u003cli\u003e12 V power supply; operation with a lead-acid battery or power adapter is possible\u003c\/li\u003e \u003cli\u003eTDA7492P amplifier IC with thermal shutdown\u003c\/li\u003e \u003cli\u003eBoard dimensions approximately 65*55 mm\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis digital amplifier receives audio signals via Bluetooth or through a 3.5-mm headphone jack and outputs 25 watts per channel to two 4- to 8-ohm speakers. The Class-D design operates with high efficiency and generates less heat than linear amplifiers, allowing for a compact design without elaborate cooling.\u003c\/p\u003e \u003cp\u003eIt operates from a 12-V power source, using either lead-acid batteries or external power adapters. The board provides connection holes for the speakers and power supply; the signal level can be adjusted via the module's input sensitivity. If the temperature becomes too high, the amplifier IC switches off automatically, protecting itself from damage.\u003c\/p\u003e \u003cp\u003eApplications include portable battery-powered speakers, notification systems in workshops or warehouses, sound output for smaller video installations, or upgrading intercom systems with an amplified microphone output. The module is particularly suitable where Bluetooth is sufficient without an additional amplifier board or where analog signal sources are already available.\u003c\/p\u003e \u003cp\u003eSpeakers with an impedance of at least 4 ohms are required for operation; at lower values, the output power decreases or protection circuits are triggered. The power supply must be sourced separately, as must a suitable power adapter if no battery is used. No development environment or programming is required.\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 prototyping, testing, and development purposes. Observe the polarity when connecting the power supply; at ambient temperatures above 65 °C, thermal protection circuits may be activated and limit the output power. When working near or on existing electrical installations, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Audio receiver digital amplifier TDA7492P, 50W+50W, Bluetooth CSR4.0\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66044930425181,"sku":"F23107559","price":17.91,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/audioempfaenger-digitaler-verstaerker-tda7492p-2x-50w-bluetooth-csr40-funduino-1198514.png?v=1791488427"},{"product_id":"audioreceiver-modul-5v-mit-4-modi-bluetooth-v2-1-ft-microsd-karte-micro-usb-fm","title":"Audio receiver module Bluetooth 2.1 - 5 V, microSD, FM, 4 modes","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAudio receiver module for 5 V power supply\u003c\/li\u003e \u003cli\u003eBluetooth version 2.1 with four operating modes\u003c\/li\u003e \u003cli\u003eReceiver for wireless audio sources\u003c\/li\u003e \u003cli\u003eLow power consumption in standby mode\u003c\/li\u003e \u003cli\u003eDirect connection to amplifiers or active speakers\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis audio receiver module enables wireless reception of audio signals via Bluetooth and operates with a supply voltage of 5 volts. It is powered directly by USB ports, battery holders, or standard power supplies and connects to smartphones, tablets, and other Bluetooth-enabled devices. The four different operating modes allow for different audio sources or operating scenarios without reconfiguration.\u003c\/p\u003e \u003cp\u003eThe module outputs its audio signal as an analog output to amplifiers or active speakers. This allows it to function as an interface between a Bluetooth source and existing speaker systems. Power saving is possible in standby mode, where power consumption is significantly reduced.\u003c\/p\u003e \u003cp\u003eThe module is suitable for portable music speakers, retrofitting car radios with Bluetooth functionality, stationary Hi-Fi systems without wireless connectivity, or DIY projects with Raspberry Pi and similar platforms. One specific example would be upgrading an old stereo system by adding Bluetooth reception.\u003c\/p\u003e \u003cp\u003eIn addition to the module, a power supply with a suitable 5 V output is required for operation. The audio output requires an amplifier or active speakers with audio inputs. The typical Bluetooth reception range is approximately ten meters in open space.\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 the household power circuit. When connecting external power supplies or audio amplifiers, ensure correct polarity and signal levels. If you are unsure about the integration, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x 5V audio amplifier module with 4 modes - Bluetooth V2.1, FT-\/microSD card, Micro-USB, FM\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66044943532381,"sku":"F23107627","price":5.94,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/audioreceiver-modul-5v-mit-4-modi-bluetooth-v21-ft-microsd-karte-micro-usb-fm-funduino-5584351.png?v=1791488423"},{"product_id":"hw-772-mp3-autolautsprecher-verstarker-decoderplatine-hw-772-mit-bluetooth-4-1","title":"HW-772 MP3 Amplifier Module - Bluetooth 4.1, 2x 10 W, 12 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCentralized audio decoding and amplification module for vehicle installations\u003c\/li\u003e \u003cli\u003eDecodes MP3 and WAV files directly from digital sources\u003c\/li\u003e \u003cli\u003eIntegrated power amplifier with up to 2*10 W output power\u003c\/li\u003e \u003cli\u003e12 V DC power supply, also configurable for use with 24 V systems\u003c\/li\u003e \u003cli\u003eUSB or memory card connection, with control via a 3-button interface\u003c\/li\u003e \u003cli\u003eSelectable mono or stereo output for direct speaker operation without additional amplification\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis car speaker amplifier with an integrated decoder processes audio files directly in the vehicle, without the need to connect external playback devices. The module decodes MP3 and WAV formats and drives speakers directly, reducing the space required in the vehicle.\u003c\/p\u003e \u003cp\u003ePower is supplied by the vehicle's 12 V electrical system. With up to 2*10 W output power, the module is sufficient for mid-range vehicles and simple installations; an external power amplifier is required for higher demands. Operation is controlled by three buttons for playback, volume, and track changes.\u003c\/p\u003e \u003cp\u003eAudio sources are memory cards (SD, microSD) or USB connections. Mono or stereo output can be selected depending on the vehicle configuration. The module fits standard compartment applications and does not require a separate power supply system in addition to the vehicle's electrical system.\u003c\/p\u003e \u003cp\u003eInstallation is limited to vehicles with a 12 V electrical system; consult the manufacturer regarding 24 V systems. Vehicles with factory-installed safety wiring or active antenna systems may require additional level converters or isolators. MP3 and WAV files must be transferred to the memory card or USB flash drive before use; file management on the module itself is limited to the three buttons.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThis module is not intended for connection to household electrical installations and is exclusively intended for constructing vehicle audio prototypes and for testing and development purposes. Work on or near vehicle electronics must be carried out by qualified electricians; if in doubt, consult a qualified electrician before commissioning. Ensure correct polarity when connecting the power supply; reverse polarity will damage the module.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x HW-772 MP3 car speaker amplifier \/ decoder board HW-772 with Bluetooth 4.1, including remote control\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045355917661,"sku":"F23107784","price":3.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/hw-772-mp3-autolautsprecher-verstaerker-decoderplatine-hw-772-mit-bluetooth-41-funduino-2246827.png?v=1791489048"},{"product_id":"hc-08-modul-cc2540-bluetooth-4-0-kompatibel","title":"HC-08 Bluetooth module - CC2540, BLE 4.0, UART, 3.3 V","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth Low Energy module for low-power wireless communication\u003c\/li\u003e \u003cli\u003eCompatible with Bluetooth 4.0 and later versions\u003c\/li\u003e \u003cli\u003eOperating voltage: 3.3 V\u003c\/li\u003e \u003cli\u003eSerial interface (UART) for control\u003c\/li\u003e \u003cli\u003eIntegrated antenna with stable range\u003c\/li\u003e \u003cli\u003eCompact design for easy integration into prototypes\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe Bluetooth Low Energy module enables wireless communication via the Bluetooth 4.0 standard, allowing it to communicate with modern smartphones, tablets, and other compatible devices. The module uses a special energy-efficient wireless protocol that enables battery-powered systems to operate for extended periods.\u003c\/p\u003e \u003cp\u003eThe module is controlled via the serial UART interface and requires an operating voltage of 3.3 V. When connecting it to 5 V logic systems, a level shifter is required to prevent damage to the module. The integrated antenna provides reliable range for typical applications in homes or offices.\u003c\/p\u003e \u003cp\u003eApplications include remote controls for small robots or model vehicles, monitoring sensor data on mobile devices, portable devices with wireless access to external data sources, and communication between prototypes without cabling. With its low power consumption, the module is particularly suitable for battery-powered applications where long operating times are important.\u003c\/p\u003e \u003cp\u003eNo additional accessories are required for operation apart from a power supply and connecting wires. The module is configured using AT commands via the serial interface. The circuit diagrams should be checked in advance to rule out any mix-ups involving the voltage levels.\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 suitable for installation in household electrical circuits. Ensure that the power supply polarity and the voltage levels are correct when connecting the module to other components. If anything is unclear, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x HC-08 module - CC2540, Bluetooth 4.0 compatible\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045612818781,"sku":"F23105904","price":9.81,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/hc-08-modul-cc2540-bluetooth-40-kompatibel-funduino-6333380.png?v=1791490080"},{"product_id":"bluetooth-audiomodul-5v-stereo","title":"Bluetooth Audio Module - Stereo 2 x 3 W, 5 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth audio module for wireless playback of music and speech\u003c\/li\u003e \u003cli\u003e5 V operating voltage, directly connectable to microcontroller boards\u003c\/li\u003e \u003cli\u003eStereo output with up to 2*3 W of power\u003c\/li\u003e \u003cli\u003eI2C and serial interface for control\u003c\/li\u003e \u003cli\u003eIntegrated lithium battery for powering the Bluetooth chip\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis Bluetooth audio module enables wireless playback of audio content through speakers or headphones. The receiver connects wirelessly to smartphones, tablets, or other Bluetooth transmitters and outputs the signal without additional wiring.\u003c\/p\u003e \u003cp\u003eThe 5 V operating voltage allows direct connection to common microcontroller boards such as Arduino or similar systems. The I2C or serial interface allows you to adjust the volume, change tracks, or query the pairing status. The stereo output delivers up to 2*3 W of power, which is sufficient for small to medium-sized speakers or headphones in your project.\u003c\/p\u003e \u003cp\u003ePossible applications range from music playback in robotics projects and voice output in smart home prototypes to audio feedback in interactive installations. The integrated battery of the Bluetooth chip requires occasional recharging but buffers brief power interruptions.\u003c\/p\u003e \u003cp\u003eSpeakers or headphones with a suitable connector are required for operation. The typical range is 10 to 20 meters, depending on obstacles and sources of interference in the surroundings. Connection is made via pin headers or screw terminals, depending on the model variant.\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 integration into 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 connection to power supply units, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Bluetooth audio module, 5V, stereo\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045626089821,"sku":"F23105764","price":3.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/bluetooth-audiomodul-5v-stereo-funduino-3839741.jpg?v=1791489749"},{"product_id":"digitales-bluetooth-verstarkermodul-30w-dy-ap3001-dc-8v-24v-mono","title":"DY-AP3001 Amplifier Module - Bluetooth 5.0, 30 W, 8-24 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital audio amplifier module with 30 W output power\u003c\/li\u003e \u003cli\u003eBluetooth 5.0 for wireless audio sources\u003c\/li\u003e \u003cli\u003eInputs for line-in and optical TOSLINK signals\u003c\/li\u003e \u003cli\u003eEnergy-efficient digital amplification with Class-D output stage\u003c\/li\u003e \u003cli\u003eConnection to a 24 V power supply required\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis digital amplifier module combines Bluetooth functionality with a compact design for small to medium-sized speakers and active systems. It receives audio signals wirelessly via Bluetooth 5.0 and amplifies them to up to 30 W of output power, switchable between stereo and mono. Two wired inputs are also available: a line-in connection for analog sources and an optical input compliant with the TOSLINK standard for digital audio signals from computers or other devices.\u003c\/p\u003e \u003cp\u003eThe Class-D amplifier technology operates with high efficiency and low power consumption. An external 24 V power supply is required because the module cannot be powered via USB. The device automatically becomes ready after being switched on and updates its firmware wirelessly.\u003c\/p\u003e \u003cp\u003eThe module is suitable for multimedia speakers, active speakers in home office setups, small PA systems for events, or as an upgrade for passive speakers. It is particularly useful where multiple audio signals need to be combined without cables, such as switching between smartphone music via Bluetooth and a video conference from a computer via an optical signal.\u003c\/p\u003e \u003cp\u003eFor operation, a separate 24 V power supply with adequate current capacity must be provided. The optical input socket requires compatible digital audio sources. An external power supply connection socket is not included.\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 intended for installation in the household power circuit. The external power supply must comply with the module's specifications and be protected against short circuits. If you are unsure about the power supply or if there is any damage, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cp\u003e1x\u0026nbsp;DY-AP3001 digital amplifier module, DC 8V-24V, mono sound\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045626581341,"sku":"F23105769","price":3.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/digitales-bluetooth-verstaerkermodul-30w-dy-ap3001-dc-8v-24v-mono-funduino-9960355.png?v=1791489860"},{"product_id":"xyw-wrbt-bluetooth-5-0-audio-empfanger-mit-fernbedienung","title":"XYW-WRBT audio receiver - Bluetooth 5.0, 3.5 mm jack, remote control","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth audio receiver with Bluetooth 5.0 standard\u003c\/li\u003e \u003cli\u003eRemote control for volume adjustment and playback control\u003c\/li\u003e \u003cli\u003e3.5 mm jack output for connecting to amplifiers or active speakers\u003c\/li\u003e \u003cli\u003eBattery or USB power supply possible\u003c\/li\u003e \u003cli\u003eRange of up to 10 meters in open space\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis Bluetooth audio receiver enables wireless music playback from smartphones, tablets, or computers on existing audio systems. The Bluetooth 5.0 standard provides a reliable connection over a distance of approximately 10 meters and works with all common devices that support Bluetooth audio.\u003c\/p\u003e \u003cp\u003eThe receiver converts the Bluetooth signal into an analog audio signal, which is transmitted via the 3.5 mm jack output to an amplifier, active speaker system, or AV receiver. The included remote control allows you to adjust the volume and control playback without having to pick up the source device.\u003c\/p\u003e \u003cp\u003eThe receiver can be used wherever existing audio systems without Bluetooth need to be upgraded, such as in living rooms with older amplifiers, in offices for wireless music while working, or as a simple audio module in a car sound system. Art installations and restaurants can also benefit from the flexible placement of the music source.\u003c\/p\u003e \u003cp\u003ePower is supplied either via a USB cable or two AA batteries; both options are included. The range decreases noticeably due to walls and obstacles, so the transmitter and receiver should operate in the same room or with a direct line of sight.\u003c\/p\u003e \u003ch3\u003eSafety Information\u003c\/h3\u003e \u003cp\u003eThe device is intended exclusively for testing and development purposes as well as private use. Power must be supplied exclusively via USB or batteries; connection to the mains power supply is not permitted. Consult qualified electricians if you have questions about integrating the device into speaker or amplifier systems.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x XYW-WRBT Bluetooth 5.0 audio receiver with remote control\u003c\/li\u003e \u003cli\u003eNote: Cable \/ power adapter \/ battery (lithium\/CR2025) not included!\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045637034333,"sku":"F23107991","price":4.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/xyw-wrbt-bluetooth-50-audio-empfaenger-mit-fernbedienung-funduino-4113907.jpg?v=1791489916"},{"product_id":"bluetooth-audioempfanger-4-1-decoderboard-xy-bt-mini","title":"XY-BT-Mini Bluetooth audio receiver - 4.1, 3.5 mm jack, 5 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth audio receiver for wireless playback of music content on amplifiers or active speakers\u003c\/li\u003e \u003cli\u003eDecodes A2DP audio signals with output via a 3.5 mm jack or 4-pin XLR connector\u003c\/li\u003e \u003cli\u003ePowered via a 5 V USB socket; can also be operated as a mobile device with a battery\u003c\/li\u003e \u003cli\u003eRange of up to 10 meters in open space, with a secure connection according to Bluetooth 4.1\u003c\/li\u003e \u003cli\u003eNo additional connections or control inputs required; fully automatic operation from power-on to playback\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eA Bluetooth audio receiver wirelessly decodes music data from smartphones and tablets and feeds it into existing stereo equipment. The board processes A2DP audio signals, thereby separating the wireless connection from the audio output and enabling supported audio amplifiers and passive speaker systems to be retrofitted without modifying their electronics.\u003c\/p\u003e \u003cp\u003eOperation requires a 5 V DC power supply via USB. Battery-powered solutions are automatically detected and connected directly after being connected to a buffered 5 V power supply, so no manual pairing is required after switching on. The range of approximately 10 meters is sufficient for living room setups, but falls significantly short of long-range wireless standards.\u003c\/p\u003e \u003cp\u003eTypical applications include adding Bluetooth reception to older stereo systems, wireless music playback in hobby workshops or offices, and integration into DIY audio systems with an external power supply. A mobile device can connect to multiple boards; conversely, each board can accept only one transmitter at a time.\u003c\/p\u003e \u003cp\u003eThe board is supplied with standard connection options. Depending on the application, a separate USB power adapter must be obtained if continuous operation from a wall outlet is not available. The audio quality corresponds to the Bluetooth specification and is therefore below that of lossless wired transmission.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe board is not intended for connection to the household mains supply or for installation in machines or power systems. It is intended exclusively for prototype construction and testing and development purposes. Work on power supplies and high-frequency systems requires consultation with a qualified electrician before commissioning if anything is unclear.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Bluetooth audio receiver 4.1 \/ decoder board (XY-BT-Mini)\u003c\/li\u003e \u003cli\u003e1x infrared remote control\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045640442205,"sku":"F23107743","price":2.53,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/bluetooth-audioempfaenger-41-decoderboard-xy-bt-mini-funduino-1047640.png?v=1791490435"},{"product_id":"mini-bluetooth-audioverstarker-ct14-5w-5w","title":"CT14 Bluetooth audio amplifier - 2x 5 W, 5 V, 3,5 mm jack","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCompact audio amplifier with Bluetooth connectivity and 5 W output power per channel\u003c\/li\u003e \u003cli\u003eStereo operation with two independent channels\u003c\/li\u003e \u003cli\u003e5 V operating voltage via USB Micro socket\u003c\/li\u003e \u003cli\u003e3.5 mm jack input for wired sources\u003c\/li\u003e \u003cli\u003eIntegrated volume control\u003c\/li\u003e \u003cli\u003eSuitable for mono bass speakers in rooms up to approximately 20 m²\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eA compact Bluetooth audio amplifier with a total output power of 10 W drives speakers or headphone outputs. The two channels, each providing 5 W of power, operate independently, enabling both stereo playback and connection to separate mono applications.\u003c\/p\u003e \u003cp\u003eThe device connects wirelessly to smartphones, tablets, or other Bluetooth audio devices. At the same time, a 3.5 mm jack input is available for connecting wired audio sources. The volume is controlled using an integrated potentiometer. This also allows already amplified signals or headphone outputs to be adjusted to the correct level.\u003c\/p\u003e \u003cp\u003eApplications can be found wherever portable or flexible audio output is needed. A portable Bluetooth radio can be created by combining the module with a small passive speaker. In projects with single-board computers or microcontroller boards, the module can be used for wireless audio output without having to build additional amplifier circuits. The amplifier also reliably amplifies weak headphone outputs.\u003c\/p\u003e \u003cp\u003eThe 5 V power supply is provided via a USB Micro socket, allowing standard USB power supplies or power banks to be used as the power source. An appropriately dimensioned power supply is required for operation. The output power of 5 W per channel limits the device for larger room sound reinforcement; for areas exceeding approximately 20 m², additional external amplifiers are required.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe device is not intended for connection to or use as part of an electrical installation. It is intended exclusively for building prototypes and for testing and development purposes. If you have questions about correct integration into larger systems, particularly when using power supplied from mains-connected sources, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Mini Bluetooth audio amplifier CT14, 5W+5W\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045641982301,"sku":"F23107638","price":3.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/mini-bluetooth-audioverstaerker-ct14-5w5w-funduino-1622449.png?v=1791490621"},{"product_id":"audioverstarker-3w-ca-6928-5v-mit-bluetooth","title":"CA-6928 Audio Amplifier - 3 W at 4 Ohms, 5 V, Bluetooth","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAudio amplifier for Bluetooth speakers and portable audio devices\u003c\/li\u003e \u003cli\u003eOutput power of 3 watts at a 4-ohm load\u003c\/li\u003e \u003cli\u003e5 V DC power supply\u003c\/li\u003e \u003cli\u003eIntegrated Bluetooth module for wireless audio sources\u003c\/li\u003e \u003cli\u003eCA6928 chip with compact assembly\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThis 3-watt audio amplifier with a Bluetooth module wirelessly connects smartphones, tablets, and other devices to speakers or headphones. The integrated chip design eliminates the need for additional components, keeping the circuit layout clear.\u003c\/p\u003e \u003cp\u003ePower is supplied at 5 volts, as provided by USB ports or standard power supplies. With a 4-ohm speaker, the amplifier delivers 3 watts of output power, sufficient for desktop and tabletop devices in rooms of up to 20 square meters. Higher output levels require an additional amplifier.\u003c\/p\u003e \u003cp\u003eApplications include portable Bluetooth speakers, small home theater systems, ambient sound systems in workshops or storage rooms, and audio amplification for projections. The compact design allows installation in confined enclosures.\u003c\/p\u003e \u003cp\u003eIn addition to the audio amplifier, a 5-volt power supply is required for operation. A power supply rated at least 500 mA is recommended to prevent distortion caused by voltage drops. The speakers must be rated for 4 or 8 ohms.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe 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 near electrical installations must be carried out by a qualified electrician; check all connections before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x CA-6928 JL IC audio amplifier, 5V with Bluetooth\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045662855517,"sku":"F23107664","price":3.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/audioverstaerker-3w-ca-6928-5v-mit-bluetooth-funduino-8048457.png?v=1791492470"},{"product_id":"beacon-hm-10-bluetooth-modul-v4-0-bt-4-0-ble","title":"HM-10 Bluetooth Module - BLE 4.0, 3.3 V, up to 100 m","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBluetooth module for wireless communication according to the BLE 4.0 standard\u003c\/li\u003e \u003cli\u003eRange of up to 100 m outdoors and up to 50 m indoors\u003c\/li\u003e \u003cli\u003eOperating voltage of 3.3 V, low power consumption of under 10 µA in sleep mode\u003c\/li\u003e \u003cli\u003eCommunication with the microcontroller via a UART interface\u003c\/li\u003e \u003cli\u003eBeacon function for presence and proximity detection\u003c\/li\u003e \u003cli\u003eCompact design on a small circuit board, easy to mount on prototypes\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct Description\u003c\/h3\u003e \u003cp\u003eThe Bluetooth module with BLE 4.0 standard enables wireless data transmission over short to medium distances. Outdoors, the module reaches up to 100 m; indoors, its range is limited to approximately 50 m by walls and other obstacles. This makes the module suitable for applications in individual rooms or open areas such as gardens, but not for connections across multiple floors or over large open spaces without a line of sight.\u003c\/p\u003e \u003cp\u003eCommunication takes place serially via UART (RS232 logic), enabling direct connection to microcontrollers with a corresponding interface. The 3.3 V operating voltage means that the module can only be connected to 5 V boards via a level shifter. In sleep mode, the module consumes less than 10 µA, enabling battery-powered projects to operate for extended periods.\u003c\/p\u003e \u003cp\u003eThe module can function as a beacon to signal presence or detect proximity. Typical applications include portable trackers in backpacks or vehicles that report their position to a central station, or door sensors that report when a person enters a room. The module can also be used as an interface between IoT devices in the home when they need to communicate wirelessly with a smartphone or tablet.\u003c\/p\u003e \u003cp\u003eOperation requires an external 3.3 V power supply and a serial connection to the microcontroller. The module's firmware is configured using AT commands, so no additional programming environment is required. For use in battery systems, a suitable power management circuit for managing the power supply is recommended.\u003c\/p\u003e \u003ch3\u003eSafety Notice\u003c\/h3\u003e \u003cp\u003eThe module uses 3.3 V logic levels and must not be connected directly to 5 V outputs. This module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for installation in household electrical circuits or devices with mains voltage.\u003c\/p\u003e \u003ch4\u003eScope of Delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1* Beacon HM-10 Bluetooth Module - V4.0, BT 4.0 BLE\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045665313117,"sku":"F23106954","price":11.72,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/beacon-hm-10-bluetooth-modul-v40-bt-40-ble-funduino-2075344.png?v=1791491060"},{"product_id":"xh-m314-tpa3118-2x30w-bluetooth-verstarker-empfanger","title":"XH-M314 amplifier module - TPA3118, 2x 30 W, Bluetooth 5.0","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTwo-channel amplifier module with 2*30 W output power\u003c\/li\u003e \u003cli\u003eBluetooth 5.0 for wireless audio sources\u003c\/li\u003e \u003cli\u003eDigital inputs for line-in and optical connection (SPDIF)\u003c\/li\u003e \u003cli\u003e12 to 24 V DC power supply\u003c\/li\u003e \u003cli\u003eAmplifier IC with integrated switching regulator\u003c\/li\u003e \u003cli\u003eDimensions: 110 * 75 * 35 mm with heatsink\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis two-channel amplifier module amplifies audio signals to 30 W per channel, allowing it to drive active speakers or speakers with an external amplifier. Available audio sources include Bluetooth 5.0, an analog line-in with a 3.5 mm jack socket, and an optical digital connection (SPDIF). Selection is made directly on the module; a switching regulator in the IC steps down the operating voltage from the 12 to 24 V DC range.\u003c\/p\u003e \u003cp\u003eFor home cinema applications or flexible multi-room systems, the module can be connected to the audio signals of single-board computers, streaming boxes, or sound cards. The wide voltage range also makes the amplifier suitable for automotive applications or systems with decentralized power supplies. Bluetooth eliminates the need for cabling, while the wired inputs allow direct connection without pairing.\u003c\/p\u003e \u003cp\u003eThe module requires a stable 12 to 24 V DC power supply with a current rating of at least 3 to 5 A, depending on the selected output load and gain. The speaker outputs provide uncompensated voltage signals and are high-impedance, so only speakers with integrated power amplifiers or external passive speakers with an impedance of at least 4 to 8 ohms are suitable. When operating via Bluetooth, the range for mobile devices is typically limited to 10 to 20 meters, depending on the surrounding conditions.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThis module is intended exclusively for building prototypes and for testing and development purposes; it is not suitable for permanent integration into household electrical circuits. Work on the power supply and on voltages above 50 V should be delegated to a qualified electrician. If you are unsure about the power supply dimensions or matching the speaker impedance, consult a qualified electrician before commissioning.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x XH-M314 TPA3118 2x30W Bluetooth amplifier \u0026amp; receiver\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045668360541,"sku":"F23108239","price":9.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/xh-m314-tpa3118-2x30w-bluetooth-verstaerker-empfaenger-funduino-5450947.png?v=1791491125"},{"product_id":"master-esp32-2-8-zoll-smart-display-v3-wifi-bluetooth-usb-c-st7789-arduino-lvgl","title":"ESP32 Smart Display V3 2.8 inch - 320x240 touchscreen, USB-C, various ESP32 modules","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e2.8-inch touchscreen with integrated ESP32 microcontroller\u003c\/li\u003e \u003cli\u003e320x240 pixel resolution, capacitive touchscreen\u003c\/li\u003e \u003cli\u003eWi-Fi and Bluetooth for wireless communication\u003c\/li\u003e \u003cli\u003eUSB-C port for power supply and data transfer\u003c\/li\u003e \u003cli\u003eInternal battery with charging function\u003c\/li\u003e \u003cli\u003ePreinstalled firmware with visual programming interface\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis ESP32-based display combines a powerful microcontroller with a large touchscreen in a compact control unit. The integrated processor allows you to connect sensors, establish wireless data connections, and process user input directly, without requiring a separate controller board. Wi-Fi and Bluetooth enable networking with other devices, IoT platforms, or smartphones.\u003c\/p\u003e \u003cp\u003eThe display uses capacitive touch detection and can be controlled via the preinstalled programming interface. The USB-C connection is used both for power supply and for programming and exchanging data with a computer. An integrated battery enables operation without a constant external power supply, so frequent charging should be expected during the development phase.\u003c\/p\u003e \u003cp\u003eTypical applications include simple data visualizations, wireless control interfaces for IoT devices, portable measurement device interfaces, or prototypes of smart home control panels. The range of available sizes allows you to choose between compact and large-format variants depending on the available space and viewing distance.\u003c\/p\u003e \u003cp\u003eA computer with a USB port is required for programming. The firmware and development tools are open source and follow the usual standards for ESP32 systems. Viewing angle and brightness are typically limited by LED display standards; readability decreases in unfavorable lighting conditions or at extreme viewing angles.\u003c\/p\u003e \u003ch3\u003eSafety information\u003c\/h3\u003e \u003cp\u003eThe device is not intended for installation in household electrical circuits. It is intended exclusively for prototype development and testing and evaluation purposes. Professional expertise is required when working on or directly near a property's electrical installation; consult a qualified electrician before commissioning if anything is unclear.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cp\u003e1 x ESP32 development board with 2.8-inch TFT touchscreen\u003c\/p\u003e","brand":"Funduino","offers":[{"title":"ESP32E","offer_id":66045682155869,"sku":"F23107806","price":23.07,"currency_code":"EUR","in_stock":true},{"title":"ESP32-WROOM-32","offer_id":66045722886493,"sku":"F23107806.1","price":23.07,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/master-esp32-28-zoll-smart-display-v3-wifi-bluetooth-usb-c-st7789-arduino-lvgl-funduino-3252862.png?v=1791487992"}],"url":"https:\/\/funduino.com\/en\/collections\/bluetooth.oembed","provider":"Funduino","version":"1.0","type":"link"}