{"product_id":"esp8266-esp-01-wifi-wlan-modul-fur-arduino","title":"ESP-01 Wi-Fi module - 3.3 V, serial interface","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWi-Fi module for microcontroller boards with a serial interface\u003c\/li\u003e \u003cli\u003eOperating voltage: 3.3 volts\u003c\/li\u003e \u003cli\u003eCommunication via AT commands or direct integration into sketches\u003c\/li\u003e \u003cli\u003eIntegrated microcontroller and Wi-Fi chip in a compact design\u003c\/li\u003e \u003cli\u003eAntenna connection via a wire jumper\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis Wi-Fi module connects microcontroller boards wirelessly to networks and the Internet. It operates at 3.3 volts, so a power supply must be sourced separately. When connecting it to 5-volt boards, a level shifter is required to adjust the logic levels.\u003c\/p\u003e \u003cp\u003eThe module communicates with the connected board via a serial interface. Sketches can control it using AT commands or use special libraries to access Wi-Fi directly from Arduino code. This eliminates the need for a separate network board, saving space and GPIO pins.\u003c\/p\u003e \u003cp\u003eThe integrated microcontroller independently handles network protocols and can also be programmed as a standalone unit. This allows for on-site automation without keeping the main controller switched on. Typical applications include humidity and temperature loggers with cloud connectivity, networked home automation, remote monitoring stations, and IoT projects with multiple distributed sensors.\u003c\/p\u003e \u003cp\u003eIn addition to the level shifter, operation requires a 3.3-volt power supply rated for at least 0.5 amps, antenna connections, and libraries or knowledge of AT commands. The IEEE 802.11b\/g\/n Wi-Fi standard and range are comparable to those of typical Wi-Fi routers, though obstacles significantly reduce the range.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThe module operates at 3.3 volts and must not be connected directly to 5-volt logic; a level shifter is required. This module is intended exclusively for building prototypes and for testing and development purposes. It is not suitable for installation in household electrical circuits. Consult a qualified electrician before use if you have questions about the power supply or antenna installation.\u003c\/p\u003e \u003ch4\u003eIncluded in delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x ESP8266 ESP-01 - Wi-Fi WLAN module for Arduino\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":65997958250845,"sku":"F23106655","price":2.66,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/esp8266-esp-01-wifi-wlan-modul-fuer-arduino-funduino-7363380.png?v=1791496061","url":"https:\/\/funduino.com\/en\/products\/esp8266-esp-01-wifi-wlan-module-for-arduino","provider":"Funduino","version":"1.0","type":"link"}