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The D1 R2 is a mini wifi board based on the ESP-8266EX. 11 digital input/output pins, all pins have interrupt/p… | Wifi, Arduino, Electronics technology
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Wemos D1 R2 V2.1.0 Wifi Uno Based Esp8266 For Arduino Nodemcu Compatible - Integrated Circuits - AliExpress
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Wireless WIFI Development Board ,WeMos D1 R2 WiFi Development Board based on ESP8266, Compatible for Arduino _ - AliExpress Mobile
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HiLetgo OTA WeMos D1 R2 CH340 WiFi Development Board ESP8266 ESP-12F For Arduino IDE UNO R3 : Electronics - Amazon.com
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OTA WeMos D1 R2 WiFi UNO based on ESP8266 ESP-12E for Arduino ModeMcu Compatible – ASA College: Florida
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