Wireless WIFI Development Board ,WeMos D1 R2 WiFi Development Board based on ESP8266, Compatible for Arduino _ - AliExpress Mobile
WeMos D1 R2 V2.1.0 NodeMCU WiFi ESP8266 Development Board Compatible Arduino UNO | eBay
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