WeMos D1 Mini ESP8266 ESP-12 NodeMcu Lua WIFI CH340G Development Board Antenna
WeMos D1 ESP-12 Board. Open Tools → Board: xxx → Boards Manager and install esp8266 by ESP8266. Before you use miniD1 boards, you need setup CH340g driver. This is D1 mini, it is a mini WIFI board based on ESP-8266EX.