2 PCS ESP8266 WeMos D1 WiFi Board

Description:
The WeMos D1 Mini is an inexpensive ESP8266-based WiFi board that is low-profile but just as powerful as any NodeMCU or ESP8266-based microcontroller. The D1 Mini is incredibly versatile because it is inexpensive, WiFi-enabled, and fully compatible with the Arduino platform. WiFi ESP8266 Development Board WEMOS D1. WEMOS D1 is a WIFI development board based on ESP8266 12E. The functioning is similar to that of NODEMCU, except that the hardware is built resembling Arduino UNO. The D1 board can be configured to work on Arduino environment using BOARDS MANAGER. There is a USB connector, note that its a micro type and you can use this and also OTA for programming. It used the USB cable, it was the easiest way. The board can be pwered via the usb cable or you can plug in an external DC source.