Wemos D1 WiFi UNO

The ESP-8266EX-based Espressif development platform, almost compatible with the Arduino UNO pins, can also use some shield modules designed for the classic Arduino UNO, This board is controlled by the ESP8266 chip (a 32-Bit processor) and has a larger flash memory compared to an Arduino Uno. It consists of 11 digital I/O pins and 1 analogue (input) pin. the board can be connected using a Micro-B type USB cable.