WeMos D1 Mini NodeMCU Arduino ESP8266 EX WiFi Development Board

ESP8266 ESP-12 USB WeMos D1 Mini WIFI Development Board D1 Mini NodeMCU IOT Board Based On ESP-8266EX 11 Digital Pins 3.3V

This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
a Micro USB connection
1 analog input(3.3V max input)