LOLIN (Wemos) D1 mini (esp8266)

Lolin D1 mini is like a “little Arduino with wifi” for a great price. It’s based around the ESP8266.

• 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
• 1 analog input(3.2V max input)
• a Micro USB connection
• Esp8266 Wifi Microchip