WeMos D1 Mini NodeMcu Lua WIFI Arduino IOT Dev Based on ESP8266

The D1 mini is a mini wifi board based on ESP-8266EX. ESP-12F # 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0) # 1 analog input(3.3V max input) # a Micro USB connection # Compatible withArduino # Compatible with nodemcu Technical specs Microcontroller = ESP-8266EX Operating Voltage = 3.3V Digital I/O Pins = 11 Analog Input Pins = 1 Clock Speed = 80MHz/160MHz FLash = 4M bytes Length = 34.2mm Width = 25.6mm Weight = 10g Pin Function ESP-8266 Pin TX TXD TXD RX RXD RXD A0 Analog in(max 3.3V) A0 D0 IO GPIO16 D1 IO, SCL GPIO5 D2 IO, SDA GPIO4 D3 IO,Pull-up GPIO0 D4 IO,pull-up,LED GPIO2 D5 IO, SCK GPIO14 D6 IO, MISO GPIO12 D7 IO, MOSI GPIO13 D8 IO,pull-down, SS GPIO15 G Gound GND 5V 5V - 3V3 3.3V 3.3V RST Reset RST Programming The D1 mini has a micro USB for auto programming. Also you can programming it using OTA Warnings All IO is work at 3.3V.