Wemos D1 Mini Nodemcu Wifi Esp8266 Arduino Uno R3 Mega Nano

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 nodemcuTechnical specsMicrocontroller = ESP-8266EXOperating Voltage = 3.3VDigital I/O Pins = 11Analog Input Pins = 1Clock Speed = 80MHz/160MHzFLash = 4M bytesLength = 34.2mmWidth = 25.6mmWeight = 10gPinFunction ESP-8266 PinTXTXD TXDRXRXD RXDA0Analog in(max 3.3V)A0D0IO GPIO16D1IO, SCL GPIO5D2IO, SDA GPIO4D3IO,Pull-up GPIO0D4IO,pull-up,LED GPIO2D5IO, SCK GPIO14D6IO, MISO GPIO12D7IO, MOSI GPIO13D8IO,pull-down, SS GPIO15GGound GND5V5V -3V33.3V 3.3VRSTReset RSTProgrammingThe D1 mini has a micro USB for auto programming.Also you can programming it using OTAWarningsAll IO is work at 3.3V. 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