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Overview and Specifications:

Product Attribute
Accessory Type : Extension Board
Compatible With : Arduino


80 MHz Processor / 4M Flash

FCC Certified ESP8266-12F Module

11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported (except for D0)

1 analog input (3.2V max input)

Micro USB connection

Power jack, 9-24V power input

Compatible with Arduino and NodeMCU

All IO pins are 3.3V and have interrupt/pwm/I2C/one-wire support except D0.

Package Includes:

1x WeMos D1 R2 Board ESP8266 Arduino NodeMCU Development Board