ARCELI WeMos D1 R2 WiFi ESP8266 Development Board Compatible Arduino UNO Program by Arduino IDE

Description: WeMos D1 R2 WiFi ESP8266 Development Board Compatible Arduino UNO Program By Arduino IDE Since 2016.11th.Jan , this product will update to a new version, named: WeMos D1 R2. (If you buy it before 2016.11th.Jan , the board is still the old version) Since 2016.25th.Jan, We have the new version : WeMos D1 R2 in US warehouse. (If you buy it before 2016.25th.Jan , the board is still the old version) The D1 R2 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) 1 analog input(3.3V max input) A Micro USB connection A power jack, 9-24V power input. Compatible withArduino Compatible with nodemcu Getting Started Arduino Getting Started NodeMcu Getting Started 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 68.6mm Width 53.4mm Weight 25g Pin Function ESP-8266 Pin TX TXD TXD RX RXD RXD A0 Analog input, max 3.3V input A0 D0 IO GPIO16 D1. Package Included: 1x WeMos D1 R2 WiFi ESP8266 Development Board