WeMos D1 R2 V2.1.0 WiFi Uno Based integration of ESP8266 32Mb flash For Arduino Nodemcu Compatible

Product Description:
WeMos D1 R2 V2.1.0 WiFi Uno Based integration of ESP8266 32Mb flash
Description:
The D1 R2 is a WiFi capable ESP8266EX based development board in the form of
the Arduino UNO board format.
This board is compatible with the Arduino IDE and with NodeMCU.
Tutorials for each can be found in the resources section below.
The D1 R2 also features an on-board switching power supply which allows
you to power the board from a power supply up to 12V.
We offer a board similar to this called the Wemos D1 Mini that is much smaller in
size and breadboard-compatible.
SPECIFICATIONS:
Microcontroller: ESP8266EX
Operating Voltage: 3.3V
Digital I/O Pins: 11 (all I/O pins have interrupt/pwm/I2C/one-wire capability, except for D0)
Analog Input Pins: 1
Flash Memory: 4MB
On-Board Switching Power Supply:
Input Voltage Range: 9V to 12V
Output: 5V at 1A Max
Board Dimensions: 68.6mm x 53.4mm (2.701″ x 2.102″) / Long x Wide
Weight: 21.8g (0.769oz)
Package Contents:
1x WeMos D1 R2 V2.1.0 WiFi Uno Based integration of ESP8266