This is WeMos ESP8266 D1 R2 V2.1.0 Wi-Fi Development Board. The WeMos D1 is an ESP8266 Wi-Fi-based board that uses the Arduino layout with an operating voltage of 3.3V. The board is controlled by the ESP8266 chip (a 32Bit processor) and has a larger flash memory compared to an Arduino Uno.
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
