Wemos D1 Mini Mk.4.0.0 Dev Board

ESP8266 WiFi development board compatible with the Arduino IDE, Micropython, NodeMCU, etc.

Breadboard-compatible.
11 digital and one analogue I/O (3.2V max).
The I/O pins support interrupt, PWM, I2C, and one-wire (except for D0).
LOLIN I2C port.
Supplied with three different sets of header pins/sockets.

Programmed and powered via the on-board USB-C connector and CH340 (UART) converter.

Operating Voltage - 3.3V
Digital I/O Pins - 11
Analog Input Pins 1(3.2V Max)
Clock Speed - 80/160MHz
Flash - 4M Bytes
Size - 34.2*25.6mm