WeMos D1 Mini V4.0 – ESP8266 WiFi Development Board

The WeMos D1 Mini V4.0 is a compact and powerful WiFi development board based on the ESP8266EX microcontroller. Designed for IoT and embedded projects, this board combines high processing power, built-in WiFi connectivity, and a small footprint, making it ideal for smart devices, automation systems, and rapid prototyping.

Fully compatible with the Arduino IDE, MicroPython, and NodeMCU (Lua), the WeMos D1 Mini V4.0 offers flexible programming options and a wide range of compatible shields for expansion. Its micro-USB interface allows easy programming and power supply, while the onboard CH340 USB-to-serial chip ensures stable communication with your computer.

Key Features:

• Based on ESP8266EX WiFi microcontroller

• Clock Speed: 80/160 MHz

• Flash Memory: 4MB

• Digital I/O Pins: 11 (with PWM, I²C, SPI support)

• Analog Input: 1 (10-bit, 0–3.3V range)

• Integrated 802.11 b/g/n WiFi with WPA/WPA2 support

• Operating Voltage: 3.3V (5V via micro-USB input)

• Micro-USB port for programming and power

• Compact size: 34.2mm x 25.6mm

• Supports Arduino IDE, NodeMCU (Lua), and MicroPython

Applications:

• IoT devices and smart home automation

• Wireless sensor networks

• Remote monitoring and control

• Prototyping WiFi-enabled projects

• Robotics and DIY electronics