Equipped with the ESP8266 WiFi microcontroller, this D1 R2 development board offers powerful processing performance and stable 2.4GHz wireless connectivity for a wide range of IoT and smart home projects. Based on the D1 R2 layout, the board is designed for ease of use and rapid prototyping. It follows an Arduino UNO-style form factor, making it convenient to mount on standard shields and breadboards. Integrated CH340G USB-to-serial converter ensures reliable communication between the board and your computer. This allows simple firmware uploads, serial monitoring, and debugging over a standard USB connection. Fully compatible with NodeMCU firmware, enabling development with the Lua scripting language. This allows quick iteration, easy testing, and simplified coding for WiFi-based applications. Ideal as a WiFi IoT module, the board supports 802.11 b/g/n connectivity. It is suitable for wireless sensor networks, data logging, remote control, and various internet-connected devices. Color: Blue Material: PCB Package Contents: 1*development board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.