Integrated Design: This board integrates both ATmega328P and ESP8266 with 32Mb memory, offering a powerful dual-core solution for and IoT projects. USB-TTL Included: Comes with CH340G converter for easy connectivity and firmware uploads. Versatile Compatibility: Perfect for applications involving for , for NodeMCU, for WeMos, and other microcontroller environments. Enhanced Connectivity: Features built-in WiFi module, enabling your projects to connect to the internet or other network devices seamlessly. : Latest version with upgraded features for enhanced performance and reliability. USB-TTL converter: CH340G series Power output: 5V-800mA Power-on USB interface: 5V (maximum 500mA) Power-on VIN/DC jack: 9-24V voltage Power consumption: 5V800mA Working voltage: 5V Clock frequency: 16MHZ Working temperature:-40-125 Size:65x50mm Weight:about 21.8g Color:As Shown Material:PCB Package Contents: 1 * Development Boards 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.