Product highlights Onboard ESP32D4 MCU with 4 MB flash for reliable firmware storage and local processing on a single board. Integrated CH343P USBtoserial converter enables easy USB programming and serial communication without external adapters. Ceramic antenna provides a compact wireless solution suitable for embedded projects. Why you need this board Simplified development workflow: connect via USB and program directly, using the onboard USBtoserial interface. Ample flash for firmware and data: 4 MB of storage supports larger sketches and applications. Builtin wireless capability: the ceramic antenna supports wireless connectivity as part of the ESP32 platform. 23 practical use scenarios Rapid prototyping of ESP32based IoT devices that require wireless communication and straightforward programming. Wireless data logging or remote control projects where a compact development board with an integrated antenna is advantageous. Educational labs or DIY projects that illustrate ESP32 development, firmware deployment, and serial debugging with minimal setup.