Development board model: ESP32-DevKitC-32 Module model: ESP32-WROOM-32 Main control chip: ESP32-DOWDQ6-V3 dual-core 32bit MCU integrated WiFi, Bluetooth, Integrated 520 kBSRAM, 448 kBROM16 kBSRAMinRTC External Storage: 4MB USB driver chip: CH340C, with good system compatibility, faster download speed, and more stability. Support VIN external wide voltage input 5-12V power supply (battery version maximum 5.5V input) Support USB power supply, external 3.3V power supply, and VIN power supply three kinds of power supply Mode development board size: 52*28mm / weight about 9.5g Support ArduinoIDE mixly, mind +, Python and other programming software Package 1*Development Board OR 1*Expansion Board 【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool. 【High-Quality Materials】Crafted from premium, durable materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety. 【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users. 【Eco-Friendly and Sustainable】Made with environmentally conscious practices, this product is eco-friendly and contributes to sustainability efforts. It is designed to minimize waste and reduce environmental impact.