Features: 1. For Espressif's official ESP32-WROOM-32 module, featuring 4MB flash memory and the latest ESP32 REV1 version. 2. Equipped with a lithium battery interface and a maximum charging current of 500mA for stable operation. 3. Strong compatibility, suitable for Arduino and MicroPython, offering robust performance. 4. This product is constructed from high-quality PCB material, ensuring strength and durability. 5. The default firmware is the latest MicroPython version, supporting Python execution with excellent performance. Specification: Features: For Espressif's official ESP32-WROOM-32 module, featuring 4MB flash memory and the latest ESP32 REV1 version. Equipped with a lithium battery interface and a maximum charging current of 500mA for stable operation. Strong compatibility, suitable for Arduino and MicroPython, offering robust performance. This product is constructed from high-quality PCB material, ensuring strength and durability. The default firmware is the latest MicroPython version, supporting Python execution with excellent performance. Specification: Material: PCB Microcontroller: ESP-32 Board Power Supply: (USB) 5V Battery Support: For Lipo Battery 3.7V Working Voltage: 3.3V Flash Memory: 4MB Package List: 1 x Module 2 x Pins