Features 1.For Espressif official ESP32-WROOM-32 module, 4MB flash memory, using the latest ESP32 version of REV1. 2.Lithium battery interface, 500mA maximum charging current, stable operation, you can use with confidence. 3.Strong compatibility, it is suitable for Arduino, for MicroPython, strong performance. 4.This product is made of high quality PCB material, strong and durable. 5.The default firmware is the latest for MicroPython, which supports running for Micropython and has good performance in Python. specificationFeatures:_x000D_ _x000D_ For Espressif official ESP32-WROOM-32 module, 4MB flash memory, using the latest ESP32 version of REV1. _x000D_ Lithium battery interface, 500mA maximum charging current, stable operation, you can use with confidence. _x000D_ Strong compatibility, it is suitable for Arduino, for MicroPython, strong performance. _x000D_ This product is made of high quality PCB material, strong and durable. _x000D_ The default firmware is the latest for MicroPython, which supports running for Micropython and has good performance in Python. _x000D_ _x000D_ :_x000D_ Material: PCB_x000D_ Microcontroller: ESP-32_x000D_ Board Power Supply: (USB) 5V_x000D_ Support Battery: For Lipo Battery 3.7V_x000D_ Working Voltage: 3.3V_x000D_ Flash Memory: 4 Mbytes_x000D_ _x000D_ Package List:_x000D_ 1 x Module_x000D_ 2 x Pin PackageList