Features
Espressif official ESP32-WROVER-B module
1. ESP32 version: REV1
2. FLASH: 4MB
3. Lithium battery interface, 500mA charging current
4. Compatible with Arduino, MicroPython
5. Default firmware: new MicroPytho
Specification
1. Microcontroller: ESP-32
2. Board power: (USB) 5V
3. Support battery: Lipo Battery 3.7V (not included)
4. Working voltage: 3.3V
5. Flash memory: 4 M bytes
6. Dimensions: 78 x 27 mm
7. Weight: 7.8g