ITEM NAME:4 MB Flash PSRAM REV1 ESP32-WROVER Bluetooth Module Kit Micropython Firmware Description: ZERO ESP32 WROVER Micropython 4 MB PSRAM flash WiFi bluetooth module electronic component development board. Power button: click one time will start, fast click 2 times will shut down. Short circuit protection, over charging protection, overflowing protection. Each item has been tested and checked in good.Latest ESP32 Version: REV1. Default Firmware: Latest Micropython Firmware. 2 Pieces Pins. Material: Electronic Component.