2X(ESP32 ESP-WROOM-32D WIFI Bluetooth Development Board CH340 with 0.969950
Bluetooth: Bluetooth 4.2BR/EDR and BLE standards. Antenna form: onboard PCB antenna with a gain of 2dBi. 2X(Adopting 802.11b/g/WiFi+BT module;. Support local serial port upgrade and remote upgrade (FOTA). ).