| MCU | ESP32 |
|---|---|
| Flash | 4MB |
| Serial Chip | CH9102 |
| Wireless protocol |
Wi-Fi + Bluetooth 4.2 |
| Support | TF card slot |
| Onboard functions | Reset \ Power switch |
| Antenna |
3D WiFi Antenna [Use by default] LoRa antenna: |
| Power Supply |
Support USB Micro / Li-Po Battery Dual Power Supply JST GH 2pin 1.25mm [USB can power the battery] |