| No. | Label | Description | Remarks |
|---|---|---|---|
| 1 | ANT + | Antenna Positive | - |
| 2 | ANT - | Antenna Negative | - |
| 3 | NC | Not Connected (Floating) | - |
| 4 | BTANT | Bluetooth Antenna | - |
| 5 | P2.5 | GPIO | - |
| 6 | P2.6 | GPIO | - |
| 7 | P3.3 | GPIO | - |
| 8 | P3.2 | GPIO | - |
| 9 | NC | Not Connected (Floating) | - |
| 10 | RXD | MCU UART (Receive Data) | - |
| 11 | TXD | MCU UART (Transmit Data) | - |
| 12 | GND | Ground | - |
| 13 | 5V | Module Power Supply | - |
