USB Type-C
| Pin No | Pin Name | Pin Function |
|---|---|---|
| 1 | VBUS | Main power supply line |
| 2 | DP | Differential data line (positive) |
| 3 | DN | Differential data line (negative) |
| 4 | CC1 | – |
| 5 | CC2 | – |
| 6 | GND | Main ground line |
| 7 | SHLD | Shield / ground connection |
I2C Communication Connector (JST-SH 1.0 mm, 4-pin)
| Pin No | Pin Name | Pin Function |
|---|---|---|
| 1 | GND | Main ground line |
| 2 | 3V3 | Regulator output (3.3 V) |
| 3 | SDA | Bidirectional data line |
| 4 | SCL | Data clock signal |