| Device 1 Pin Number | Device 1 Pin Name | Direction | Device 2 Pin Number | Device 2 Pin Name | Description | 
| 2 | 2 | TX | |||
| 3 | 3 | RX | |||
| 5 | 5 | GND | 
| Device 1 Pin Number | Device 1 Pin Name | Direction | Device 2 Pin Number | Device 2 Pin Name | Description | 
| 2 | 2 | TX | |||
| 3 | 3 | RX | |||
| 5 | 5 | GND | 

