| Device 1 Pin Number | Device 1 Pin Name | Direction | Device 2 Pin Number | Device 2 Pin Name | Description (may be empty) | 
| 2 | TX | to | 5 | RX | |
| 3 | RX | from | 6 | TX | |
| 5 | GND | - | 4 | GND | 
| Device 1 Pin Number | Device 1 Pin Name | Direction | Device 2 Pin Number | Device 2 Pin Name | Description (may be empty) | 
| 2 | TX | to | 5 | RX | |
| 3 | RX | from | 6 | TX | |
| 5 | GND | - | 4 | GND | 

