| Pin | Signal | Description |
|---|---|---|
| 1 | GND | |
| 9 | Tx | connected to +5v via 10k resistor in serial cable |
| 10 | Rx | connected to +5v via 10k resistor in serial cable |
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| Pin | Signal | Description |
|---|---|---|
| 1 | GND | |
| 9 | Tx | connected to +5v via 10k resistor in serial cable |
| 10 | Rx | connected to +5v via 10k resistor in serial cable |