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| Description | PIN | Description | |
|---|---|---|---|
| Battery Voltage | 1 | 2 | Battery Voltage |
| GND | 3 | 4 | GND |
| 5v | 5 | 6 | 5v |
| GND | 7 | 8 | GND |
| 3v3 | 9 | 10 | 3v3 |
| GND | 11 | 12 | GND |
| TX+ | 13 | 14 | RX+ |
| TX- | 15 | 16 | RX- |
| ADDR 0 (LSB) | 17 | 18 | ADDR 1 |
| ADDR 2 | 19 | 20 | ADDR 3 (MSB) |
| Power LED 0 | 21 | 22 | Status LED 1 |
| GPIO 0 | 23 | 24 | GPIO 1 |
| GPIO 2 | 25 | 26 | GPIO 3 |
| GPIO 4 | 27 | 28 | GPIO 5 |
| GPIO 6 | 29 | 30 | GPIO 7 |
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