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4 changes: 2 additions & 2 deletions carrier-boards/mini-carrier-board/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -83,8 +83,8 @@ The red dot on the plug side denotes Pin 1.
| Pin Number | Name | Direction | Voltage | Wire Color | Caption |
| ---------- | -------------------- | --------- | ----------------- | ---------- | ------------------------------- |
| 1 | VCC\_5V | IN | 5 V | RED | VCC Power Supply To GPS From AP |
| 3 | SERIAL\_3\_TX | OUT | 3.3 V - 5.0 V TTL | BLACK | UART 3 TX (Transmit Data) |
| 2 | SERIAL\_3\_RX | IN | 3.3 V - 5.0 V TTL | BLACK | UART 3 RX (Receive Data) |
| 2 | SERIAL\_3\_TX | OUT | 3.3 V - 5.0 V TTL | BLACK | UART 3 TX (Transmit Data) |
| 3 | SERIAL\_3\_RX | IN | 3.3 V - 5.0 V TTL | BLACK | UART 3 RX (Receive Data) |
| 4 | I2C\_1\_SCL | IN | 3.3 V | BLACK | I2C 1 Clock Signal |
| 5 | I2C\_1\_SDA | IN/OUT | 3.3 V | BLACK | I2C 1 Serial Data |
| 6 | BUTTON | | GND | BLACK | Signal shorted to GND on press |
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