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37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
---
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id: rak-gpio-mapping
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title: RAK GPIO Pin Mapping
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sidebar_label: RAK GPIO Mapping
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sidebar_position: 5
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---
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## RAK GPIO Pin Mapping
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The RAK4631 uses symbolic labels for its I/O Pins on the module and baseboard silk screens. The following table shows the mapping of the RAK4631 GPIO pins to the corresponding Arduino pins and the MCU Port numbers.
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| RAK Pin | nRF52840 Pin | Arduino GPIO | Remark |
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| ------- | ------------ | ------------ | ------ |
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| IO1 | P0.17 | 17 | used for GPS PPM signal if GPS module is connected |
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| IO2 | P1.02 | 34 | used to power all peripheral modules, not available for user application |
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| IO3 | P0.21 | 21 |
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| IO4 | P0.04 | 4 |
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| IO5 | P0.09 | 9 | The 'User Button' is mapped here. |
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| IO6 | P0.10 | 10 |
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| IO7 | P0.28 | 28 |
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| SW1 | P0.01 | 1 |
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| A0 | P0.04/AIN2 | A2 |
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| A1 | P0.31/AIN7 | A7 |
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| SPI_CS | P0.26 | 26 |
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When configuring GPIO pins in your device settings, the Arduino GPIO numbers should be used.
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```shell title="Example"
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meshtastic --set external_notification.output 10
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```
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This will use IO6 on a RAK4631
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:::caution Note
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There is no usable GPIO pin on any RAK base board except the 'big' baseboard RAK19001 without adding a RAK13002 IO module or a third party IO sensor breakout.
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:::
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