Skip to main content

RAK WisBlock Core Modules

RAK4631 - nRF52​

info

Please be aware of the difference between the RAK4631 (Arduino bootloader) and the RAK4631-R (RUI3 bootloader). Meshtastic requires the Arduino bootloader. If you have a RAK4631-R, please see the instructions for converting the bootloader.

  • RAK4631
    • MCU
      • nRF52840
        • Bluetooth BLE 5.0
        • Very low power consumption
    • LoRa Transceiver:
      • SX1262
    • Frequency Options:
      • 433 MHz
      • 470 MHz
      • 799 MHz
      • 865 MHz
      • 868 MHz
      • 915 MHz
      • 920 MHz
      • 923 MHz
    • Connectors:
      • U.FL/IPEX antenna connector for LoRa

Resources​

RAK4631 Core Module

GPIO​

Note

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.

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.

RAK PinnRF52840 PinArduino GPIORemark
IO1P0.1717used to toggle power to peripheral modules using 3v3_S power rail, not available for user application
IO2P1.0234used to power all peripheral modules, not available for user application
IO3P0.2121
IO4P0.044
IO5P0.099The 'User Button' is mapped here.
IO6P0.1010
IO7P0.2828
SW1P0.011
A0P0.04/AIN2A2
A1P0.31/AIN7A7
SPI_CSP0.2626

When configuring GPIO pins in your device settings, the Arduino GPIO numbers should be used.

Example
meshtastic --set external_notification.output 10

This will use IO6 on a RAK4631