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We currently support devices that use the ESP32 and the nRF52 microcontrollers. Both of these offer low power consumption and long battery life, but each come with their own advantages:


The following ESP32 devices are supported:


Supported but not encouraged:

  • Lilygo TTGO T-Beam - version 0.7 -- Very old, no power management chip, difficulty with GPS module and is frequently confused with other devices.


  • Strong hardware/software support, as these devices have been on the market for a longer period of time
  • Wi-Fi capable, with full web interface support
  • Numerous 3D printed case designs are available
  • Range Test module is supported


  • Devices do not use Bluetooth 5.0 (BLE), as such may may draw more power


The following nRF52 devices are currently supported:


  • Smaller, more compact designs are available
  • Draws 90-95% less power compared to ESP32
  • Very low Bluetooth power usage due to Bluetooth 5.0 (BLE)
  • Strong manufacturer documentation for RAK Wireless products


  • No Wi-Fi without additional hardware, the Web interface can only be used via the Serial connection option.
  • Newer hardware, as such less software-side support.
  • Currently, cannot be used with the Range Test module.
  • Fewer 3D printed case options.