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Host DFU Overview

Notehub allows you to manage host MCU firmware versions for entire projects, fleets, or individual devices. You can use Notehub to upload and deploy custom firmware securely over cellular or Wi-Fi connections.

Are you trying to update the firmware on your Notecard devices? Please see our guide on Updating Notecard Firmware.

warning

Notecard LoRa does not support management of firmware updates via Notehub.

Methods for Updating Host Firmware

Notehub supports two discrete methods for updating host MCU firmware:

  1. Using Notecard Outboard Firmware Update (recommended by Blues and supported by most modern microcontrollers).
  2. Using IAP Firmware Update (for a more traditional OTA DFU implementation).

Regardless of the method used to update host firmware, you may deploy and monitor DFU actions by:

  1. Using the Notehub API (to remotely deploy and monitor firmware updates).
  2. Using the Notecard API (to locally intiate and monitor firmware updates on individual devices).