https://github.com/n-elia/arduino-nano-33-iot-azure-dps-with-sas-tokens

Sketch to connect an Arduino Nano 33 IoT to the Azure IoT Device Provisioning Service over WiFi with an SSL-secured connection, and authentication based on SAS token. The communication method is direct MQTT (no sdk).
https://github.com/n-elia/arduino-nano-33-iot-azure-dps-with-sas-tokens

arduino arduino-nano-33-iot azure-device-provisioning-service azure-iot device-provisioning

Last synced: about 1 month ago
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Sketch to connect an Arduino Nano 33 IoT to the Azure IoT Device Provisioning Service over WiFi with an SSL-secured connection, and authentication based on SAS token. The communication method is direct MQTT (no sdk).

• Host: GitHub
• URL: https://github.com/n-elia/arduino-nano-33-iot-azure-dps-with-sas-tokens
• Owner: n-elia
• License: gpl-3.0
• Created: 2020-11-16T13:52:35.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2020-11-16T14:00:56.000Z (over 4 years ago)
• Last Synced: 2025-02-14T06:47:47.803Z (3 months ago)
• Topics: arduino, arduino-nano-33-iot, azure-device-provisioning-service, azure-iot, device-provisioning
• Language: C++
• Homepage:
• Size: 16.6 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Arduino Nano 33 IoT Azure DPS with SAS tokens

 Sketch to connect an Arduino Nano 33 IoT to the Azure IoT Device Provisioning Service over WiFi with an SSL-secured connection, and authentication based on SAS token. This sketch uses direct MQTT connection to azure services.

## Just a few hints

- You need to distinguish between Enrollment Groups and Individual Enrollment: the former implies to use the primary or secondary key of the enrollment group to hash each device's derived device key (which will be encoded as a SAS token), while the latter implies that the enrollment key coincides with the device key, so it's sufficient to encode the key into a SAS token.

- The payload of the mqtt messages is described [here](https://docs.microsoft.com/en-us/azure/iot-dps/how-to-send-additional-data#device-sends-data-payload-to-dps)

- Remember to add the Baltimore CA-root certificate to your WiFiNINA module, otherwise your Arduino won't be able to properly identify the Azure servers. [Here](https://support.arduino.cc/hc/en-us/articles/360016119219-How-to-add-certificates-to-Wifi-Nina-Wifi-101-Modules-) is the official tutorial for that.

- You can find the sketch to authorize the same device with X509 in my repos.

- To generate SAS tokens, you can use my python script in the /SAS_token_generator folder.