Azure IoT Service Spike

Architecture of AirCares

Summary of the POC

Notes of the Spike

1. Basic concepts: events, insight and action: https://docs.microsoft.com/en-us/azure/architecture/example-scenario/iot/introduction-to-solutions
2. Create a IoT Hub: https://www.youtube.com/watch?v=A4TKvsLu2Yw
3. Quick start of IoT Hub: https://docs.microsoft.com/en-us/azure/iot-develop/quickstart-send-telemetry-iot-hub?pivots=programming-language-nodejs
   1. Get connection string of the IoT Hub: az iot hub connection-string show –hub-name ${nameOfIoTHub}
   2. Run a simulated device:
      1. Create a device
      2. run https://github.com/Azure/azure-iot-sdk-node/tree/master/device/samples/pnp
   3. Listen the message sent from the simulated device: az iot hub monitor-events –output table –device-id ${nameOfDevice) –hub-name ${nameOfIoTHub}
4. Create logic layer to process events from IoT Hub: https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-event-iot-trigger?tabs=csharp
5. Use Azure Function
6. Send Cloud to device message:
   1. Overview: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-messaging
   2. Details: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-node-node-c2d
   3. Notes: the connectonString for device and service can only be used for specific purpose correspondingly.
7. Azure loggin system