In the last few chapters, we sent data from the device to the Azure IoT Hub and monitored the data using Azure IoT Tools. Now it’s time to discuss sending messages or data from the cloud to the device. You might need to do this in the following scenarios:
If the temperature is more than the threshold value, you may need to make sure that the room temperature is balanced. How do you that automatically? You can send instructions from the cloud to the device to turn on the fan and air conditioner.
Imagine that you need to install a new module or firm update, perhaps on ...
