First, we will establish the connectivity with Azure IoT Hub. We will need to use the host URL, device ID, and key, along with the topic. Once we are connected, we will be sending the data to "devices/{0}/messages/events/telemetry".

The second part of this recipe is to receive the command at MQTT client. The topic used for this purpose is “devices/{0}/messages/devicebound/#”.

Using the device explorer tool, we can read the messages ingested into the IoT Hub through this MQTT client and, also using the same tool, we can send some messages back to the client.