diff --git a/NucuCar.Sensors/Readme.md b/NucuCar.Sensors/Readme.md
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@@ -1,5 +1,25 @@
 The service will gather sensor data and provide access to it via gRPC.
 
+### Telemetry
+
+You can use cloud telemetry for free via Azure-IoT-Hub.
+You still need a backend application that will process the messages.
+
+You will need to create a:
+- IoT Hub
+- IoT Device
+
+Then navigate to your device and grab the primary key, you will need it to create
+a connection string of the form:
+
+`HostName=YOUR_IOT_HUB_NAME.azure-devices.net;DeviceId=YOUR_DEVICE_NAME;SharedAccessKey=PRIMARY_OR_SECONDARY_KEY`
+
+The connection string can be passed to the application via `appsettings.json` or command line arguments or environment variables:
+```
+dotnet run --Telemetry:AzureIotHubConnectionString=CONNECTION_STRING
+export Telemetry:AzureIotHubConnectionString=CONNECTION_STRING
+```
+
 ### Enviroment Sensor
 
 Worker service for the [BME680](https://www.bosch-sensortec.com/bst/products/all_products/bme680) enviromental sensor from Bosh.