Store telemetry data into IOT Central Component or interface

Joshua Burke 0

I am trying to store telemetry data from a microcontroller with a bme680 temp, humidity, pressure, VOC. I created a component in the IOT Central template for the bme680 and I am trying to store the data into the component. I have only been able to store it in the "Root" I am using micropython on a pico w

telemetry_data = {"bme680name": bme680_temp} etc.. ("Name*": data) this works when putting it in the "Root" area of the device just not the component or interface.

Thanks

Manas Mohanty (Quadrant Resource LLC) 295 Reputation points Microsoft Vendor

2025-02-05T05:35:28.1666667+00:00

Hi Joshua Burke!

We are checking to see if the pointers from Sander van de Velde | MVP helped.

Attached relevant documentation for reference.

Transform telemetry internally

Create a device template.

Thank you.
Manas Mohanty (Quadrant Resource LLC) 295 Reputation points Microsoft Vendor

2025-02-06T00:46:34.82+00:00

Hi Joshua Burke!

We have not heard from you ,hope the pointers shared has helped you.

Thank you.

1 answer

Sander van de Velde | MVP 34,691 Reputation points MVP

2025-01-20T10:13:23.9633333+00:00

Hello @Joshua Burke,

welcome to this moderated Azure community forum.

First, be sure you are sending a correct JSON message to the Azure IoT Central device.

Without any template, you should see the arrival of raw messages.

From there, start working on the device template to match the incoming message structure.

Here is an introduction module into Azure IoT Central.

How to manage a device is described here.

Check out this free training module about Azure IoT Central.

This will give you more context on adding a device and ingesting telemetry.

If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.
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Joshua Burke 0 Reputation points

2025-01-21T02:46:39.99+00:00

Thank you for your reply. Ideally I would have all the bme680 sensor under one component. Currently I get it to work only sending the data to the "Root" It works fine that way and populates my template. I would have thought the json file would have been nested with the component "Name", but I did not get that to work so I was obviously doing something wrong.

Below is what will work when sending it to the "Root" with the template correct.

telemetry_data = { 'bme680_gas': bme680_gas, 'bme680_hum': bme680_hum, 'bme680_pres': bme680_pres, 'bme680_temp': bme680_temp, 'cpu_temp': cpu_temp, 'wifi_ssid': ssid, 'wx_hum': humidity, 'wx_location': station_id, 'wx_temp': temperature, 'device_id': deviceid }

Joshua Burke 0 Reputation points

2025-01-21T02:48:15.46+00:00

I posted further clarification in a separate thread.

Joshua Burke 0 Reputation points

2025-02-08T21:11:06.55+00:00

this is the telemetry i am sending. what would i need to change to make it go into a component...i kind of have 3 of them. the bme680, the pico W with wifi, and the wx witch is a external weather station. telemetry_data = { 'bme680_gas25': bme680_gas, 'bme680_hum25': bme680_hum, 'bme680_pres25': bme680_pres, 'bme680_temp25': bme680_temp, 'cpu_temp25': cpu_temp, 'wifi_ssid25': ssid, 'wx_hum25': humidity, 'wx_location25': station_id, 'wx_temp25': temperature, 'device_id25': deviceid }

Joshua Burke 0 Reputation points

2025-02-08T21:22:51.75+00:00

the other item am working on is sending property data change calibration data to each bme680 sensor individually. i am not sure the best way to do this. Should i send property data just when it connects or have it stored on the device in a json file. I plan on having the device connected all the time since i need to get remote weather data anyway.
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