# barometer status

Source: https://forum.modalai.com/topic/4742/barometer-status
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: flight-core-v2
Posted: 2025-09-15 14:38:28 UTC by ravi
Replies: 3 · Views: 1260

## ravi · 2025-09-15 14:38:28 UTC

Hi @Moderator 

 I want to know the Flight Core v2 Onboard barometer sensors' implementation status. Is it working or not?

Because, as per the details on page "Flight Core v2 Onboard Sensors" Link- https://docs.modalai.com/flight-core-v2-onboard-sensors/
There are 2 barometer sensors available.
- But BARO1 - BMP388 (U5, I2C4, 0x76)  is disabled by default.- Can you provide details on why it was disabled? any reasons like not stable output, improper implementation, or 
 Can we enable BARO1 and use it without any issues?

- Now BARO2 - ICP-20100 (U17, I2C4, 0x63) seems set as default but as per Note added "Note: ICP-20100 not ported from VOXL2 yet.". It seems like not working at all.
Can you clarify the status of it?

Also, I saw posts claiming issues with the barometer on Voxl-mini
Like, data is not stable, variation is too high?
Can you share details for Flight Core 2 sensors, how reliable it is?

Thank you.
Ravi

## Reply by Eric Katzfey (ModalAI staff) · 2025-09-15 17:18:51 UTC

@ravi The ICP barometer should be working. The issues on the VOXL2 mini are related to temperature since it is on the same board as the Qualcomm device that creates a lot of heat on it's own so not applicable to flight core. Why do you say that it is not working? Is the sensor_baro topic being published? What software version do you have loaded on the flight core?

## Reply by ravi · 2025-09-16 12:23:17 UTC (in reply to Eric Katzfey)

@Eric-Katzfey 
No, I am not saying the sensors are not working.
In fact, I haven't tested yet.
I just stated everything mentioned in the flight-core-v2 user guide.
Link- https://docs.modalai.com/flight-core-v2-onboard-sensors/

So, while testing, I can check it or configure it on PX4 and reprogram.

If everything is working, why user guide say?
![87941590-b202-47e4-8c6a-56db8d76c26d-image.png](https://forum.modalai.com/assets/uploads/files/1758025174698-87941590-b202-47e4-8c6a-56db8d76c26d-image.png) 

So, as per you say, BARO1 is working but disabled? 
And BARO2 is working perfectly. Even though there is a mention of software not ported?

Please clarify for both.
Thank you.

## Reply by Eric Katzfey (ModalAI staff) · 2025-09-16 18:23:15 UTC (in reply to ravi)

@ravi The documentation has been updated. If you are running a recent release from us then you will be using the ICP-20100 barometer. The BMP388 will not be started.