# Calibration of Humidity (BME280)
**URL:** https://forum.sensor.community/t/calibration-of-humidity-bme280/2680
**Category:** Feature Requests
**Created:** [March 18, 2024, 12:21am UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680 "2024-03-18T00:21:57Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Andrix](https://forum.sensor.community/u/Andrix)
#### Post date: [March 18, 2024, 12:21am UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/1 "2024-03-18T00:21:57Z")
Hello world! I’m happy to be in this community since few weeks! I’ve a question related to the calibration of the T&H sensor.
I already read this thread:
> [@Calibration of SDS011 and BME280](https://forum.sensor.community/t/calibration-of-sds011-and-bme280/312):
>
> Hello everybody, Do I need to calibrate the SDS011 and BME280? I believe the temperature is 1 degree Celcius too low and the humidity 5% too high. I have the sensors still inside the house. Thank you. smiling_face_with_three_hearts
and from it I took some useful information.
I’m not complaining about the accuracy, but I just would like to have it aligned to the other T&H sensors that I have.
I’ve positioned it close to another sensor in the center of my house, which I used as “master” to correct all the others. In the picture you can see the comparision.
Then, here the request that I think it could be useful for all: similarly to the “correction °C” already available, is it possible to add a RH% correction?
Just to be clear, I’m speaking about this correction, already present for the temperature:
Thank you all again for your amazing work!
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### Author:  [@pjg](https://forum.sensor.community/u/pjg)
#### Post date: [March 18, 2024, 6:12am UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/2 "2024-03-18T06:12:21Z")
I could add something in the beta for now but you will have to flash with platformio.
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### Author:  [@Andrix](https://forum.sensor.community/u/Andrix)
#### Post date: [March 22, 2024, 10:40pm UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/3 "2024-03-22T22:40:46Z")
Thank you pjg… I’ve applied the correction after the acquisition from the web. Then I’ve solved it.
But in any case I think it is something interesting for the future customers.
Thank you again for your amazing work,
Andrea
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### Author:  [@pjg](https://forum.sensor.community/u/pjg)
#### Post date: [March 23, 2024, 9:21am UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/4 "2024-03-23T09:21:53Z")
OK. But I should code again a bit.
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### Author:  [@kotsko](https://forum.sensor.community/u/kotsko)
#### Post date: [June 20, 2026, 6:29pm UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/5 "2026-06-20T18:29:47Z")
Hello,
I also want to calibrate my bme280. Where is the beta firmware with the humidity calibration/correction? Thanks
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### Author:  [@kotsko](https://forum.sensor.community/u/kotsko)
#### Post date: [June 28, 2026, 3:55pm UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680/6 "2026-06-28T15:55:28Z")
OK. i build a firmware myself from github ( **airrohr-firmware** ) that supports humidity correction on the bme280.
[Download BIN](https://drive.google.com/file/d/1m6EwIlZShy98MOD21nSSJqh9cyxXiRJd/view?usp=drive_link)