# Firmware with 2 PMS at the same time
**URL:** https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351
**Category:** Feature Requests
**Created:** [October 18, 2023, 9:02am UTC](https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351 "2023-10-18T09:02:07Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@pjg](https://forum.sensor.community/u/pjg)
#### Post date: [October 18, 2023, 9:02am UTC](https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351/1 "2023-10-18T09:02:07Z")
I made a new branch with the helg of G. Simard from Canada.
[https://github.com/opendata-stuttgart/sensors-software/tree/beta-dualPMS](https://github.com/opendata-stuttgart/sensors-software/tree/beta-dualPMS)
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### Author:  [@air-ais](https://forum.sensor.community/u/air-ais)
#### Post date: [October 18, 2023, 5:41pm UTC](https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351/2 "2023-10-18T17:41:23Z")
Very interesting. What is the motivation behind this version? Redundancy? Increasing reliability? Helping with correction algorithms?
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### Author:  [@pjg](https://forum.sensor.community/u/pjg)
#### Post date: [October 18, 2023, 5:53pm UTC](https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351/3 "2023-10-18T17:53:46Z")
Because PurpleAir does it… 😄
Guillaume from project [https://revolvair.org/](https://revolvair.org/) wanted such a version.
Let’s see what happens with it.
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### Author:  [@air-ais](https://forum.sensor.community/u/air-ais)
#### Post date: [October 19, 2023, 11:23pm UTC](https://forum.sensor.community/t/firmware-with-2-pms-at-the-same-time/2351/4 "2023-10-19T23:23:09Z")
Oh I see! I am really curious how they are going to leverage the presence of the second sensor.