CO2 value reports over 4000 if monitor is connected after the ESP has booted up

[EpicLPer]

In the rare case the CO2 monitor is powered up after the ESP finished booting it'll constantly report a value of over 4000, however it does report the right temperature. The 4000 value won't go down despite the monitor itself displaying the right value.

Resetting the ESP when this happens will work just fine so maybe a check "If over 4000 for a minute > reboot ESP" would be the fix?

[schinken]

that would be more like a symptom-fix. I'd like to solve the underlying issue ;)
Let me think about this ;)

[EpicLPer]

Btw. a bit offtopic but I'm currently designing a backplate replacement with a Wemos D1 Mini holder for that Monitor which can then be 3D printed so the ESP doesn't have to dangle around at the back or hot-glued to it :)

[schinken]

Nice! Let me know when you have some files :)

[EpicLPer]

There ya go!

https://www.thingiverse.com/thing:4225732