SCD41 Breakout low-power mode not activated

[marc-git]

Greeting,
it seems that the SCD-41 should have a low-power version available according to Sensirion documents, which would help a lot when monitoring CO2 from battery-run devices.

Any interest in developing that functionality in the python module?

[Gadgetoid]

#1029

Grab a build from here and try start_low_power, I haven't been able to test it but it's just calling one of Sensiron's API functions so it should work!

[marc-git]

@Gadgetoid Thanks a lot! I can see exactly what needs doing but I am not experienced enough to compile an uf2 file yet i.e. my own badger os plus micropython. I did get the hello_world.c file compiled though. Perhaps it isn't so complicated but it will take me time to figure out without a walkthrough

[marc-git]

ok well that was a can of worms. It seems the Badger UF2 files are not intended to be user-compilable. I've commented on an issue there to encourage that.

[marc-git]

I got the micropython code to compile no problems though...

[Gadgetoid]

Ooof, yes, distilling these changes down to Badger OS might be quite tricky since I haven't approached how much damage the Pico SDK 2.0.0 and 2.1.0 releases have done to that codebase yet 😬

I am slowly trying to move away from the GitHub actions workflows to build scripts regular folks (including myself) can follow. That's on the pile of nice-to-have, though, which is buried somewhere underneath all the AAAAAAAAAA.

[Gadgetoid]

If you grab one of the Badger builds here it should include the new low power mode: pimoroni/badger2040#91

Slowly working toward getting everything merged down, tested and released.

[marc-git]

mental, literally just had the commits open to see if it had been migrated! Thanks a lot.

[marc-git]

@Gadgetoid is it your expectation that it will work with the breakout_scd41 python module? I still only see the following:

• start
• stop
• get_temperature_offset
• init
• measure
• ready
• set_ambient_pressure
• set_sensor_altitude
• set_temperature_offset

but they were all there before.

[Gadgetoid]

There should be a new start_low_power but you'll need the pre-release build from the linked PR.

Will prod it and double check!

[Gadgetoid]

Ah yup, I see it too (Or don't, as it were). Apparently I completely failed somewhere, bear with me!

Edit: Second time's a charm: https://github.com/pimoroni/badger2040/actions/runs/12789751616?pr=91

[marc-git]

thanks! works well now