Jump to content

ASC beim CO2 Bricklet deaktivieren


gabrojas
 Share

Recommended Posts

Hallo,

gibt es eine Möglichkeit die automatische Kalibrierfunktion (ASC) des Sensirion SCD30 CO2 Sensors zu deaktivieren? Wir nutzen 12 dieser Sensoren für bauphysikalische Experimente und würden ASC gerne deaktivieren, aber finde dazu nichts in der API Beschreibung.

Danke im voraus...Gabriel

Edited by gabrojas
  • Like 1
Link to comment
Share on other sites

Thanks! That helps already a lot, I had read it before, but after reading it again I still don't know if I can switch it off via API or if I have to change sensor firmware. A short answer on that would be highly appreciated, then I would know if feasible for me or if I need to involve collegues...Thanks

Link to comment
Share on other sites

Hi Gabrojas,

It is not possible to switch ASC on/off via API with the current firmware.

That other thread ultimately led to firmware 2.0.3, which forces ASC on at startup. Before that, at least some CO2 Bricklets erroneously shipped with ASC switched off.

I would welcome the option to control ASC manually, but if you know how to build firmware, it might be feasible to implement yourself. This is the diff for the above FW change.

Hope this helps.

Link to comment
Share on other sites

  • 3 weeks later...

Thanks Superp,

Do you know: does that mean that if I install firmware 2.0.2 the ASC will be turned off? The changelog for 2.0.3 says "Make sure ASC is enabled on each startup", but does that mean that ASC is disabled with 2.0.2 after a startup or not necessarily and if ASC is activated (now with 2.0.3) it stays activated, even if you flash with 2.0.2?

Link to comment
Share on other sites

  • 2 weeks later...

I don't know.

Did you read the thread I linked to above?

Firmware < 2.0.3 did not touch ASC, it was assumed to be activated during manufacturing.

But, apparently, at least some Bricklets were shipped with ASC not activated. So, I would say, a Bricklet that has never run 2.0.3 has ASC in an unknown state.

2.0.3. activates ASC.

2.0.2. and older do not touch ASC.

So the question is: does the Bricklet retain the state of ASC between restarts?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...