Support: Clarify CO2 and Humidity sensor behavior

[PrivatePuffin]

Describe the bug

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Just for clarity:

According to the wiki, with an external CO2 sensor:
If set to medium, regardless of the addon fan speed setting, it will always speed up based on CO2 as long as the CO2 sensor is directly connected to the itho and not to the addon?

How about the itho external humidity sensors, would that function in the same way?

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Also:
Dont offer the empty issues option please, if you've a bot that insta closes them and just remove the option.

[arjenhiemstra]

If set to medium, regardless of the addon fan speed setting, it will always speed up based on CO2 as long as the CO2 sensor is directly connected to the itho and not to the addon?

Yes. I believe the CO2 speed setting also overrules the PWM2I2C speed setting but I'm not sure.

How about the itho external humidity sensors, would that function in the same way?

I have my RFT RV connected to the add-on. I'll have to connect it to my itho to be able to test the behaviour but I expect it to be the same or comparable to the RFT CO2

[PrivatePuffin]

Yes. I believe the CO2 speed setting also overrules the PWM2I2C speed setting but I'm not sure.

I've gotten a few CO2 sensors and switched the addon to "virtual remote" mode, without PWM2i2c.
Once thats working well, I'll see with home assistant logging how-much the behavior will change using PWM2I2C mode :)

[arjenhiemstra]

Just to be clear;
If you use virtual remote, that looks for the itho firmware just as a regular physical remote and functions the same, only this is send bij de 2x4 pin heaer to the itho firmware directly instead of via RF.

The PWM2I2C only works when the itho is in medium or auto mode.

You can play with both of course, just my two cents might you have missed this piece of info

[PrivatePuffin]

@arjenhiemstra Yes I'm aware, thats precisely why I have switched to use virtual remote.
I want to ensure the CO2 sensors work correctly without complications from PWM2I2C.

It gives me the most certainty that I can predict how it will react prior to setting up the new sensors.
Once I know how virtual remote reacts, I can see if the behavior is different with PWM2I2C.

I dont want to change all sorts of variables at once.

[PrivatePuffin]

Though @arjenhiemstra is it technically possible for the addon to read co2 and rv and pass those through as a toggleable behavior?

Instead of the current "ignore" behavior?

So that we can have the itho handle co2 and rv rampup.

[arjenhiemstra]

What do you mean with :
"pass those through as a toggleable behavior"
and
"Instead of the current "ignore" behavior?"

Sorry, I can make some guesses but im not sure what you mean by these quesions

[PrivatePuffin]

Never mind, I just noticed I can just have the sensors connected to both the main unit AND the addon.
Though imho that should also be in the wiki, as it now basically states you need to make choices on whether to use the sensors with either addon or main-unit.

Also some notes when testing:

• I'm not sure if its related to having co2 sensors now, but double tapping auto on a remote (single tap results in settings 7 == auto), it goes to setting 8 "unknown", possible auto-night?
• At the moment I'm working on optimising the Itho settings to more-strictly comply with the health requirements, with a ramp starting around 900-1000 instead of 1200+

[WO15]

Privatepuffin, Not sure which HW you use but for Itho CVE-S optima 2, behavior of box is quite complicated.

• With no CO2 sensor connected pressing quickly two times of Auto button will not work. Box will go or stay in auto mode (7)
• With one CO2 connector connected, box seems to react as Optima 2, pressing quickly two times of Auto button will start "auto night" mode (8). speed will increase with values 34-39 under "Itho settings". Exact values are based on settings for 1 of multiple floor building and 1, 2 or multi persons.
• With 2 CO2 sensor connected box seems to behave like Optima 2. Speed will increase with values 40-45 under "Itho settings".
  Easy trick to see which mode the box is in, is to increase the settings above to e.g. 83% one by one. Note make screenshot/printout before you start changing these settings.

[PrivatePuffin]

Privatepuffin, Not sure which HW you use but for Itho CVE-S optima 2, behavior of box is quite complicated.

• With no CO2 sensor connected pressing quickly two times of Auto button will not work. Box will go or stay in auto mode (7)
• With one CO2 connector connected, box seems to react as Optima 2, pressing quickly two times of Auto button will start "auto night" mode (8). speed will increase with values 34-39 under "Itho settings". Exact values are based on settings for 1 of multiple floor building and 1, 2 or multi persons.
• With 2 CO2 sensor connected box seems to behave like Optima 2. Speed will increase with values 40-45 under "Itho settings".
  Easy trick to see which mode the box is in, is to increase the settings above to e.g. 83% one by one. Note make screenshot/printout before you start changing these settings.

I dont think I was asking for an explaination as this behaviour was quite clear to me.

The point I tried to make, is that auto-night isn't documented on the wiki and, more importantly, not supported by the addon as of yet.

[arjenhiemstra]

• it goes to setting 8 "unknown", possible auto-night?

Where do you see "unknown", I guess this is probably the FanInfo label? If so, could you please post the raw output of the debug function 31DA?

The point I tried to make, is that auto-night isn't documented on the wiki and, more importantly, not supported by the addon as of yet.

Feel free to edit the wiki as you see fit! The whole wiki is made by users and all input to keep it up-to-date or improve it is much appreciated.
About auto night mode; this should be supported by the add-on (commands are in de firmware, labels are present etc.) but it might be incomplete or incorrect. Hopefully we can find out how to improve the support

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