Control home ventilation system by Netatmo (huminity & CO2)

[Hellfish]

Hi,

i am going to install a home ventilation system in our house and want to control it with the excisting netatmo sensors in every room. The system is simply controlled by 0-10V for the fan speed. I guess i will use a ZMNHVD1 or ACM-LV10 for that.

The goal is to use the CO2 (and huminity) sensors to control the ventilation system over the full speed range.

The logic could be:
CO2 < 400ppm = 10% fan speed (the system should never be turned off)
CO2 400ppm - 2500ppm = 10% - 100% fan speed

I played a bit with blockly but as far as i know i can only realize steps with fixed fan speed (e.g. 10%, 25%, 50%, 100%).

So how can i link the CO2 reading from netatmo to a 0-10V controller with a linear function? (The next step could be to include the huminity and dewpoints.)

Thanks for every advice.

Cheers Hellfish

[albamatti]

Maybe this site might help: http://www.fam-oldenburger.nl/wordpress ... -domoticz/


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[Hellfish]

Thanks. Sadly that site is dutch only.

[albamatti]

Please dm me. I can help you


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