compatible with Comfoair E400 series?

wichers / esphome-comfoair

ESPHome configuration to drive Zehnder ComfoAir devices.

GNU General Public License v3.0

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compatible with Comfoair E400 series? #11

Open heldopsokken opened 2 years ago

heldopsokken commented 2 years ago

I am unable to find anything in the documentation is there is any uart connection available for the Zehnder ComfoAir E400. Do you know where I could find it? Or do you know if there is any UART on the board available? Currently I can only control fan speeds via nRF905-API. As nice as this is I'd like to see other sensor values which you can read out in via the display as well.

wichers commented 6 months ago

I'm sorry for this two year late reply. There does appear to be a connector (C3) that is unused and it looks like there are shift level converters attached to these pins. The pinout needs to be traced back (using a multimeter) to the main processor to confirm this. I'll leave this comment open for someone who is willing to investigate further.

e400