Hi,
I have a Villavent VTR 300 ventilation unit in my house that I want to control using a ESP8266 (ESP-01). My plan is to make the ventilation unit go into high fan mode when a sensor in the bathroom detects too much humidity.
According to the documentation on schematics of my ventilation unit the unit will go into high fan mode if DI3 and GND are shorted (i've attached the schematics).
What is the simplest way to short these pins together? I've already figured out how to control one of the inputs of
this type of relay. Is this the best way to go, or could it be done simpler? I am also concerned that the relay I linked to will give some kind of current that can damage the ventilation unit circuitry.
Would be good with some tips since i'm on quite thin ice here knowledge-wise.