After many toughts I am wiling to go a different way.
I do not want to mix the AC from the HestiaPi power supply and the furnace.
So my plan is:
- Remove the transformer
- Use my own USB power supply
- Solder my USB power supply to the original transformer output location
- At this stage the L and N tracks are unused
- Connect my furnace 2 command wires to H and L
Do you think this would work ?
And a last question:
From a previous post: https://community.hestiapi.com/t/feedback-on-hestiapi-touch/573
Something puzzles me:
I’ve cut the AC/5V track near the logo to get a 5V switched signal on the H terminal.
What is this AC/5V track ?
Why are the 220V AC and 5V DC tracks so close ?
Are they actually touching ?
If yes, what is the purpose ?
If not, why would someone cut this ?
Edit: No need to solder the USB power supply. It can be connected to the accessible USB connector (the one that is NOT labelled Power).