Hello,
Super new to the ESP in general and wanted to check is it possible to repurpose the existing set of non addressable 12V led strip in closet and be controllable by touch as it is and adding the switch to the Home Assistant
Here is the set I have installed in the closet
12V power supply connected to the Capacitive switch that is hidden and then connected to the LEDs
Is it possible to use this setup just to add “smart” feature to the existing setup
Yes it is
Any hint to start my research or what parts will be needed? I kinda don’t have a clue where to place the ESP
Because all of the logic seems to go to the “switch” but it seems more like complete LED controller than a switch
So you have this set, and want to add esphome somewhere in the mix? Or you want to control an esphome light with a capacitive switch?
Yes I already have this set installed. It is mounted behind the 2cm of wood in closet and you can turn on the led with touch from outside. I want to keep the same function but add feature to turn on and off lights from HA
How many connectors do those 12v wire connectors have?
2 wires input for 12V PSU and 2 wires output connecting to the LEDs
Does that capacitive switch have some dimming functions? Or just on-off?
Just on and off
Do you have multimeter to verify if it’s switching positive or negative?
Positive switched, 0V when off 12V when on
Are you 100% sure of that?
If you measure like this, what you get (on/off)?
Both on and off 12V. Am i measuring that correctly? 
When i put + from meter to the PSU+ and - on the negative of the switch then i get 12V when on 0 when off
Like I though, so it’s switching the negative side, right?
If so, you can use Shelly Plus1 and wire your capacitive switch to SW
Just insert the shelly between the PSU and switch? Would that cut the supply to the whole thing and would not be able to turn when switch is turned off in HA?
Switch is using some magnetic field and when you put wire next to it it turns(and it is not working properly switch wires are to close to it). I was thinking maybe you can skip the ESP from the circut but somehow just try to alter the switch and simulate the flow with GPIO but i don’t know how would HA know it switch is on or off this way
No. Shelly is between PSU and LED. Capacitive switch is used just to trigger shelly. Instead of powering anything it just gives change of state signal.
So you have parallel trigger either from switch or from HA.
Do you need wiring scheme?
You can wire shelly distant from switch if you have doubts with interferences.
Oh i missurderstand the shelly. SW is really just a switch and it is not for powering. You connect the leds od the left. Didnt see that on first look
Seems better solution then ESP for sure because you dont need multiple converters from 12V
I have ordered the shellies.
If you have time to write quick diagram in next few days it would be so helpfull 
