Initially planned to use with Attiny85 controller and RF433 radio module to add remote control possibility. But after some considerations decided to keep it simple and just leave touch sensors. Therefore mcu is removed and sensors connected directly to relays with jumper wires.
I used OMRON SSR solid state relay modules and TTP223 touch sensors. To make sensors work in switch mode you just need to solder 2 jumper bridges on the module.