I saw a short TikTok with a led table that lights up when touched and immediately felt like building it myself. So i designed my own Main-PCB and little hexagonal PCBs for the light and touch.
I've designed a Hexagon shaped part. This is multimaterial, to block the direct light from the leds and let it shine to the outside.
The wiring is straight forward for the leds and then one signal back, per hexagon, for the touch sensors to the main PCB. RP2040 Pico is used as the main controller
The Hexagons are under a clear layer of epoxy resin. Touch sensores are in the inside of the hexagons.
The hexagons react on touch and dim themselve. The color can be changed in the programm. The leds are WS2812b.