3D Printer Enclosure - Touch controller for my lights
Channel: Sasa Karanovic
Date: 20/07/2020

I wanted to build a simple controller to turn my 3D printer's enclosure lights on and off, but at the same time I wanted to avoid using rocker or toggle switches because they usually look bulky and stick like an eye sore.

My idea was to use LM2956 DC-DC voltage regulator module. It can handle relatively high currents, it has build in trim potentiometer to adjust the voltage and therefore the brightness of my LEDs and also has a neat On/Off feature. We can modify the regulator board a bit and add TP223 Touch sensor to turn the load on or off by touching the surface. This is perfect because then you can cover that touch sensor (i.e. hide it under another surface) and it will still work, basically giving you an invisible switch from the outside.

TTP223 Module - https://www.aliexpress.com/wholesale?SearchText=TTP223

LM2956 Module - https://www.aliexpress.com/wholesale?SearchText=LM2596

LED Strip - https://www.aliexpress.com/wholesale?SearchText=LED%20Strip

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