This ULP for Eagle CAD creates a rotary capacitive touch sensor that allows for click wheel kind input. It's compatible with Atmels QTouch technology.
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README.md
qslice.ulp
touch_pcb.ulp

README.md

RotarySensor

This ULP for Eagle CAD creates a rotary capacitive touch sensor that allows for click wheel kind input. It's compatible with Atmels QTouch technology.

Credits go to Dan Afonso www.afonsoconsulting.com for building this software. I fixed a few bugs that created unconnected polygons and raised DRC errors.

qslice.ulp is the script that creates the PCB copper pattern. touch_pcb created the outline to form a touch sensor used by LittleHelper.

Have a look at the whole project to see why and for what kind of interfaces this is useful: http://www.appfruits.com/littlehelper