I started to create a schematic for a capacitive sensing circuit to be used in an interface for a project I'm working on. I'm using Quantum's QTouch QT240 IC. I have yet to use PCB and I'd like to get suggestions on how to represent the electrodes and their footprints in the schematic.
I'm using the following application note: http://www.qprox.com/Assets/Downloadablefile/an-kd02_103-touch_secrets-16362.pdf I'm going to use a back-firing configuration with LEDs similar to figure 10. Where I have yet to use PCB how do I create these electrodes? I appreciate all suggestions and advice. Thanks, Rob
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