diff --git a/docs/tutorials/building-capacitive-touch-sensor.mdx b/docs/tutorials/building-capacitive-touch-sensor.mdx new file mode 100644 index 0000000..a714b4a --- /dev/null +++ b/docs/tutorials/building-capacitive-touch-sensor.mdx @@ -0,0 +1,54 @@ +--- +title: Building a Capacitive Touch Sensor +description: Learn how to design, route, and test a single-button capacitive touch sensor that uses polygon pads and a touch controller. +--- + +## Overview + +Capacitive touch sensors replace mechanical buttons with copper shapes that detect when a finger changes their electric field. In this tutorial you will: + +- Draw a capacitive electrode using `polygon` surface-mount pads. +- Connect the electrode to a capacitive touch controller. +- Route the traces, ground reference, and LED indicator for feedback. +- Simulate the PCB stackup with `tscircuit` before ordering the board. + +import CircuitPreview from "@site/src/components/CircuitPreview" + +The finished design exposes a responsive touch pad that lights an LED when it is activated. + + ( + + + + + + + } /> + + ) + `} +/>