TTP223 Capacitive Touch Sensor

The touch sensitivity is spot-on—it triggers perfectly through a thin acrylic panel I placed over it. The onboard LED gives a clear visual confirmation, which is handy for my interactive art project.

Finally got around to testing this little touch sensor and the 5mm sensing range works perfectly through a thin plastic panel. The onboard LED makes it super easy to see when it's triggered. Exactly what I needed for a simple touch switch project.

The touch sensing is pretty responsive, and the on-board LED gives a nice visual confirmation when it's triggered. Would have liked a slightly larger pad area for my project, but for the price it works well.