Many billions of mechanical buttons in cell phones, cars audio systems, notebooks, PCs, white goods, and industrial applications have been replaced with capacitive sensing buttons. The use of ...

Capacitive sensing libraries for the Arduino and just about every other microcontroller platform have been around for ages now, but if you’d like to put a slightly complex cap sense pad in a PCB ...

Capacitive-Sensing Design Basics Capacitive-sensing technologies measure the capacitance of an electrode connected to the sensor’s input. The electrode being measured is often a printed-circuit-board ...

Electromechanical switches are simple, cheap, and widely available (Fig. 1). However, they’re also plagued with a number of disadvantages, including wear with repeated use, and the potential for ...

When [Daniel Eichhorn] designed the Pendrive S3 project, he wanted to use an off-the-shelf USB enclosure but also add a button for the user to start certain actions. Drilling a hole into the enclosure ...

In Part 1, we covered the basics of making capacitive sensing measurements, why capacitive sensing buttons are better than mechanical buttons, and the evolution of different types of capacitive ...