There are as many varieties of smart light switches (and dimmers) as there are light bulbs, and while the prospect of upgrading your old dumb switch might seem daunting, they’re usually pretty simple ...

While thinking about my bathroom mirror light project (https://www.edn.com/elegant-bathroom-mirror-lights/), I was surprised to note that there are many dedicated ...

The look and feel of just about every gadget imaginable could be changed by technology supplied by a pair of Chicago-area companies that are promoting a major switch switch. It’s a subtle, but ...

This is a very simple touch light switch circuit that uses the 4011 IC, one transistor and a relay. The C1 capacitor stores the switching state at a certain time and is charged or discharged according ...

Imagine a bulletproof iPod. It’s possible with new touch sensors that use resonant sound instead of capacitance. • Trapped acoustic resonance is most simply described with an analogy: the ringing of a ...

Apple is examining a shift from a force sensor in AirPods to a capacitive touch system to make a set easier to control, and provide new options. The latest in Apple's surprisingly long history of ...