This simple STM setup utilises a piezoelectric actuator constructed by deliberately cutting a piezo speaker into four quadrants. With individual drive wires attached to the four quadrants.

One of the first lessons you learn when you get a bike is to use a motorcycle security of some kind or else it might not be there when you return. However, that ‘might’ from 20 years ago has ...

Here at PCMag, we've been testing smart locks since they first hit the market. We evaluate all of the most popular models, installing and testing them in our own homes to help you decide which one ...