We’ve seen a few H-bridge circuits around these parts before, and here’s another application. This time we have an Old Train ...

Over the decades we have seen many DIY clocks and wrist watches presented, but few are as likely to get you either drawing in the crowds, or quietly snickered at behind your back, as a binary ...

You need a rasbperry pi 4 or greater, an Adafruit RGB Matrix HAT (or similar), RGB matrix, and sensors (I'm using sht31d, sgp30, and veml7700 from Adafruit). Once ...

A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix. This kind ...