Learn how to make a touchless air drum set using Arduino and ultrasonic sensors for endless musical fun. ‘That Has Never Been ...

One of the joys of writing up the entries for the 2025 Component Abuse Challenge has come in finding all the different alternative uses for the humble transistor. This building block of all modern ...

To our younger readers, a car without an all-touchscreen “infotainment” system may look clunky and dated, but really, you kids don’t know what they’re missing. Buttons, ...