It happened when I was tidying up my desk drawer because I couldn't find something I was looking for. I found a small glass tube that I had bought a long time ago and forgotten about. I only had a ...

Let’s say you want to build a Nixie clock. You could go out and find some tubes, source a good power supply design, start whipping up a PCB, and working on a custom enclosure. Or, you could skip all ...

A large, WiFi-connected seven-segment clock built from addressable LED strips, driven by an ESP32. Each digit is drawn on a NeoPixel (WS2812) strip, the time is synchronised over the internet, and the ...

Stepper motors use a cogged wheel and electromagnets to rotate the wheel one ‘step’ at a time. Each HIGH pulse sent to the A4988 stepper driver energises the coil, attracting the teeth closest to the ...

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