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 ...

We all know the e-ink persistent displays, as they’re cheap and plentiful enough to have become ubiquitous in applications such as supermarket price labels. But we don’t often see some of the other ...

I didn't expect to love it, and it has a learning curve, but the possibilities are endless.

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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