The relatively low operating voltage of many LED-driver ICs prevents them from driving multiple LEDs in series, but you can circumvent this limitation by adding a common-base-transistor level shifter ...

Bubble-type levels have been around for hundreds of years, and even digital models with LCD numerical displays aren't exactly new. A group of Montreal-based entrepreneurs have come up with something a ...

As with everything these days, traditional devices are being recreated into 21st-century electronic alternatives, one such device is the spirit level which has been given an electronic upgrade using ...