A pal of [Kyle’s] was regularly leaving his sprinkler on for too long. He also had forgotten to turn the water off while topping off his pool a couple of times, an embarrassing and wasteful situation.

One generally reads a data sheet in one of two ways. The first is to take every spec at face value, figuring that the engineers have taken everything into account and presented each number as the ...

For one of my hobby projects, I needed to add a small countdown timer at an affordable cost. Fortunately, a DigiSpark Attiny85 development board was lying around on my workbench. The next component ...