A kitchen timer is one of those projects that’s well defined enough to have a clear goal, but allows plenty of room for experimentation with functionality and aesthetics. [Hggh]’s exploration of the ...

When you’re lifting weights, you usually want to do a set of the exercise, rest a minute or two, and then do another. While you can gauge this by feel (just go when you feel ready), a timer can be ...

In a previous article, we explored the behavior of an LED diode as a small light source. We have seen how important a protection resistor is to light up this component. In this article, we will ...