This simple LED driver circuit allows us to drive up to seven LEDs by using a single NiMH (Nickel Metal Hydride) AA cell. The circuit produces voltage pulses at a much higher level than the input ...
Looking for something with a bit more style than the traditional kitchen timer, [Martin Jonasson] decided to take the last couple of months to design and build his own take on the idea using a rotary ...
This is a simple circuit named “Reaction Timer Gamer” in which you have to target a particular LED given by your challenger. And if you hits the correct one, 10 points will be given. This is a simple ...
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