[Todd Harrison] really has our number. Like him, we don’t want to spend money when we don’t have to, and hacking our own solutions is a lot more fun anyway. This time around he’s … ...

The duders over at cookinghacks put together an Arduino based geiger counter. It's set up to click a speaker at every pulse for an immediate indication of radioactivity.

About the spark of an idea In this session, you can find some outline details for converting the introduced digital RPM counter into a pulse-per-minute counter. Such a modification might help you to ...

Making a microcontroller perform as a frequency counter is a relatively straightforward task involving the measurement of the time period during which a number of pulses are counted. The maximum fr… ...