TAPR's John Ackermann N8UR details this little Arduino based device - he calls it a stopwatch - that will measure time to the trillionths of a second. Why does anyone need that, when, according to Star Trek, it's possible to give verbal start-stop commands controlling spacecraft going faster than light? Aaaaand... Go! But we digress. 

This is a fully assembled device, not a kit (Gary will make that mistake in the intro).

There are lots of charts and diagrams, so the Radio Rating is D+, though if you're already conversant with the material, John's description might carry you through. If not, enjoy Gary's diversion for the first 8 minutes, then skip to YouTube.

http://tapr.org/kits_ticc.html

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