I'm trying to make an arduino uno output times to serial, sort of a external stopwatch,
and I have managed to do this. But I was wondering if it is possible to start the sketch,
and the timing, before I connect the arduino to the pc, so that I can start in one place,
and then move to the "finish line", without having to move the computer also.
On the uno it is a pad to the left of the resistor pack marked reset close to pin 14 of the ATmega chip, slice the thin wire in between and add a solder blob to reconnect.