I've been walking a lot around an indoor track this winter. I want a device that will note the end of a lap every time I press of a button, calculate the elapsed time since last press and display that as most recent lap time, plus - at the press of another button - cycle through lap count/min/max/avg/median, plus total session time. Lap times are no more than two digits worth of seconds with perhaps a tenth for spurious accuracy. Total session times can be two digits worth of minutes, with tenths of minutes, ditto. I would like a way to easy offload the day's times to another device.
So I imagine I don't need a lot of parts here:
- a pi Zero (maybe even an Arduinio, but I know nothing about those)
a couple of buttons
a modest NN.NM multi-segment display, where N is a number and M indicates mode (somehow)
a custom case
some kind of shim that allows:
a battery pack for portability
I'm very familiar with the PI, totally unfamiliar with an Arduino, although I gather the Arduino could be fine for simpler use cases and also lower power.
This seems like a matter of ordering a few parts, hacking it together with some very simple software, and figuring out the case after
I have the size and shape settled. Unless some electrical tape suffices.