Friday, July 3, 2015

Getting those final test runs in

After a few days in the garbage pail simulation, I figured we'd get a realistic current usage for 24 hours with all the circuitry running.  We put a  Vernier current logger in line and took readings every  6 minutes.  Vernier has a good statistics function so I could get the total consumption over the day (the integral- for all you calculus folks).  Pretty much was as predicted ~.84 amps/day.  Definitely puts us comfortably in the zone for leaving the station for a month with a 42 amp-hour battery (50 days, in theory). .  There's enough room in the box to put two batteries in parallel for a seasonal duty cycle, but we'll hold off on that until this project proves it's mettle over a 30 day field test.




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