(2017-08-17, 08:11 PM)jswalwell Wrote: Expensive. I've power cycled via the breaker panel my openplotter setup several hundred times over the last year and a half with no SD card corruption issues. I switch between batteries, start the engine, etc. and have no problems. And anyway, what good is a powered pi if all the nmea sources have shut down after my batteries have run out? For $10 you can carry around a spare SD card. For $138 and shipping you can carry 14. Am I missing something?
Something like this?
I sample for my solar shed also to prepare a change to lipos i need arround 700 lipos.
https://youtu.be/0z_f13Pv8ug
For the moment i go this way but what they put in in the hat i guess its not overpriced. Allways exists a cheaper method.
cases are 3d print. Apropos: the lipos from old notebooks you can get for free. and they work with a cheap pwm solar charger also not bad, if you go to a 24 Volt system. Just recycling and works realy good.
https://www.youtube.com/watch?v=m20o3P-S...ZP&index=4