There are indeed circuits that can just cut off the power - the batteries Adafruit supplies come with that included.
I don't have links to specific tutorials. Google is your friend for that. Tutorials, schematics, etc.
There are indeed circuits that can just cut off the power - the batteries Adafruit supplies come with that included.
I don't have links to specific tutorials. Google is your friend for that. Tutorials, schematics, etc.