I have a Raspberry Pi project powered by LiPo via an Adafruit Powerboost 500C. Trying to maximize battery life without changing platforms (yet).
My solution is to incorporate the Adafruit TPL5111 to wake the device every once in while but shutting it down will be the problem.
The TPL5111 needs a GPIO shutdown signal from the Pi (so obviously the Pi is powered on to do that) but as soon as the TPL5111 receives that signal, power is cut completely.
Mounting the partitions as read-only is one way to minimise SD card corruption but id rather have circuitry that keeps the power flowing long enough after the signal is received for the Pi to shutdown safely.
Are there any (simple and small sized) solutions i could employ? Maybe a simple capacitor setup or something?
Space is VERY tight as it is so that's issue number 2...
Thanks in advance!