5v UPS

[abarrow]

Yes, I did misunderstand your setup for shutdown. The reason I was thinking that a microcontroller might be good is when I was thinking through the logic of when a clean shutdown might be required. For example, I might want my pi to ride through a momentary power loss of a few seconds, and then if the power loss persists, send a shutdown signal via GPIO. Also, it might be useful in extreme cases to have a power switch that would allow me to initiate a clean shutdown with a single momentary press, and a forced power off when the button is held for 10 seconds, like on a PC.

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