> I think what I am leaning on doing is providing 5V directly to the VDD_5V > connector with a diode fused battery+external power through a controllable > regulator, and then using a tiny micro (most likely a PIC) to monitor power > loss and then trigger an interrupt on a pin to cause the shutdown, then > wait for the shutdown and then turn off power. If power comes up during > this process, the front end can halt powering the BBB until it is fully > down. > > I'll get a couple BBBs to experiment and if this works, I'll post what I > came up with. > > You might find the Beaglebone Power Cape <http://andicelabs.com/beaglebone-powercape/> from Andice Labs interesting.
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