I have a project where the Beagle is collecting data in a remote location so it must run off of batteries. I need to power off everything on the processor that can be, then I need it to be in a deep sleep mode, then every 5 minutes or so, wake up, take some data and the go back to sleep.
What things can be powered off, both on chip and on board? I see some discussion about powering off the HDMI. How do I do this?
Do I need to power off the PRUs? What else?
I see echo mem > /sys/power/state puts the Bone into a low power mode. How do I get it out of the mode? Would a crontab entry wake things up?
Thanks for any help.