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Automatically Powering down the Mains Supply for a Raspberry Pi @Raspberry_Pi #PiDay #RaspberryPi

via Element 14 Community

One of the few things that bugs me about shutting down the the Raspberry Pi is how I need to toggle the power supply to start it back up. There are a few solutions around, like an inline power switch, or the MoPi shield.. or just pull the micro USB plug out of the socket & plug it back in again. None of these I was particularly impressed with, and I wanted something a bit more intuitive & automated (which makes it easier for the kids and wife to use).

In a previous project, I’d used an Energenie power socket to turn a bass speaker off/on with the TV, and I had a spare socket (there are 2 in the box) doing nothing. What I’ve been able to do is set up a PHP script on the Pi that has the Energenie controller & have that control a socket that another Pi is connected to. When the other Pi is shutting down, I can call that PHP script and tell it to turn off the socket after a few seconds (giving the Pi enough time to shut down).

See full breakdown here!


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