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).
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.