More info on https://mausberry-circuits.myshopify.com/
This replaces the setup.sh and switch.sh scripts of Mausberry. It watches the shutdown circuit so that when the button is switched to OFF it can shutdown the machine cleanly.
The big difference between this code and the code from Mausberry is that this does not run a loop to check the state of the GPIO pin, but uses an interrupt and thus uses a lot less resources.
Python 3 Python module RPi.GPIO
make install
sudo systemctl daemon-reload
sudo systemctl enable mausberry
make uninstall
sudo systemctl daemon-reload
MIT license, see the LICENSE file.