safe shutdown funtion This is a power button for Raspberry Pi 3 / Pi0 / Pi0w. How to setup. You should make sure you have wiringPi and git-core installed before you git clone the repository! sudo apt-get install -y wiringPi sudo apt-get install -y git-core cd ~ git clone this repo sudo cp ~/sound_hat/gpioshutdown /etc/init.d/ sudo chkconfig --add gpioshutdown sudo chkconfig --level 2345 gpioshutdown on sudo sync , and sudo reboot