RetroPi On/Off Switch

apt-get with the following command :


   1.  sudo apt-get install update

   2.  sudo apt-get install python-dev

   3.  sudo apt-get install python3-dev

   4.  sudo apt-get install gcc

   5.  sudo apt-get install python-pip

Next you need to get RPi.GPIO:

   6.  wget https://pypi.python.org/packages/source/R/RPi.GPIO/RPi.GPIO-0.5.11.tar.gz


Uncompress the packages:

   7.  sudo tar -zxvf RPi.GPIO-0.5.11.tar.gz



move into the newly created directory:

   8.  cd RPi.GPIO-0.5.11


install the module by doing:

   9.  sudo python setup.py install

   10.  sudo python3 setup.py install


creating a directory to hold your scripts:

   11.  mkdir /home/pi/scripts

call our script shutdown.py (it is written in python). Create and edit the script by doing:


   12.  sudo nano /home/pi/scripts/shutdown.py


The content of the script: Paste it in the blank area

#!/usr/bin/python
import RPi.GPIO as GPIO
import time
import subprocess

# we will use the pin numbering to match the pins on the Pi, instead of the
# GPIO pin outs (makes it easier to keep track of things)

GPIO.setmode(GPIO.BOARD)

# use the same pin that is used for the reset button (one button to rule them all!)
GPIO.setup(5, GPIO.IN, pull_up_down = GPIO.PUD_UP)

oldButtonState1 = True

while True:
    #grab the current button state
    buttonState1 = GPIO.input(5)

    # check to see if button has been pushed
    if buttonState1 != oldButtonState1 and buttonState1 == False:
      subprocess.call("shutdown -h now", shell=True,
        stdout=subprocess.PIPE, stderr=subprocess.PIPE)
      oldButtonState1 = buttonState1

    time.sleep(.1)


Press CRTL X  Then Y



Restart the pi

	13.  sudo reboot

configure our script to run at startup,

   14.  sudo nano /etc/rc.local


Add the following to the file

   sudo python /home/pi/scripts/shutdown.py &

Press CRTL X  Then Y