R-PI sleep

• Getting the Sleepy Pi to Shutdown the Raspberry Pi

Copy shutdowncheck.py script to /home/pi/bin/button/

#!/usr/bin/python
 
import RPi.GPIO as GPIO
import os, time
 
GPIO.setmode(GPIO.BCM)
GPIO.setup(24, GPIO.IN)
GPIO.setup(25, GPIO.OUT)
GPIO.output(25, GPIO.HIGH)
print ("[Info] Telling Sleepy Pi we are running pin 25")
 
while True:
   if (GPIO.input(24)):
      print ("Sleepy Pi requesting shutdown on pin 24")
      os.system("sudo shutdown -h now")
   break
time.sleep(0.5)

Run the script at startup

To run this script at startup, we must edit the

/etc/rc.local

In LXTerminal:

$ sudo leafpad /etc/rc.local

and insert the following line just before the final exit 0 and save changes:

python /home/pi/bin/button/shutdowncheck.py &

DONT forget the “&” which allows the script to run in the background!

Set permissions

On a fresh PI install you will need to set the permissions on

/etc/rc/local 

so that it can execute at startup.
To do this execute the following command from a terminal window:

sudo chmod u+x /etc/rc.local