Shutdown Switch shuts pi down permanently!

mattatclc

I've followed the instructions as per http://pimame.org/forum/discussion/comment/1983#Comment_1983 which if I understood correctly installs a python package which allows for shutdown and sets up a python script to shutdown upon button press.

I have one of these connected to the GPIO - http://www.maplin.co.uk/p/gpio-board-with-terminal-block-for-raspberry-pi-n31nt

Then to pin P17 and GND the 2 cables from a press switch (http://www.arcadeworlduk.com/products/Happ-Mini-Round-Momentary-Arcade-Button.html)

I've followed this process twice now but both times on boot up the pi powers up but powers down pretty much straight away.

Is my set up wrong somehow?

I set the pi to boot straight into the mame4all menu system if that matters?

mholgatem

mattatclc

Thanks I'll go through this and give it a try...

mattatclc

Thanks for your help. It definitely is GPIO17 because Maplin's terminal block maps to GPIO17. I connected one end of the plunger to GPIO17 and the other to GND.

I've changed the code as follows:

import RPi.GPIO as GPIO
import time
import os
GPIO.setmode(GPIO.BOARD)
GPIO.setup(17, GPIO.IN,pull_up_down=GPIO.PUD_UP)
while True:
print GPIO.input(17)
if(GPIO.input(17) == False):
os.system("sudo shutdown -h now")
break
time.sleep(1)

Then saved this as shutdown.py and edited file /etc/rc.local to add:
python /home/pi/bin/shutdown.py &
(before last line)

Still no working...

I know that I have the pi booting straight into Mame4All by adding a line in the .profile file. Would this somehow stop the rc.local file from loading and therefore not executing the script?

mattatclc

This is solved now - thanks for your help.

The GPIO.BOARD did need to be GPIO.BCM - works perfect...

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