[Tenocticatl]

Hi!

(I'm very new to xbmc, python and programming in general, so I may say very stupid things. Please help me learn!)

The plan for my raspberry pi is a media center that can run, and be controlled, headless. Like a stereo set. I have an lcd working, now I want controls, and I want to use buttons hooked up to the gpio pins. The buttons work, but I can't get them to work with an xbmc python script.

The problem seems to be the permissions; the python plugin xbmc uses doesn't have root acces, which is required to use the RPi.GPIO python module.
Here's the code I've been using to check for button presses:

Code:

import RPi.GPIO as GPIO
import time
GPIO.setmode(BCM)
GPIO.setup(22, GPIO.IN)
while True:
    if ( GPIO.input(22) == False )
             print("Button pressed")
    time.sleep(0.1); #so I don't have to keep it pressed for too long.

which works if I run it through SSH. The 'print...' bit is a placeholder.
Say I want this button to mean 'navigate right', I figured my code should be:

Code:

import xbmc

xbmc.ExecuteBuiltin("right")

So my question is, how do I get this to work? That is, (I think,) how do I get xbmc the correct permission to do this? Or if someone has a different idea on how to do this, I'm all ears.

[Kib]

I think they might be able to help you in the Development subforum as it has a lot to do with the way XBMC works internally.

[Tenocticatl]

Okay thanks, I'll try that.

[s7mx1]

os.system("sudo python /path/to/your/gpio/script")

[Tenocticatl]

os.system("sudo python /path/to/your/gpio/script")

so I now have one script, default.py:

Code:

import os
os.system("sudo python /home/pi/.xbmc/addons/script.service.hardware.buttons/buttons.py")

and buttons.py:

Code:

import time
import RPi.GPIO as GPIO
import xbmc

GPIO.setmode(BCM)
GPIO.setup(22, GPIO.IN)
while True:
    if ( GPIO.input(22) == False )
             xbmc.executebuiltin("Right")
    time.sleep(0.1);

It doesn't give the 'fail to execute script' message on startup that it did before, but it doesn't do anything either. Wrong 'if' bit maybe?