Pandora pandora LEDs?

[Tuxmmer]

I have a question, how to access the pandora LEDs from python? thanks

 

[StreaK]

actually good question [it would be nice if someone provide C/C++ snippet as well..]

 

[TrashyMG]

There is a way you can echo a command to a system device to change the states of the LEDs, I was hoping for some detail listing of commands but this is the best I found.


Link


once you know that, you could just import os and run a command line argument..

import os


os.system('some command line argument')

 

[Tempel]

According to that link, controlling LEDs is all about writing to specific files. So rather than running a shell command, you should write to the file in the usual way.

with open('/sys/class/leds/pandora::power/brightness', 'w') as led:

    led.write('255')

 

[Tuxmmer]

What are the names of all the LEDs and their equivalent?/sys/class/leds/pandora:ower/brightness

 

[ssokolow]

I just wrote a little demo and helper class for this.


Since it's a bit long and the board won't let me attach a Python source file, here it is on GitHub Gist: https://gist.github.com/2906766


Also, this post would probably be helpful.

 

[Kosmos]

Anyway to do it without a password?

echo 255 > /sys/class/leds/pandora\:\ower/brightness

Won't cut it.

I got the op_power.sh lid-event to work from a hotkey without password this way...

#!/bin/bash
# op_Standby.sh
# Assign this to a hotkey combo for instant SLEEP

# /usr/pandora/scripts/op_power.sh 0 <- Standby
# /usr/pandora/scripts/op_power.sh 3 <- Shutdown
# /usr/pandora/scripts/op_power.sh 0 lid <- for lid open event
# /usr/pandora/scripts/op_power.sh 1 lid <- for lid close event

sudo "/usr/pandora/scripts/op_power.sh" 0

#
# To make it a act as a standard command
# sudo cp ./bin/op_Standby.sh /usr/bin/op_standby

# PowerSettings require a password, therefore
# Edit the Suduers list in nano or you'll break the file
#
# sudo nano \etc\sudoers.d\50_openpandora
# "Add the following to the top of the file"
# %wheel ALL=(ALL) NOPASSWD: /usr/pandora/scripts/op_power.sh

I would like something similarly workable for the LEDs.

I tried a few related methods which did not work as we are writing to a file not running an executable.

Ideas? Solutions? Anyone?