Diskussionsthread - CarPi/CarPC Image 2016 (Raspbian Jessie, Kodi 15.2)

[cbrauweiler]

Code:

import os

os.system("sudo cat /sys/class/backlight/rpi_backlight/brightness > brightness.txt")

with open('brightness.txt') as f:
    for i in xrange(1):
        value = f.readline().rstrip()

        if 255 == int(value):
            os.system("echo 25 | sudo tee /sys/class/backlight/rpi_backlight/brightness")
            print "Display abdunkeln"
        else:
            os.system("echo 255 | sudo tee /sys/class/backlight/rpi_backlight/brightness")
            print "Display erhellen"

Kein Plan obs auch ohne txt zwischenspeichern geht, habs anders nicht hinbekommen weil python ne kleine hure is