Adjusting the brightness of the LCD7

Has anyone adjusted the brightness of the LCD7 cape to make it brighter? The specs show that it is rated for 300 NITs, but out of the box it looks to be about half of that. I was wondering how I could increase the brightness, or at least make sure that it is as bright as it can go. Thanks!


On Angstrom desktop, you can go to System > Preferences > Power Management and drag the brightness slider to change the LCD screen brightness level.

Another method is using this command at the prompt: echo 100 > /sys/class/backlight/pwm-backlight/brightness
100 is full brightness, 0 is no brightness. The default setting is 50.

Hieu Duong

Awesome! That works great. Thanks!