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adds infos about controlling the backlight

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Florian Klemenz 2022-05-05 12:39:03 +02:00
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@ -124,5 +124,16 @@ If you like to change the default, just edit the ```fbdash.timer``` file before
Wed 2022-05-04 14:16:10 CEST 28s left Wed 2022-05-04 14:15:10 CEST 31s ago fbdash.timer fbdash.service
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## Controlling the backlight
It's a bit counterintuitive but according to [Notro's wiki](https://github.com/notro/fbtft/wiki/Backlight) you can control the backlight like this (tested, works!):
Write a "1" to turn it **off**
echo 1 | sudo tee /sys/class/backlight/fb_ili9341/bl_power
and a "0" to turn it **on**
echo 0 | sudo tee /sys/class/backlight/fb_ili9341/bl_power