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= Overview =
In this second chapter, we will learn some basics tasks. Upon completion, you will be ready to continue with chapter 3/3 that explains more advanced tasks.
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= What can I do =
userspace. LEDs appear in /sys/class/leds/ and you can turn on and off with following commands:
<pre>$ echo 1 > /sys/devices/platform/leds-gpio/leds/d242\:green/brightness$ echo 1 > /sys/devices/platform/leds-gpio/leds/d441\:green/brightness$ echo 1 > /sys/devices/platform/leds-gpio/leds/d442\:green/brightness</pre>
A detailed guide on how use GPIO-LEDS can be found by following this link: [[How to handle the gpio-LED]]