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= How to handle the gpio-LED's<br> =
This is probably the most simple feature in the board, but sometimes LED's may be the only way of checking the status of some of your applications.
echo 750 > /sys/devices/platform/leds-gpio/leds/d240\:green/delay_off
</pre>
Now the selected led is configured with a timer consisting of 250 miliseconds ON and 750 miliseconds OFF.<br>
= How to use RS-485 =