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→How to handling gpio-leds
If you have '''successfully completed the [[Getting_Started_with_IGEP0030_board|getting started guide]]''' for IGEP0030, you can follow this first introduction about what can you do with this board:
= How to handling handle gpio-leds LED's = 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. IGEP0030 has 4 LED's which you can control, for example, using 'echo'. Here is an example of turning LED's On: <pre>echo timer > /sys/devices/platform/leds-gpio/leds/d210\:green/trigger</pre> You can turn them down using the same command and write '0' instead of '1'. (Note: read [[What_can_I_do_with_IGEP0030@Known issues|known issues]] below)<br> If you want to trigger the leds you can enable this mode and select the trigger source (none by default) to: mmc0, mmc1, timer, heartbeat and default-on.<br> To enable any of this modes you just have to change a parameter in the directory of the led you want to control. You can see all the possibilities using 'cat':<br> <pre>$ cat /sys/devices/platform/leds-gpio/leds/d210\:green/trigger none mmc0 mmc1 timer heartbeat [default-on]</pre> In the example above, we have checked the status of the trigger in led D240:green. Mode 'default-on' is selected. To change it, for example, to the timer mode you can use 'echo':<br> <pre>echo timer > /sys/devices/platform/leds-gpio/leds/d210\:green/trigger</pre> In this case, we have set the trigger to the 'timer' mode. Now you can set the time for what the led is ON and the time it is OFF using:<br> <pre>echo 250 > /sys/devices/platform/leds-gpio/leds/d210\:green/delay_onecho 750 > /sys/devices/platform/leds-gpio/leds/d210\:green/delay_off</pre> Now the selected led is configured with a timer consisting of 250 miliseconds ON and 750 miliseconds OFF.
= How to use wireless =
