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{{Table/IGEP Technology Devices| cellspacingTech_Family="0" cellpadding="5" border="1" align="center" width="100%" style="text-align{{#lst:Template: left;"Links|-IGEPv2_Tech_Family}}| bgcolorTech_ID="#cccccc" |'''IGEPv2 - Part 2/3'''|-| It is recommended that you '''follow the [[{{#lst:Template:Links|IGEPv2_Community_Guides_1IGEPv2_Tech_ID}}|previous chapters]]''' of this guide before continuing with this tutorial.|} {{Navigation/IGEP Technology Guides
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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.
<pre>echo 1 > 157 > /sys/devicesclass/platform/leds-gpio/leds/d240\:green/brightnessecho 1 > /sys/devices/platform/leds-gpio/leds/d240\:red/brightnessexport echo 1 > in > /sys/devices/platformclass/leds-gpio/leds/d440\:greengpio157/brightnessdirectionecho 1 > cat /sys/devicesclass/platform/leds-gpio/ledsgpio157/d440\:red/brightnessvalue</pre>
The board has another UART available on J960 connector (UART1). This UART is shared with RS485 so it'''Other functionalities'''s incompatible use both interfaces at the same time. For that reason to use UART1 for RS232 comunications you should disable RS485 interface. You can do this [[How_do_I_edit_my_kernel_command_line | adding following kernel cmdline parameter]]
== Get sound in (audio in) ==
Note that the board has been designed to use Line In for the audio input which means users need to add some type of pre-amp for a microphone to work or use a powered microphone. For a pre-amp for a microphone you can use MAX9812.
Following output is expected on console:
boundary : 1073741824
When ever you think you want to stop recording just press CTRL+C
[[Category:IGEP Technology Devices Guides]]