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en:xu4_led_control [2017/05/12 21:27] odroid |
en:xu4_led_control [2017/05/12 21:30] odroid |
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We can control the <color #00a2e8>**blue LED**</color> with the trigger node in sysfs. | We can control the <color #00a2e8>**blue LED**</color> with the trigger node in sysfs. | ||
+ | But the red LED is hard-wired to the power input rail and we can't control it. | ||
**Turn off** | **Turn off** | ||
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- | If you want to turn the <color #00a2e8>**LED**</color> off permanently, edit /etc/rc.local file to add "echo none > /sys/class/leds/blue\:heartbeat/trigger". | + | <note tip>If you want to turn the <color #00a2e8>**LED**</color> off automatically in boot process,\\ add "echo none > /sys/class/leds/blue\:heartbeat/trigger" line in /etc/rc.local file</note> |