Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
en:xu4_led_control [2017/05/12 21:26] odroid |
en:xu4_led_control [2017/05/12 21:31] odroid |
||
---|---|---|---|
Line 1: | Line 1: | ||
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** | ||
Line 24: | Line 25: | ||
- | If you want to turn the **LED**<color #00a2e8>Turquoise Highlighted Text</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 <color #ff7f27>echo none > /sys/class/leds/blue\:heartbeat/trigger</color> line in /etc/rc.local file</note> |