Hello,

OPi3 has a red LED (which lights up when USB device is connected). Is there a way to control it or simly turn off?

 

According to schematic, there is no such LED controled by USB, there is a red LED, but it is connected as PWR-LED on PL4.

 

To turn it off :

echo "none" > /sys/class/leds/orangepi\:red\:power/trigger
echo 0 > /sys/class/leds/orangepi\:red\:power/brightness

 

@martinayotte

There are 3 LEDs, according to my OPi3

Specification: http://www.orangepi.org/Orange Pi 3/

"LED: Power LED, Status LED and USB3.0 LED"

 

In /sys tree there are two controls only (for red power and green status)

I have turn off red power (dont like this intensive color in dark) and green set as USB activity signaling. But can't turn off red USB LED.

 

12 hours ago, dziobak said:

But can't turn off red USB LED.

I don't find such USB LED on the schematic ...

Can you provide a picture which can shows it's location ?

BTW, with Armbian Mainline image, I'm able to toggle both STATUS and POWER with a script using command I've mentioned ...

My OPi3, red USB LED is lightning only:

17 minutes ago, dziobak said:

My OPi3, red USB LED is lightning only:

According to schematic, this one is effectively attached to USB3 hub on the PLED/FN_C pin.

But I don't think it can be controled via kernel. Only way to get rid of it would be to break it ...