Blink LED on i.MX 8M Plus
To blink the LED on your virtual i.MX 8M Plus device, do the following:
Create a new virtual i.MX 8M Plus device as explained in the Quickstart for i.MX 8M Plus tutorial, or go to an already existing device. Ensure that the Linux console is logged in. Note the LED representation at the right-bottom of the screen. In the default state it is on and solid.
To blink the LED type
echo heartbeat > /sys/class/leds/yellow:status/trigger
into the console. The LED will now be blinking.