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Old 07-22-2017, 08:00 AM   #1
SCerovec
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Registered: Oct 2006
Location: Cp6uja
Distribution: Slackware on x86 and arm
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Lightbulb fancy (yet useful) heartbeat pulse on a green LED


on BeagleBone Black, which isn't running any Slackware yet (at least here on my place) there is a fanciful eye caching feature present:

The hear-beat like pulse on a led.

it is most useful for an headless computer to quickly (at a single glance) discern it's load and simple works or is locked state.

Any more than that would need an monitor or a proper "blinkenlichten" panel.

So i figured, why not have it working in Slackware too?

To my surprise i found none "easy way" writeup, so i figured i make one here?

Okay here goes (ready to paste in rc.local):
Code:
# hearbeat madule load for green led:
modprobe -av ledtrig-heartbeat

echo "heartbeat" > /sys/class/leds/orangepi\:green\:pwr/trigger
for my orange PI PC
or
Code:
# hearbeat madule load for green led:
modprobe -av ledtrig-heartbeat

echo "heartbeat" > /sys/class/leds/bananapi\:green\:usr/trigger
on my banana Pi M1

ammounting to:
Code:
# hearbeat madule load for green led:
modprobe -av ledtrig-heartbeat

echo "heartbeat" > /sys/class/leds/*\:green\:*/trigger
for any green LED to be triggered as heartbeat indicator.

I post this in hope someone finds this useful.
 
  


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