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2. Dezember 2019 at 11:55
#47654
OK, found another post that seems to make more sense.
dtoverlay=pi3-act-led,gpio=22
dtparam=act_led_trigger=heartbeat
Above lines seem to have no effect on the LED at runtime (when hacked to the console).
They need to go into config.txt
At runtime the LEDs can be controlled with the
/sys/class/leds/led0/trigger
Will test this later and report how it works.