Max2Play Home 2016 (en) › Forums › General Questions on Hardware and Max2Play Versions › Use external LED to indicate activity (heartbeat) on RPi3B+ › Reply To: Use external LED to indicate activity (heartbeat) on RPi3B+
This is how it works.
Edit /boot/config.txt and add this:
# Redirect activity LED to an external LED connected to GPIO5 dtoverlay=pi3-act-led,gpio=5 dtparam=act_led_trigger=heartbeat # Disable PWR LED dtparam=pwr_led_trigger=none dtparam=pwr_led_activelow=off
I disabled the power LED also on that occasion.
This thread can be considered solved.