I have set up the gpio-poweroff overlay on my Raspberry Pi Zero W but when I shutdown (either -h or -P) rather than a straight transition to logic high, there seems to be a single 5Hz cycle. It is repeatable.
I am wondering if:
- this is the same on all models of RaspberryPi?
- this is expected bahaviour?
- if expected, is this desired behaviour or the result of a limitation?