I came across this and have found it to work with 3.81.
https://scribles.net/adding-power-switch...pberry-pi/
Heres something similar:
https://howchoo.com/g/mwnlytk3zmm/how-to...spberry-pi
Getting a LED going might help too (i've not tested this).
https://howchoo.com/g/ytzjyzy4m2e/build-...-indicator
https://scribles.net/adding-power-switch...pberry-pi/
Heres something similar:
https://howchoo.com/g/mwnlytk3zmm/how-to...spberry-pi
Getting a LED going might help too (i've not tested this).
https://howchoo.com/g/ytzjyzy4m2e/build-...-indicator