Yes, you can use "dtoverlay=gpio-shutdown,gpio_pin=27" but I wanted something with a little more feedback for someone other than me that was directed to shutdown my weather station. I took the same approach as the OP.
I use subprocess but if you add sudo then it should work. Here's snippet of the code I useThis works fine in terminal, but I understand that it cannot simply be a cronjob as it requires root privilege for the OS functions.
Code:
from gpiozero import LED, Buttonfrom subprocess import callfrom time import sleep ...led = LED(19) # GPIO 19led.blink() # Indicates running and waiting for button pushbutton = Button(6) # GPIO6 ...if button.is_pressed: print("Button pressed") led.on() # Led user know the button pressed detected sleep(5) # User has to hold the button down if button.is_pressed: led.off() # Let user know reboot/shutdown in progress sleep(1) if shutdown: print("Shutting down") call(["sudo","shutdown","-h","now"]) else: print("Rebooting") call(["sudo","reboot"]) return __failure__ # Should never get here else: led.blink() # Let user know reboot/shutdown was not initiatedWhile systemd can be a strange beast, it does work well. Here is the service definition for the above program.From my understanding, this would be best handled by systemd. Does this sound like the correct direction to go in? Nothing is "easy" so I'm trying to avoid wasting time on the wrong things.
Code:
[Unit]Description=Reboot Button ServiceAfter=systemd-time-wait-sync.serviceWants=systemd-time-wait-sync.service[Service]Type=idleUser=piExecStart=/usr/bin/python3 -u /media/work/bin/button_action.pyc --shutdownWorkingDirectory=/media/workStandardOutput=append:/media/work/log/srv_reboot_button.logStandardError=append:/media/work/log/srv_reboot_button.logRestart=no[Install]WantedBy=multi-user.targetStatistics: Posted by DS256 — Mon Aug 05, 2024 6:49 pm