enable gpio output when boot is complete

[Wallyboy]

Hi folks;  Does anyone have an idea on how I might enable a GPI pin when boot up is complete.  I can setup a service to enable the pin but I am not sure how to have the action taken only after the boot up process has finished.

Thanks

[taichauchau]

hi, I also need this function since my external power control circuit detects gpio HIGH when boot succes and goes LOW for shuting down.

[Tim Curtis]

Run the commands below. If they all return "1" then high likelihood that moOde has successfully completed its boot sequence and all is well.

Code:

pi@rp1:~ $ moodeutl -q "select value from cfg_system where param='wrkready'"
1
pi@rp1:~ $ pgrep -c watchdog.sh
1
pi@rp1:~ $ pgrep -c mpd
1

[adrii]

Hi Wallyboy

I use the following in a (longer) shell script to pause until the Moode boot has completed (it doesn't check that MPD has started)

Code:

  ...
  # wait for worker to start to ensure start flag is set to 0
   until ps -C worker.php > /dev/null; do
      sleep 2
   done
   sleep 1     # extra time allow to set flag
   until test $(moodeutl -q "select value from cfg_system where param='wrkready'") = "1"; do
      sleep 4
   done
...

If you are using a systemd service file then you can wait for a script to complete using an ExecStartPre line 

Adrian.