[arm-allstar] Door Alarm

[Dave Petrie]

Can someone edit the attached script so as to make it real simple, it works
nicely as is but I have another use for GPIO bit 21, I want to play a cw T
as soon as bit 21 goes low, one time play and no wait, play everytime bit
21 goes low. Reset to high within a second or two so a retrigger will be
heard. I understand play location.
This will only be on my node.
Thank You
Dave


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#!/bin/bash
sudo /usr/bin/asterisk -vvvvr -x "rpt playback 40039 /var/lib/asterisk/sounds/custom/dooron" 
# Door security check - Allstar Repeater Controller
# 

# Read Pi GPIO bit using interrupt
# Bit to use for door security
# GPIO bit 21 - physical pin 29
Bit=21

function wait_open {
#while [ 1=1 ]
#do
# Wait for pin 29 to open
 while [ 1=1 ]
 # wait for rising edge interrupt
   /usr/local/bin/gpio wfi $Bit rising
   do
   while [ $(/usr/local/bin/gpio read $Bit) -eq "1" ];
    do
      sleep 1
      let TIME1+=1
      if [ $TIME1 -gt 3 ]; then
         break 2;
      fi
   done
   TIME1=1
   continue
done
}

function open_message {
 # pin 29 is high - say message 
 echo "$(date) - pin 29 is high"
 /usr/bin/asterisk -vvvvr -x "rpt playback 40039 /var/lib/asterisk/sounds/custom/dooropen" 
}

function wait_close {
 TIME1=1
 while [ $(/usr/local/bin/gpio read $Bit) -eq "1" ];
  do 
    sleep 5
    let TIME1+=1
    if [ $TIME1 -gt 12 ]
       then
	   # Repeat message every 1 minutes
	   echo "$(date) - pin 29 is high"
	   /usr/bin/asterisk -vvvvr -x "rpt playback 40039 /var/lib/asterisk/sounds/custom/dooropen"
	TIME1=1	
    fi
  done
}

function close_message {
  # Door is locked - say message
  echo "$(date) - pin 29 is low"
  /usr/bin/asterisk -vvvvr -x "rpt playback 40039 /var/lib/asterisk/sounds/custom/doorsecure"
}

sleep 10
if [ $(/usr/local/bin/gpio read $Bit) -eq "1" ]
   then
     sleep 1
     open_message
     while [ 1=1 ]
     do
       wait_close
       close_message
       wait_open
       open_message
     done
   else
     sleep 1
     close_message
     while [ 1=1 ]
     do
       wait_open
       open_message
       wait_close
       close_message
     done
fi