RandomVideo/buzzer.sh

#!/bin/sh

buzzgpio=0
strobogpio=2
swupgpio=23
swdowngpio=25

cmdgpio="$(command -v gpio)"

$cmdgpio mode $buzzgpio in

$cmdgpio mode $strobogpio out
$cmdgpio write $strobogpio 1

$cmdgpio mode $swdowngpio in
$cmdgpio mode $swupgpio in

cmdonairstat=0

while true; do
	
	if [ "$cmdonairstat" -eq 1 ]; then
		cmdonairstat=0
	fi

	buzzerstat="$($cmdgpio read $buzzgpio)"
	swupstat="$($cmdgpio read $swupgpio)"
	
	if [ "$buzzerstat" -eq 0 ] && [ "$swupstat" -eq 0 ]; then
		/home/pi/RandomVideo/RandomVideo.sh buzzer
		$cmdgpio write $strobogpio 0; sleep 1; $cmdgpio write $strobogpio 1 &

		sleep 1

	elif [ "$swupstat" -eq 1 ]; then

		while [ "$swupstat" -eq 1 ]; do

			if [ "$cmdonairstat" -eq 0 ]; then
				echo "On air!"
				cmdonairstat=1
			fi
			
			swupstat="$($cmdgpio read $swupgpio)"
			
			sleep 0.1
		done

		echo "Off air!"

	elif [ "$buzzerstat" -eq 1 ] && [ "$swupstat" -eq 0 ]; then
		sleep 0.1

	fi

done