107 lines
2.6 KiB
Bash
Executable File
107 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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logger $0 1=$1 2=$2
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BEAMERIP=$(cat $(dirname "$0")"/beamerip.txt")
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function raisescreen() {
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echo "Rolling projection screen up"
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ssh pi@doorbuzz 'doorbuzz/projectionscreen.sh up'
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}
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function lowerscreen() {
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echo "Rolling projection screen down"
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ssh pi@doorbuzz 'doorbuzz/projectionscreen.sh down'
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}
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function beameroff() {
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echo "Switching beamer off"
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wget -qO/dev/null http://$projip/tgi/return.tgi?command=2a3102fd0660 #projector off
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}
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function beameron() {
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echo "Switching beamer on"
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wget -qO/dev/null http://$projip/tgi/return.tgi?command=2a3101fe0660 #projector on
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}
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function usage() {
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echo "Usage: $0 (beamer|screen) (on|off|down|up)"
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exit
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}
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projip="$(cat $(dirname "$0")"/beamerip.txt")"
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case $1 in
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beamer)
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case $2 in
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on) beameron
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;;
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off) beameroff
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;;
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*) usage
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esac
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;;
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screen)
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case $2 in
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down|on) lowerscreen
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;;
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up|off) raisescreen
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;;
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*) usage
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esac
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;;
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*)
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usage
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;;
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esac
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exit
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if [ "$1" = "off" ]
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then
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(
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echo "called with parameter $1"
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projip="$BEAMERIP"
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if [ "$projip" = "" ]
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then
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echo "no projector IP found"
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arp -a
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raisescreen
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exit
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fi
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signalsource="$(wget -qO - 'http://'"$projip"'/tgi/return.tgi?query=info' |awk -F'[<>]' '/<info>/{print substr($3,33,2)}')"
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if [ "$signalsource" = "00" ] || [ "$signalsource" = "15" ] || [ "$signalsource" = "" ]
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then
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raisescreen
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echo "wget http://$projip/tgi/return.tgi?command=2a3102fd0660 #projector off"
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wget -qO - 'http://'"$projip"'/tgi/return.tgi?command=2a3102fd0660' 2>&1
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echo $?
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else
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echo "not disabling projector because source is at $signalsource"
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fi
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) | logger -t "$(basename $0) $$"
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exit
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fi &
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if [ "$1" = "off" ]
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then
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exit # because the if before is in background
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fi
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prevstatus="unknown"
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while true
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do
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if [ $(date +%H) -eq 23 ]
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then
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pingall
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fi
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projip="$BEAMERIP"
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# from the acer webpage we read that bytes 30-31 contain 00 if power off and 01 if power on
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# we only test if 01, because if off, it can also give no response
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# but seems to be bytes 32-33 more accurate
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statusbyte="$(wget -qO - 'http://'"$projip"'/tgi/return.tgi?query=info'|awk -F'[<>]' '/<info>/{print substr($3,31,2)}')"
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if [ "$statusbyte" = "01" ]
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then
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if [ "$prevstatus" != "on" ]
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then
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logger -t $(basename $0) "$$ Projector is on"
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ssh pi@doorbuzz 'doorbuzz/projectionscreen.sh down'
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prevstatus="on"
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fi
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else
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if [ "$prevstatus" != "off" ]
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then
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logger -t $(basename $0) "$$ Projector is off"
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prevstatus="off"
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fi
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fi
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sleep 10
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done
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