Projects/Netlight

Project Netlight
Name	Netlight
Start
End
Contact	Piet
Website
Information	The network traffic light at haxogreen
Status	Production

http://www.youtube.com/watch?v=uxdJv-h0Fks

Script

1. !/bin/sh

IP="8.8.8.8" TIMEOUT="2" GPIO_GREEN="23" GPIO_RED="24"

1. no user-servicable parts below

echo ${GPIO_GREEN} > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio${GPIO_GREEN}/direction echo ${GPIO_RED} > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio${GPIO_RED}/direction

while [ 1 ]; do

 ping -c 1 -W 2 -qq ${IP} > /dev/null 2>&1

 ec=$?

 if [ ${ec} -eq 0 ]; then
   echo "1" > /sys/class/gpio/gpio${GPIO_GREEN}/value
   sleep 3
   echo "0" > /sys/class/gpio/gpio${GPIO_RED}/value
 else
   echo "0" > /sys/class/gpio/gpio${GPIO_GREEN}/value
   echo "1" > /sys/class/gpio/gpio${GPIO_RED}/value
 fi

done

Gallery

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  Raspberry PI with a relay board connected to it