+#!/bin/sh
+
+GPIO=$1
+
+trap "" INT HUP
+
+echo $GPIO > /sys/class/gpio/export
+echo out > /sys/class/gpio/gpio${GPIO}/direction
+
+while true; do
+ echo 1 > /sys/class/gpio/gpio${GPIO}/value
+ sleep 1
+ echo 0 > /sys/class/gpio/gpio${GPIO}/value
+ sleep 180
+done