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