#!/bin/bash

set -e 

echo in > /sys/class/gpio/gpio52/direction
echo out > /sys/class/gpio/gpio60/direction

# gpio60 high
echo 1 > /sys/class/gpio/gpio60/value
sleep 1

value52=$(cat /sys/class/gpio/gpio52/value)
value60=$(cat /sys/class/gpio/gpio60/value)
if [ "$value52" == "$value60" ]; then
    exit 1
fi

# gpio60 low
echo 0 > /sys/class/gpio/gpio60/value
sleep 1

value52=$(cat /sys/class/gpio/gpio52/value)
value60=$(cat /sys/class/gpio/gpio60/value)
if [ "$value52" == "$value60" ]; then
    exit 1
fi