#!/bin/sh

set -e
if [ ! -d "/sys/class/gpio/gpio268" ]
then
	echo 268 > /sys/class/gpio/export
fi
cd /sys/class/gpio/gpio268
echo out > direction
# about 16 kHz

while true
do 
	echo 1 > value
	sleep 0.000122
	echo 0 > value
	sleep 0.000122
done