#!/bin/bash

port=/dev/ttyUSB0
cmdfile=~/annunciatorServer.txt

## Setup serial port
stty -F $port ispeed 9600 ospeed 9600 -ignpar cs8 -cstopb -hupcl

## Setup files
touch $cmdfile

## Monitor file for new commands
while true
do
	incmd=$(head -c 1 $cmdfile)
	if [ _$incmd != _ ]
	then
		echo $incmd > $port
		> $cmdfile
	fi
	sleep 1
done