#!/bin/bash

temp=""
cat /dev/ttyACM0 > /tmp/toto &

while [ -z $temp ] ; do 
	sleep 1	
	echo 1 > /dev/ttyACM0
	temp=`tail -n2 /tmp/toto | grep -a $1 | sed s/$1//`
done
if [ "$1" == "T" ]; then
	temp2=""
	while [ -z $temp2 ] ; do 
		sleep 1	
	echo 1 > /dev/ttyACM0
		temp2=`tail -n2 /tmp/toto | grep -a $1 | sed s/$1//`
	done
	temp3=""
	while [ -z $temp3 ] ; do 
		sleep 1	
		echo 1 > /dev/ttyACM0
		temp3=`tail -n2 /tmp/toto | grep -a $1 | sed s/$1//`
	done

	echo "scale=2;($temp+$temp2+$temp3)/5.2-61.5" | bc
else 
	echo "scale=1;$temp*1.2" | bc
fi