Shell command for querying temperature with Sensatronics
temperature sensor Model F plugged into S0
http://www.sensatronics.com/products_temperature_monitor.php

( stty -F /dev/ttyS0 sane -echo -icrnl 9600 ; sleep 1 ; echo -n "Q" ; awk '/^Bat/ { exit } { printf "%.1f\\177C\n", $1; exit }' > /var/probe1.txt ) > /dev/ttyS0 < /dev/ttyS0