using rrdtool to graph the data from the TED 5000 Power Monitoring Tool
see example at: http://liskl.com/power/
Add to crontab * * * * * /home/liskl/TED5000.sh $IP_OF_TED_GATEWAY 0
create initial rrd database rrdtool create /var/www/power/ted5000.rrd --start now --step 60 DS:watts:GAUGE:120:0:20 RRA:MAX:0.5:1:525949
update script TED5000.sh
BASE_IMAGE_DIR="/var/www/power" RRD_FILE_PATH="/var/www/power/ted5000.rrd";