Mercurial > ~darius > hgwebdir.cgi > iec1107
diff README @ 9:139e267c9965
Use DERIVE instead of counter.
Add graph example
| author | Daniel O'Connor <darius@dons.net.au> |
|---|---|
| date | Thu, 21 Nov 2013 00:01:28 +1030 |
| parents | 08b192a6e189 |
| children | d3b5e4251950 |
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--- a/README Wed Nov 20 23:44:55 2013 +1030 +++ b/README Thu Nov 21 00:01:28 2013 +1030 @@ -1,16 +1,23 @@ An RRD can be created like so.. -rrdtool create ~/meter.rrd \ - DS:import:COUNTER:600:U:U \ - DS:export:COUNTER:600:U:U \ - RRA:AVERAGE:0.5:1:105120 \ - RRA:AVERAGE:0.5:12:105120 \ - RRA:MAX:0.5:1:105120 \ - RRA:MAX:0.5:12:105120 \ - RRA:MIN:0.5:1:105120 \ +rrdtool create ~/meter.rrd \ + DS:import:DERIVE:600:U:U \ + DS:export:DERIVE:600:U:U \ + RRA:AVERAGE:0.5:1:105120 \ + RRA:AVERAGE:0.5:12:105120 \ + RRA:MAX:0.5:1:105120 \ + RRA:MAX:0.5:12:105120 \ + RRA:MIN:0.5:1:10512 \ RRA:MIN:0.5:12:105120 Then data added with.. rrdtool update ~/meter.rrd `ssh -ay -i ~/.ssh/id_rpi pi@raspberrypi python iec1107/iec1107.py -r /dev/ttyUSB0` +Graph with.. +rrdtool graph ~/html/power-day.png --start -86400 -t "Power import/export (last 24 hours)"\ + DEF:import=$HOME/meter.rrd:import:AVERAGE \ + DEF:export=$HOME/meter.rrd:export:AVERAGE \ + AREA:import\#00FF00:"Imported (Wh)" \ + LINE1:export\#0000FF:"Exported (Wh)" +