Hi Folks!
I've got a Smart Energy Meter at home and reading it out via an arduino. The Meter got a IR-Led that sends a SML Message every second. In the message I found the actual meter value in Wh. It's the same value as on the display.
I send this (forever raising) kWh value to emonCMS and get very strange Feed values. I choose "kWh to Power". I expect a Watt-value that is 1000 times bigger as I send Wh not kWh. But the calculated values are much bigger and create a almost straight line in the graph....
Can anyone tell me if it is possible to get this working, or do I have to calculate the current Power in the Arduino and send this value to emonCMS?
Thanks in advanced for any help!
Greetz,
Marco
Re: Logging kWh
Send the consumed power (kWh) difference since the last update instead of the accumulated every time. My guess is that you're sending 1-2-3-4-5 e.t.c while you should send 1-1-1-1-1.
I suppose you could also use "pulse difference" on your input.
Re: Logging kWh
HI Marco,
I just started this projekt and want to ask you, if you can give me some information to start.
I have two usb irda adapters and two smart meters with give me this strings, when I start to read them out:
cat /dev/ttyUSB0->
1-0:1.8.0*255(00002903.9035174*kWh)
1-0:2.8.0*255(00012619.1147404*kWh)
1-0:21.7.255*255(000040.64*W)
1-0:41.7.255*255(-000068.44*W)
1-0:61.7.255*255(000200.91*W)
1-0:1.7.255*255(000173.11*W)
1-0:96.5.5*255(82)
!
/ESY5Q3DB1024 V3.03
How can I feed the emoncms with this data?
Nice Projekt!
Thx