jschanz / easymeter

Get power values from an Easymeter Q3D electric meter. Combines them with smaspot and upload it to pvoutput.org

easymeter

Get power values from an Easymeter Q3D electric meter. Tested with the following "IR-Optokopf für EasyMeter Zähler (USB)" on a Raspberry Pi. http://shop.co-met.info/artikeldetails/kategorie/Smart-Metering/artikel/ir-optokopf-fuer-easymeter-zaehler-usb.html

Please note, that some Raspis have problems with USB2Serial-Converters. To avoid freezes, modify /boot/cmdline.txt

dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait smsc95xx.turbo_mode=N profile=2 loglevel=7 dwc_otg.microframe_schedule=1 dwc_otg.fiq_fix_enable=1  sdhci-bcm2708.sync_after_dma=0 sdhci-bcm2708.enable_llm=1 dwc_otg.lpm_enable=0 dwc_otg.speed=1

Install Package to /opt/ and configure some values in /opt/easymeter/etc/easymeter.cfg Variables should be self explaining ... script should run every minute to gather more accurate data (e.g. for csv export or mysql archive).

install a cronjob to /etc/cron.d/

/etc/cron.d/easymeter

*/1 * * * * root sleep 10 && /opt/easymeter/bin/easymeter.pl > /var/log/easymeter.log 2>&1

you can skip the "sleep 30" command if you don't use pvoutput-upload. if you use pvoutput-upload it's recommended, because otherwise there would be some problemes with smaspot, bluetooth and the sma inverters.

upload to pvoutput is done every 5 minutes

OpenHAB

OpenHAB integration is done by the OpenHAB REST API.

easymeter.items

Group		Easymeter	<sun>		(All)

Number easymeter_ownership		"Zählernummer" 						<selfEnergy> 	(Easymeter)
Number easymeter_L1 			"L1 [%.2f Wh]" 						<selfEnergy> 	(Easymeter)
Number easymeter_L2 			"L2 [%.2f Wh]" 						<selfEnergy> 	(Easymeter)
Number easymeter_L3 			"L3 [%.2f Wh]" 						<selfEnergy> 	(Easymeter)
Number easymeter_consumption 	"Verbrauch [%.2f Wh]"				<selfEnergy> 	(Easymeter)
Number easymeter_import			"Netzbezug [%.2f Wh]"				<selfEnergy> 	(Easymeter)
Number easymeter_generation 	"Erzeugung PV-Anlage [%.2f Wh]" 	<selfEnergy> 	(Easymeter)
Number easymeter_export 		"Einspeisung PV-Anlage [%.2f Wh]"	<selfEnergy> 	(Easymeter)
Number easymeter_counter_import	"Zählerstand Bezug [%.2f KWh]"		<selfEnergy>	(Easymeter)
Number easymeter_counter_export "Zählerstand Einspeisung [%.2f KWh]" <selfEnergy>  (Easymeter)
String easymeter_last_update "Letzte Aktualisierung [%s]"					<timer>			(Easymeter)

Written with StackEdit.