Smartmeter - SGM-D4
- https://github.com/ZERYCON-GmbH/trudi-koala
- https://www.ptb.de/cms/ptb/fachabteilungen/abt2/fb-23/ag-234/info-center-234/trudi/trudi1510.html
- https://community.home-assistant.io/t/reading-energy-data-from-han-port/512452/8
- https://www.nek.no/wp-content/uploads/2018/11/Aidon-HAN-Interface-Description-v10A-ID-34331.pdf
- https://community.home-assistant.io/t/reading-energy-data-from-han-port/512452/8
- https://github.com/duswie/node-red-contrib-smgw
- https://www.ptb.de/cms/de/ptb/fachabteilungen/abt2/fb-23/ag-234/info-center-234/trudi.html
- https://www.ppc-ag.de/en/produkte/smart-meter-gateways/ethernet-smart-meter-gateway/
- https://www.efr.de/products/smart-energy-geraete/elektronische-stromzaehler/basiszaehler/sgm-d4/
- https://github.com/glfp/SolarEnergyMonitorInfluxGrafanaDocker
- https://grafana.com/grafana/dashboards/13295-solar-pv-system/?tab=revisions