HI , appreciate crosscheck and help to beginner.
Story: measure energy consumption locally - charts. etc…
Plan: buy 3 phase consumption Energy Meter (Modbus, RS 485) + RS485 to USB and Raspberry PI
How then manage the data flow.
Home assistant with Modbus configuraiton (https://www.home-assistant.io/integrations/modbus/)
then Node Red to define data flow ?
and then InfluxDB & Grafana ?
thanks for help
Martin