A simple Python tool to read data from a Homewizard P1 WiFi meter. The data is stored in a Postgres database for visualization in Grafana.
Modify docker-compose.yaml, change METER_HOST to the IP address of your P1 meter.
It's recommended to assign a fixed address to the P1 meter so you don't have to come back and change this later :')
Run docker compose up -d and you should be good to go!
You may also want to modify pginit/init.sql with some initial values:
- The values of
public.p1_tariff, the order is as followed: tariff 1 (low tariff for me), tariff 2 (high tariff for me), gas tariff, UTC time at which the tariffs apply. - Do not modify
public.p1_meta! The script will populate this as it does it's thing.
Unsure of which tariffs apply to you? Head over to http://<METER_HOST>/api/v1/data, check out
active_tariff to see which tariff is currently active.
Since this script runs in a Docker container on the server Grafana also runs on, I added it to the grafana network (which is external.)
You may want to change things around, but by default these are the settings to add the database to Grafana:
- Host URL:
p1nuts-postgres - Database name:
p1nuts - Username:
postgres - Password:
koekjes - TLS/SSL Mode:
disable - Version:
15
You can also tinker around with the database, by default it's exposed to port 5509.
I know, this was hastily written to get something working.
Improvements through pull requests are welcome :-)