105 lines
5.9 KiB
Markdown
105 lines
5.9 KiB
Markdown
# OpenDTU Logger Home Assistant add-on
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[OpenDTU logger](https://git.hollander.online/energy/opendtu-logger) adds detailed, long-term storage and visualisation of Hoymiles solar inverter metrics monitored with OpenDTU. This [OpenDTU Logger Home Assistant add-on](https://git.hollander.online/energy/home-assistant-addons/src/branch/main/opendtu-logger), makes it possible to easily install it, without requiring a lot of technical knowledge.
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## Installation instructions
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These instructions contain 3 steps:
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1. This add-on requires a PostgreSQL database, optionally with TimescaleDB support. In this example, we'll Expaso's TimescaleDB add-on in order to store data.
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2. Then, we install OpenDTU Logger to connect to OpenDTU and record inverter data into the database.
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3. Finally, we setup Grafana to visualise the data recorded by OpenDTU Logger.
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### Install Expaso's TimescaleDB add-on
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1. In Home Assistant, go to Settings -> Add-ons -> Add-on store
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2. Click the three dots in the top-right corner, select 'Repositories'.
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3. Add <https://github.com/Expaso/hassos-addons> .
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After a few seconds, the TimescaleDB add-on should appear in the add-on store. Install it.
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After installing TimescaleDB, go to Configuration. Click the three dots in the top-right corner and select "Edit in YAML". Then, make the following changes:
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- Add opendtu_logger to `databases` and `timescaledb_enabled` like so:
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```yml
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databases:
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- homeassistant
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- opendtu_logger
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timescale_enabled:
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- homeassistant
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- opendtu_logger
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timescaledb:
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telemetry: basic
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maxmemory: 512MB
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maxcpus: 4
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max_connections: 50
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system_packages: []
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init_commands: []
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retry_upgrade: false
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```
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Save the configuration, go to the "Info" tab and start TimescaleDB.
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### Setting up OpenDTU Logger
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With the database initialised, we can now setup OpenDTU Logger. Add the [add-on repository](https://git.hollander.online/energy/home-assistant-addons) using the [instructions](https://git.hollander.online/energy/home-assistant-addons) provided. Then, click "Install" to install this add-on. Go to "Configuration".
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- If you're using Expaso's TimescaleDB add-on, the `db` setting will **not** require any changes.
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- **In the `opendtu` field, enter the *IP address* or *hostname* of your OpenDTU.** E.g.: `192.168.1.5` or `opendtu.local`.
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- In `tz`, enter your timezone. The default is "Europe/Amsterdam".
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- Optionally, if you don't want to use TimescaleDB, disable `timescaledb`.
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Save the configuration, go to the "Info" tab and start OpenDTU Logger.
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Check the "Log" page. If the setup is succesfull, it should contain a mesasge stating: `OpenDTU Logger has been successfully initialised. Starting data recording...`.
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### Setting up Grafana
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From the Home Assistant Community Add-ons repository, install Grafana. Click "Start" to start the add-on and then click "Open Web UI".
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- In the top-left corner, click the three bars (open menu) -> Connections.
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- Using the search box, enter `PostgreSQL`. Click the resulting "PostgreSQL".
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- In the top-right corner, click "Add new data source"
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- Use the following settings
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- Name: `opendtu_logger`
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- Host URL: `77b2833f-timescaledb`
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- Database name: `opendtu_logger`
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- Username: `postgres`
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- Password: `homeassistant`
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- Version: `16` or the closest version to it.
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- TimescaleDB: Toggle the switch to enable TimescaleDB support.
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- Click "Save and Test". A "Database Connection OK" message should appear.
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- In the top-right corner, click the `+` sign, "Import dashboard".
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- Go to <https://git.hollander.online/energy/opendtu-logger/src/branch/main/grafana>
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- In this folder, a number of sample dashboards is available.
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- For a complete overview of all collected data
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- For English, use `PV.json`.
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- For Dutch, use `Zonnepanelen.json`.
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- Click the dashboard you want, and then "Raw".
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- Copy and paste the text into the "Import via dashboard JSON model" box.
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- Click "Load".
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- In the `energy` field, select `opendtu_logger` as the data source.
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- Click import. You should now be able to view the data, collected by OpenDTU Logger and stored into TimescaleDB.
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- Feel free to try out the other dashboards as well.
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## Configuring OpenDTU
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In order for OpenDTU Logger to work properly, it is required to ensure the following OpenDTU settings are used.
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- Within OpenDTU, go to `Settings` -> `Inverter settings` (<http://YOUR_OPENDTU_IP_ADDRESS/settings/inverter>).
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- For each inverter in the inverter list, click on the pencil (Edit inverter) and go to `Advanced`.
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- Enable `Zero daily yield at midnight` and `Clear Eventlog at midnight`.
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- Click `Save`
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- Repeat this procedure for every inverter.
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By default, OpenDTU sends data every 5 seconds. This can be adjusted by changing the "Poll interval" setting in <<http://YOUR_OPENDTU_IP_ADDRESS/settings/dtu>.
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## Security notice
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Using the aforementioned steps, you should now have a working OpenDTU Logger setup. However, it is important to keep your data safe. [Expaso recommends](https://github.com/Expaso/hassos-addons/tree/master/timescaledb#usage) changing the default postgres `homeassistant` password. I recommend following their recommendation and also installing the pgAdmin4 add-on using the [instructions](https://github.com/Expaso/hassos-addons/tree/master/pgadmin4) they provide. In case you're doing this after setting up OpenDTU Logger, remember to also update this password in the OpenDTU Logger config and the Grafana data source connection settings.
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## Feedback
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If you'd like to provide feedback about this project, or in case you'd like to ask questions, please refer to [this page](https://pieterhollander.nl/author/pieter-hollander/) for contact information (e-mail, Github or LinkedIn), or use the [contact form](https://pieterhollander.nl/#contact) on my website. You can also respond by placing your remarks in [this discussion on Github](https://github.com/tbnobody/OpenDTU/discussions/1842).
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