One year OpenDTU-Database
OpenDTU-Database adds an ESP32 LittleFS Database and two energy charts, a column chart of the last 25 hours and a full calendar chart.
OpenDTU-Database adds an ESP32 LittleFS Database and two energy charts, a column chart of the last 25 hours and a full calendar chart.
There are 3 new APIs available, returning JSON strings:
| API | returned values |
|---|---|
| /api/database | returns all recored data points from the database with total energy value |
| /api/databaseHour | returns the energy per hour for the last 25 hours |
| /api/databaseDay | returns the energy for each day |
Each data point has the following format: [ year (00-99), month (1-12), day (1-31), hour (0-23), energy (Wh) ]
Example: [23,6,30,15,132.995605]
The 192KB LittleFS in OpenDTU can store around 6 years of data, because each data point needs only 8 bytes of memory.
This project was started from this discussion (Mikrocontroller.net). It was the goal to replace the original Hoymiles DTU (Telemetry Gateway) with their cloud access. With a lot of reverse engineering the Hoymiles protocol was decrypted and analyzed.
The documentation can be found here. Please feel free to support and create a PR in this repository to make the documentation even better.
Generated using: git log --date=short --pretty=format:"* %h%x09%ad%x09%s" | grep BREAKING
* 1b637f08 2024-01-30 BREAKING CHANGE: Web API Endpoint /api/livedata/status and /api/prometheus/metrics
* e1564780 2024-01-30 BREAKING CHANGE: Web API Endpoint /api/livedata/status and /api/prometheus/metrics
* f0b5542c 2024-01-30 BREAKING CHANGE: Web API Endpoint /api/livedata/status and /api/prometheus/metrics
* c27ecc36 2024-01-29 BREAKING CHANGE: Web API Endpoint /api/livedata/status
* 71d1b3b 2023-11-07 BREAKING CHANGE: Home Assistant Auto Discovery to new naming scheme
* 04f62e0 2023-04-20 BREAKING CHANGE: Web API Endpoint /api/eventlog/status no nested serial object
* 59f43a8 2023-04-17 BREAKING CHANGE: Web API Endpoint /api/devinfo/status requires GET parameter inv=
* 318136d 2023-03-15 BREAKING CHANGE: Updated partition table: Make sure you have a configuration backup and completly reflash the device!
* 3b7aef6 2023-02-13 BREAKING CHANGE: Web API!
* d4c838a 2023-02-06 BREAKING CHANGE: Prometheus API!
* daf847e 2022-11-14 BREAKING CHANGE: Removed deprecated config parsing method
* 69b675b 2022-11-01 BREAKING CHANGE: Structure WebAPI /api/livedata/status changed
* 27ed4e3 2022-10-31 BREAKING: Change power factor from percent value to value between 0 and 1
A list of all currently supported inverters can be found here