one for grid and the other for PV. Grid is in CT clamp 0 and PV inverter is in CT Clamp 1. Change config as needed and use py file as needed.
Integrate Shelly EM into Victron Energies Venus OS
With the scripts in this repo it should be easy possible to install, uninstall, restart a service that connects the Shelly EM to the VenusOS and GX devices from Victron. Idea is inspired on @fabian-lauer & @vikt0rm projects linked below.
This is my first project with the Victron Venus OS on GitHub, so I took some ideas and approaches from the following projects - many thanks for sharing the knowledge:
- https://github.com/fabian-lauer/dbus-shelly-3em-smartmeter
- https://github.com/vikt0rm/dbus-shelly-1pm-pvinverter
- https://shelly-api-docs.shelly.cloud/gen1/#shelly-em
- https://github.com/victronenergy/venus/wiki/dbus#grid-and-genset-meter
------------------------------------ Update below needed ----------------------------------------------------
- Shelly EM firmware (20230503-102005/v1.13.0-g9aed950)
- Venus OS on Raspberry PI 4 4GB version 1.1 - Firmware v2.84
- No other devices from Victron connected
- Connected to Wifi netowrk "A"
As mentioned above the script is inspired by @fabian-lauer dbus-shelly-3em-smartmeter implementation. So what is the script doing:
- Running as a service
- connecting to DBus of the Venus OS
com.victronenergy.pvinverter.http_{DeviceInstanceID_from_config} - After successful DBus connection Shelly EM is accessed via REST-API - simply the /status is called and a JSON is returned with all details A sample JSON file from Shelly 1PM can be found here
- Serial/MAC is taken from the response as device serial
- Paths are added to the DBus with default value 0 - including some settings like name, etc
- After that a "loop" is started which pulls Shelly 1PM data every 750ms from the REST-API and updates the values in the DBus
Thats it 😄
Just grap a copy of the main branche and copy them to a folder under /data/ e.g. /data/dbus-shelly-1pm-pvinverter.
After that call the install.sh script.
The following script should do everything for you:
wget https://github.com/Goaheadz/dbus-shelly-em-smartmeter/archive/refs/heads/main.zip
unzip main.zip "dbus-shelly-em-smartmeter-main/*" -d /data
mv /data/dbus-shelly-em-smartmeter-main /data/dbus-shelly-em-smartmeter
chmod a+x /data/dbus-shelly-em-smartmeter/install.sh
/data/dbus-shelly-em-smartmeter/install.sh
rm main.zip
Within the project there is a file /data/dbus-shelly-em-smartmeter/config.ini - just change the values - most important is the deviceinstance, custom name and phase under "DEFAULT" and host, username and password in section "ONPREMISE". More details below:
| Section | Config vlaue | Explanation |
|---|---|---|
| DEFAULT | AccessType | Fixed value 'OnPremise' |
| DEFAULT | SignOfLifeLog | Time in minutes how often a status is added to the log-file current.log with log-level INFO |
| DEFAULT | Deviceinstance | Unique ID identifying the shelly 1pm in Venus OS |
| DEFAULT | CustomName | Name shown in Remote Console (e.g. name of pv inverter) |
| DEFAULT | Phase | Valid values L1, L2 or L3: represents the phase where pv inverter is feeding in |
| ONPREMISE | Host | IP or hostname of on-premise Shelly 3EM web-interface |
| ONPREMISE | Username | Username for htaccess login - leave blank if no username/password required |
| ONPREMISE | Password | Password for htaccess login - leave blank if no username/password required |
- https://github.com/victronenergy/venus/wiki/dbus#pv-inverters DBus paths for Victron namespace
- https://github.com/victronenergy/venus/wiki/dbus-api DBus API from Victron
- https://www.victronenergy.com/live/ccgx:root_access How to get root access on GX device/Venus OS
- https://shelly-api-docs.shelly.cloud/gen1/#shelly1-shelly1pm Shelly API documentation
This module/repository has been posted on the following threads: