Warning
This repository has been migrated to Codeberg and will not be updated anymore. Find the new repository here: https://codeberg.org/andreas-bulling/dbus-lambda
LAMBDA heat pump integration for Victron Venus OS
This script supports reading values from heat pumps produced by LAMBDA/Zewotherm via Modbus. Currently supported are: operating state, flow temperature, power consumption, total energy.
Writing values is not supported right now.
Grab a copy of the main branch and copy it to /data/dbus-lambda.
wget https://github.com/andreas-bulling/dbus-lambda/archive/refs/heads/main.zip
unzip main.zip "dbus-lambda-main/*" -d /data
mv /data/dbus-lambda-main /data/dbus-lambda
Change the configuration file /data/dbus-lambda/config.ini to fit your setup. The following table lists all available options.
| Section | Config vlaue | Explanation |
|---|---|---|
| DEFAULT | SignOfLifeLog | Time in minutes how often a status is written to the logfile current.log |
| DEFAULT | Deviceinstance | Unique ID identifying the heat pump in Venus OS |
| DEFAULT | Host | IP address or hostname of the heat pump |
| DEFAULT | Port | Port (default: 502) |
| DEFAULT | Position | 0: AC Out, 1: AC In (default: 0) |
| DEFAULT | Model | Type of heat pump (e.g. EU13L) |
| DEFAULT | Timeout | Time in milliseconds how often the values should be read and updated |
Make the install script executable and run it. Clean up afterwards.
chmod a+x /data/dbus-lambda/install.sh
/data/dbus-lambda/install.sh
rm main.zip