Hi,
I’ve written code to integrate heat pumps from the Austrian manufacturer LAMBDA (https://lambda-wp.at/, sometimes also known under the name of Zewotherm) into Venus OS.
The integration reads out supported values via Modbus and shows them under a dedicated heat pump entity in the remote console.
Heat pump support is still rather rudimentary in Venus OS, unfortunately. Victron doesn’t even show heat pumps in the VRM yet 
I am planning to add new features (e.g. writing to registers) as they become supported by Victron.
Maybe this is helpful for some people. It should be easy to adapt the code to other heat pumps that provide data via Modbus.
