Most of us are using this reader: https://adapter.ebusd.eu/
There’s a heap of discussions on setting it up here on the forums, e.g . here: Vaillant eBUS hardware adapter (ebusd software) Thread
Most of us are using this reader: https://adapter.ebusd.eu/
There’s a heap of discussions on setting it up here on the forums, e.g . here: Vaillant eBUS hardware adapter (ebusd software) Thread