This repository contains a Home Assistant add-on that packages the excellent Trumanita project and exposes it natively inside Home Assistant. It allows you to monitor and control a Truma Combi (e.g.
logging shows this while ESP ist connected to my laptop through USB (COM3): INFO Successfully uploaded program. INFO Starting log output from COM3 with baud rate 115200 [15:29:26][I][logger:355]: Log ...