FreeMDU
Open hardware and software tools for communicating with Miele
...This project includes reverse-engineered protocol support, a terminal user interface for diagnostics, and firmware that can act as a USB-UART bridge or standalone communication adapter for home automation systems. Developers and tinkerers can use FreeMDU to read diagnostic codes, monitor appliance internal states, and even integrate device feedback into platforms like Home Assistant using MQTT, making it valuable for repair, automation, and monitoring applications. The repository’s components are split into multiple subprojects.