The KNX Room Controller with TFT display and integrated bus coupling unit is an example of Berker’s future philosophy on ergonomics and usability. The MMI (man–machine interface), developed for installation at a height of 1.5 m, consists of a capacitive sensor surface combined with a single microswitch for haptic feedback. Swipe gestures allow users to access functions such as room temperature control, switch functions and status messages, which are shown on the color TFT display. The black design (black when switched off) visually extends the room controller to become a three-dimensional object.