The top picture is of some basic environmental controls I built for Thurrock Lifestyle Solutions first multi-sensory room. The black box controls up to six basic on/off electrical devices such as fans and projectors. The Doro remote allows you to freeze the 100" projector image and also skip tracks on the MP3/CD player.
In the video below is also a glimpse of Proteus, which can be explored using just two switches via an adapted Xbox joypad through a Titan One adapter with custom scripts (look and latch walking forwards on/off).
If interested, a link to the cloud video and more can be found at the fledgling TLS PMLD (Profound and Multiple Learning Disabilities) section.