Our small Märchenheim layout (80 × 70 cm) runs on the Dinamo system, controlled by a Raspberry Pi with iTrain. The hardware consists of an RMU, three TM44 block cards (10 in use plus one for the detachable programming/calibration track), two OC32s, and a UCCI for MCC.

One OC32 controls the turnouts, day/night simulation, (future) signals, and triggers Arduinos with Neopixels for atmospheric lighting effects. The other OC32 switches the lighting in the houses. Hall sensors run via two SHdecs. In short: a small layout, but packed with technology!