DCC controlled Hornby Dublo layout - with no wiring

This video shows off my no-wiring DCC Hornby Dublo layout. There are 35 electric points, 15 electric uncouplers, and some signals, both colour-light and semaphore. But no wiring: each accessory has its own DCC decoder - powered directly from the track. Every type of HD loco has a DCC decoder fitted, and most have a keep-alive as well. Locos are controlled with a Roco Multimaus. Accessories are controlled from the touch screen of an iPad, connected to a Roco Z21 DCC control system. Some of the points are also controlled by Hornby Dublo switches which have been converted to DCC. The semaphore signals are operated with RC servos and have ‘bounce’. Several relevant articles have been published in the MERG Journal.