Physical iPad Interface With Knobs, Buttons And Sliders

The system, which looks similar to DJ equipment, operates based on three different parts: the physical controllers, an iPad frame and software that runs from within an app.

Physical knobs and sliders can be uniquely arranged and snapped together on the device to operate independently or congruently to one another. The magnet embedded frame allows the buttons to be displaced, which offers more precision for haptic feedback than fingers on a touchscreen. The conductive aluminum make up of the various parts cause a passing of electric discharge caused by human touch; an accompanying app transfers that modular information to the iPad. The process is demonstrated in the film below.

More at: https://www.psfk.com/2014/12/physical-ipad-interface-with-knobs-buttons-and-sliders.html