The shield also supports the DMX-RDM protocol, which is an extension for DMX to enable bi-directional communication between the controller and the devices. To handle DMX and Arduino the right way, the ...

Prototype Stack The prototype stack is pretty straightforward - an Arduino, a DMX shield, and a MIDI shield, stacked nicely.

Arduino DMX There’s only a single piece of cheap hardware needed to add to an Arduino-compatible design to allow it to handle DMX – just an RS485 transceiver chip.