Requirements

The Mac, the widget and its firmware, and the cable and terminator a real fixture needs.

Runs on
macOS 15 Sequoia or later, Apple silicon
Needs
An Enttec DMX USB Pro with its DMX/RDM firmware (major version 2)
Price
Free
WhatNeedsNotes
MacmacOS 15 Sequoia or later, Apple siliconNo Intel build
InterfaceAn Enttec DMX USB ProOthers that copy its protocol may open; only a genuine Enttec is checked
FirmwareDMX/RDM, major version 2It ships with 1.x, which is DMX-only
DriverNonemacOS has the driver for its USB chip
LineA terminator in the fixture’s DMX outputWith RDM switched on at the fixture
NetworkNoneTwo checks, both optional (Privacy)

The Mac

macOS 15 Sequoia or later, on Apple silicon. There is no Intel build, so an Intel Mac is offered nothing. Windows and Linux are planned and not started. There is no iPad version: the widget’s USB chip has no way to talk to an iPad.

The widget and its firmware

RDMBench talks to fixtures through an Enttec DMX USB Pro. Plug it straight into the Mac, not through an unpowered hub. Only one program at a time can hold the widget, so quit anything else that has it open.

The firmware is the catch, and it shows up on the first run. The widget ships with a DMX-only build. RDM needs the DMX/RDM build, major version 2, flashed once with Enttec’s EMU tool; the widget keeps it after that. Ours arrived as 1.44 and went to 2.4.

FirmwareWhat it isRDMBench
1.xDMX-onlySays so and stops, rather than timing out
2.xDMX/RDMThe one the bench needs
3.xRDM snifferSays so and stops

Some interfaces from other makers copy the Enttec protocol, and the bench may open them. It has only been checked against a genuine Enttec.

The line

The network

None. RDMBench works fully offline. It makes two checks when it can, one for app updates and one for the fixture library, and both can be turned off (Privacy).