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arduino/firmata and using media

Posted: Fri Mar 20, 2026 12:45 pm
by llumen
Hi, I've been searching for some extra info on how to use firmata to connect to relays or motors. The tutorial in the documentation only gets me that far.

There is a video https://www.facebook.com/reel/1493681734304490 from some years ago around 4.1 with several stepper motors run by a gradient.

How is this set up? because the tutorial only does more or less manual support using faders in the module. I can not figure out how to run media on the firmata. (There is an add control -> MadMapper -> Media Playback menu but doesn't seem to be selectable)

All help is welcomed

Thx Pieter

Re: arduino/firmata and using media

Posted: Tue Mar 24, 2026 4:02 pm
by mad-matt
I think they use a trick here, they use a DMX fixture to get the gradient into DMX channel, then in MadMapper preferences, DMX out is set to ArtNet and DMX In is set to ArtNet too, so MadMapper gets back the DMX it sends, so then the DMX channels can be assigned to the Firmata module sliders...
But with MadMapper 6.1.0 Beta version you can use the DMX To OSC Module to get it without doing an ArtNet loopback