A few months ago a customer asked if we could help with a custom DMX to MIDI conversion problem. They were using an Elation Show Designer 3 lighting desk and needed to recall lighting scenes via MIDI input.
They wanted a second DMX console to, among other things, be able to trigger these scene recall messages.
The Elation manual reveals that the console can store 48 scenes on each of 99 pages, or 4,752 different looks. These scenes can be recalled using a MIDI ‘Channel Mode‘ message, which is three bytes long. The format is
$BX $XX $YY
…where $0X is the MIDI channel number [0 15] and then $XX and $YY are a pair of 8-bit numbers, of which the lower seven are available.
So, we ginned up a simple firmware personality for the DecaBox which lets the MIDI channel and values $XX and $YY be easily defined via three consecutive DMX channels.
Everything worked perfectly. We asked the client if they could provide any other detail about the overall installation, and they replied with this short description. Unfortunately, no photos or video were available to share.
I used the dmx to midi device to change scenes on a lighting desk in a roller rink to simulate what was going on in a laser zone arena.
For instance when a base station(let’s say red base) was under a attack the roller rink lights would flash red then when the base was destroyed the rink would flash white for a few seconds.
The setup I used was a computer running Light factory that controls the laser zone arena to send dmx to the midi box to allow it to change pages and scenes on a Elation Show Designer 3 lighting desk.
This setup worked great as I didn’t need to setup a 2nd universe or change any fixture addresses, I could simply tap into the prebuilt lighting scenes the desk provided.
It’s always neat to hear what how our gear is used around the country. If you need something similar, please let us know.