The Open Lighting Project has moved!
We've launched our new site at www.openlighting.org. This wiki will remain and be updated with more technical information.
We've launched our new site at www.openlighting.org. This wiki will remain and be updated with more technical information.
Anyma uDMX
From wiki.openlighting.org
Link: http://anyma.ch/research/udmx/
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Anyma uDMX comes with a open firmware, which is rare. The USB communication is handled by the firmware instead of a separate chip. This must be very cheap to build!
While the original device sells for over 200 CHF, there are two clones that use the same firmware but no SMD-devices:
- http://www.illutzmination.de/udmx.html (page german/english)
- http://orikson.piranho.de/pa/uDMX/ (page german)
These two devices are even opto-isolated and use a DC/DC-converter so no risk for the PC/Laptop and no ground loops. Can be built for about 20-30 Euros.
Hardware:
- From USB to DMX (one way DMX)
- All the electronics is inside the XLR - two smd IC's: An AVR microcontroller and a RS485 driver
- The DMX data is buffered and the transmission is timed by the microcontroller
- USB powered
- No galvanic isolation
Software:
- Supported by OLA on Linux & Mac
- Supported by QLC (on Windows and probably also Linux and Mac OS, but not well tested)
- An external object for Max/MSP (OSX)
- A console app for Linux/OSX
- MIDI control via a OSX app
- There's an example how to control the console app from php scripts (seems easy)
- Free firmware. The DMX part is GPL, the USB part from Objective Development is "open" but all changes belongs to them.