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Old December 16th, 2011   #3
ericthegeek
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Join Date: Aug 2008
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This situation is is analogous to a dimmer rack with a variable number of field-installable dimmer modules. It's a perfect application for sub-devices. A 96-way dimmer rack can have between zero and 96 dimmers just like your product can have between zero and 150 pixels (or whatever number you've chosen).

The root will have a fixed DMX footprint that will be the same no matter how many elements are installed in the pixel string. You'd use the root device for any master control slots.

Then, each pixel in the string would be a sub-device. A string of 100 pixels would have 100 sub-devices, each with a 3-slot footprint (assuming 8-bit RGB). When you add or remove pixels, the number of sub-devices will change.
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