This vendor will sell these 2mm pitch LED panels individually rather than by the

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1

This vendor will sell these 2mm pitch LED panels individually rather than by the meter, apparently—I haven’t checked but I guess they’re compatible with the Smartmatrix driver?

2

Actually, looks like it’s not currently supported, and might require changes to the SmartMatrix library and custom wiring: http://community.pixelmatix.com/t/64x64-led-matrix/129/4
http://community.pixelmatix.com/t/64x64-led-matrix/129/4

3

Aha, good catch.