can it be done?

[maxxryno]

I would like advice on how to connect all the following to possibly run off one board this can include shields

2 x 8*8 rgb led matrixes

1 x rgb led

3 x 88 rgb led matrixes in a chain □□□ or equivalent size eg a 824

I have an Uno R3 and the single RGB LED already. The matrixes only need to run blue and green, I want all components to run with a different and random colour scheme to any other component at the same time.

any help is much appreciated

[DVDdoug]

You can't wire RGB LEDs as a matrix, but you can certainly arrange them as a matrix.

If you don't need dimming, you can use shift registers to individually-control about as many LEDs as you like. (And, you can simply treat the blue & green elements as separate LEDs for 3 different color possibilities.)

[KenF]

Yes of course you could. You could even have a button!