Hi xDGx,
To control 192 LEDs, the difficult part is how to connect them to the rainbowduino and how to control the spcific led.
I suggest you look at my rainbowduino demo code(Rainbowduino_v1_0_4.zip), which may give you some instructions. (Not fully finished yet 
)
http://code.google.com/p/rainbowduino/downloads/list
To control 192 LEDs, you may try this way:
-
led0~led23 as the first group of which anode use the same VCC.
conect anode of led0~led23 → VCC1
connect cathode of led0->R8,led1->G8,led2->B8;led3->R7,led4->G7,led5->B7;… led21->R0,led22->G0,led23->B0 -
led24~led47 as the second group of which anode use the same VCC.
conect anode of led24~led47 → VCC2
connect cathode of led24->R8,led25->G8,led26->B8;led27->R7,led28->G7,led29->B7;… led45->R0,led46->G0,led47->B0
…
- led168~led191 as the 24th group of which anode use the same VCC.
conect anode of led168~led191 → VCC8
connect cathode of led168->R8,led169->G8,led170->B8;led171->R7,led172->G7,led173->B7;… led189->R0,led190->G0,led191->B0
Then change matrixColorData[line][column] with different value will change the brightness of specific led.
For example matrixColorData[0][0] = 0x000f → led0 brightest
matrixColorData[0][0] = 0x0000 → led0 off
matrixColorData[0][0] = 0x00f0 → led1 brightest
matrixColorData[0][0] = 0x0f00 → led2 brightest
matrixColorData[0][1] = 0x000f → led3 brightest
matrixColorData[1][0] = 0x000f → led24 brightest
You can try it! Feel free to ask any question!
All the best,
-Icing
