control multiple TLC5940?

Question

So, my question is how do i control multiple TLC5940? I know i can connect them together, http://tlc5940arduino.googlecode.com/svn/wiki/images/breadboard-arduino-tlc5940.png, but i dont know how to "activate" the pins on the second TLC

In the code i have added by GreatScott!, tries Scott to make a matrix display. In his code it is following:

#include "Tlc5940.h" //don't forget to download the Tlc5940 lib from arduino playground ( http://tlc5940arduino.googlecode.com/files/Tlc5940_r014_2.zip)

#define RowOne 8 //Gate of 1.MOSFET which connects to Row "a" (anodes of all LEDs in Row "a")

#define RowTwo 7 //Gate of 2.MOSFET which connects to Row "b" (anodes of all LEDS in Row "b")

#define RowThree 6 //Gate of 3.MOSFET which connects to Row "c" (anodes of all LEDs in Row "c")

#define RowFour 5 //Gate of 4.MOSFET which connects to Row "d" (anodes of all LEDs in Row "d")

#define RowFive 4 //Gate of 5.MOSFET which connects to Row "e" (anodes of all LEDs in Row "e")

my question is: How can i define a pin to be on the second TLC?, and not on the first.

Robert Peter Oakes · Accepted Answer

these are a device you can simply daisy chain, data in on the first, the out of the first goes to the in of the next, etc.

in the library you should be able to set the number of output that make up the chain (In units of 16 of course)

it should be as simple as that

oh and you need to output the complete chain in sequence on each itteration / refresh

hope this helps, if not let me know and ill dig up some old code i should have somewhgere to show this