Matrix RGB Led 8x8 project (marker)

Account cancelled 2016-02-02 18:02:31 2595 Views0 Replies
Hi, I am make a project at school for my degrees ( i am french so my english isn't perfect) so I want to use this matrix RGB led 8x8 with my arduino card (I want to use MBED after):
http://www.dfrobot.com/index.php?route= ... uct_id=780
But I need 16x16 led so I combined 4 matrix but i can't make the program:
I can control only one matrix with this program:
Code: Select all
#include <SPI.h> #define DATA_PIN 11 #define CLK_PIN 13 #define LATCH_PIN 8 void setup() { // set the LATCH_PIN as an output: pinMode (LATCH_PIN, OUTPUT); // initialize SPI: SPI.begin(); // Autre init SPI à prevoir ? } void loop() { byte rouge[16] ={B11111111, B00000000, B00000000, B11111111, B11111111, B00000000, B11111111, B00000000, B11111111, B00000000, B00000000, B11111111, B11111111, B00000000, B11111111, B00000000}; byte vert[16] ={B00000000, B11111111, B00000000, B11111111, B00000000, B11111111, B11111111, B00000000, B00000000, B11111111, B00000000, B11111111, B00000000, B11111111, B11111111, B00000000}; byte bleu[16] ={B00000000, B00000000, B11111111, B00000000, B11111111, B11111111, B11111111, B00000000, B00000000, B00000000, B11111111, B00000000, B11111111, B11111111, B11111111, B00000000}; byte anode = {B00000000}; for (int i = 0; i <8 ; i++) { digitalWrite(LATCH_PIN, LOW); // send in the address and value via SPI: // Colonne 1,2,3 en bleu SPI.transfer(bleu[i]);//B SPI.transfer(vert[i]);//G SPI.transfer(rouge[i]);//R switch (i) { case (0): anode = B00000001 ; break; case (1): anode = B00000010 ; break; case (2): anode = B00000100 ; break; case (3): anode = B00001000 ; break; case (4): anode = B00010000 ; break; case (5): anode = B00100000 ; break; case (6): anode = B01000000 ; break; case (7): anode = B10000000 ; case (8): anode = B00000001; break; case (9): anode = B00000010 ; break; case (10): anode = B00000100 ; break; case (11): anode = B00001000 ; break; case (12): anode = B00010000 ; break; case (13): anode = B00100000 ; break; case (14): anode = B01000000 ; break; case (15): anode = B10000000 ; break; } SPI.transfer(anode);//Anode // take the SS pin high to de-select the chip: digitalWrite(LATCH_PIN,HIGH); } for (int i = 0; i <8 ; i++) { digitalWrite(LATCH_PIN, LOW); SPI.transfer(bleu[i+8]);//B SPI.transfer(vert[i+8]);//G SPI.transfer(rouge[i+8]);//R switch (i) { case (0): anode = B00000001 ; break; case (1): anode = B00000010 ; break; case (2): anode = B00000100 ; break; case (3): anode = B00001000 ; break; case (4): anode = B00010000 ; break; case (5): anode = B00100000 ; break; case (6): anode = B01000000 ; break; case (7): anode = B10000000 ; } SPI.transfer(anode);//Anode // take the SS pin high to de-select the chip: digitalWrite(LATCH_PIN,HIGH); } delay(1); // 1ms de pause avant envoy d'un autre message }

And I don't understand how it's work with 4 matrix connected ( to make a square of 2 on 2).

Thank you to help me