Big RGB Table Finally Needs Code

Projects Programming
46

Yeah this code is just to see if that short hand stuff will cycle the anodes, i just dont know why it wont display...

// code for a 36 x 24 array (12 RGB LEDs, 24 columns)

#include <SPI.h>

// set up an array for the cathode drives
byte cathode6[] = { //chip 6, first 3rd of display
  0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
byte cathode7[] = { //chip 7, second 3rd of display
  0, 0, 0, 0, 0, 0, 0, 0, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0, 0, 0, 0, 0, 0, 0, 0
};
byte cathode8[] = { //chip 8, third 3rd of display
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01
};

byte chip5 = 0xFF; //chip values
byte chip4 = 0xFF;
byte chip3 = 0xFF;
byte chip2 = 0xFF;
byte chip1 = 0xFF;

int columncount = 0;
unsigned int time = 500;

const int oe = 10;

void setup(){
  pinMode(oe, OUTPUT);
  digitalWrite(oe, LOW);
  SPI.begin();
  Serial.begin(9600);
}

void loop(){
  //we have to transfer out the cathodes first
  SPI.transfer(cathode8[columncount]);
  SPI.transfer(cathode7[columncount]);
  SPI.transfer(cathode6[columncount]);
  columncount = columncount + 1; // update for next column
  if (columncount == 24){
  columncount = 0; // reset if reach the end
  }
  //transfer out those colors
  SPI.transfer(chip5);
  SPI.transfer(chip4);
  SPI.transfer(chip3);
  SPI.transfer(chip2);
  SPI.transfer(chip1);
  Serial.println(cathode8[columncount], HEX);
  Serial.println(cathode7[columncount], HEX);
  Serial.println(cathode6[columncount], HEX);
  Serial.println(chip5, HEX);
  Serial.println(chip4, HEX);
  Serial.println(chip3, HEX);
  Serial.println(chip2, HEX);
  Serial.println(chip1, HEX);
  delay(time);
} // end void loop

The board is working perfectly, the octals are acting just like shift registers. but the oe isnt working, they are all connected though.