[How To Arduino] KTDUINO MAX7219 8X8點矩陣驅動控制模組/ MTARDMAX7219

模組測試

腳位定義：

1.  VCC   => 5V
2.  GND
3.  DIN    => Pin 12
4.  CS      => Pin 10
5.  CLK   => Pin 11

Arduino 官方網站 - LedControl

http://playground.arduino.cc/Main/LedControl

LedControl 函式庫下載

https://github.com/wayoda/LedControl

請函式庫解壓縮放至以下路徑：(依安裝路徑而不同)

C:\Program Files (x86)\Arduino\libraries　

#include "LedControl.h" //  need the library
LedControl lc=LedControl(12,11,10,1); //

// pin 12 is connected to the MAX7219 pin 1
// pin 11 is connected to the CLK pin 13
// pin 10 is connected to LOAD pin 12
// 1 as we are only using 1 MAX7219

void setup()
{
  // the zero refers to the MAX7219 number, it is zero for 1 chip
  lc.shutdown(0,false);// turn off power saving, enables display
  lc.setIntensity(0,8);// sets brightness (0~15 possible values)
  lc.clearDisplay(0);// clear screen
}
void loop()
{
  for (int row=0; row<8; row++)
  {
    for (int col=0; col<8; col++)
    {
      lc.setLed(0,col,row,true); // turns on LED at col, row
      delay(25);
    }
  }

  for (int row=0; row<8; row++)
  {
    for (int col=0; col<8; col++)
    {
      lc.setLed(0,col,row,false); // turns off LED at col, row
      delay(25);
    }
  }
}

參考出處：

http://tronixstuff.com/2013/10/11/tutorial-arduino-max7219-led-display-driver-ic/