งานปฏิบัติ 7

Code

#include "LedControl.h"

#include "Keypad.h"

char keys[4] [4]={

 {'7','8','9','A'},

 {'4','5','6','B'},

 {'1','2','3','C'},

{'E','0','F','D'}};

 byte rowPins[] = {7,6,5,4};

 byte colPins[] = {3,2,1,0};

 Keypad keypad = Keypad(makeKeymap(keys),

 rowPins,colPins,4,4);

 LedControl lc=LedControl(10,8,9,1);

 void setup()

{

lc.shutdown(0,false);

lc.setIntensity(0,5);

lc.clearDisplay(0);    

}

void loop()

{

char key = keypad.getKey(); 

if (key != NO_KEY)

{

lc.setChar(0,0,key,false);

}

}