งาน ปฎิบัติ 7

                                                    

                                                            KEY PAD

wiring diagram

Cod 1

#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(8,10,9,1); 

// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices

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);

  }

}

Cod 2

#include "LedControl.h"

#include "Keypad.h"

char keys[4][4]={

  {'7','8','9','A'},

  {'4','5','6','B'},

  {'1','2','3','C'},

  {'*','0','#','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(8,10,9,1); 

// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices

int m=7;

void setup() 

{

  lc.shutdown(0,false);  

  lc.setIntensity(0,5); 

  lc.clearDisplay(0);      

}

void loop() 

{

  char key = keypad.getKey();

  if (key != NO_KEY)

  {

     if (m==7)

        lc.clearDisplay(0); 

     lc.setChar(0,m,key,false);

     m = m-1;

     if (m < 0)

        m = 7;

  }

}

Cod 3

#include "LedControl.h"

#include "Keypad.h"

char keys[4][4]={

  {'7','8','9','A'},

  {'4','5','6','B'},

  {'1','2','3','C'},

  {'*','0','#','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(8,10,9,1); 

// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices

int m=3;

char num[4]; //num[0] to num[3]

void setup() 

{

  lc.shutdown(0,false);  

  lc.setIntensity(0,5); 

  lc.clearDisplay(0);    

}

void loop() 

{

  char key = keypad.getKey();

  if (key != NO_KEY)

  {

     if (m==3)

        lc.clearDisplay(0); 

     lc.setChar(0,m,key,false);

     num[m]=key;

     m = m-1;

     if (m < 0)

     {

          if ((num[3]=='4')&&(num[2]=='0')&&(num[1]=='6')&&(num[0]=='9')) 

          {

            lc.setChar(0,7,'0',false);

            lc.setChar(0,6,'P',false);

          }

          else

          {

            lc.setChar(0,7,'-',false);

            lc.setChar(0,6,'-',false);

          }

          m = 3;

     }

  }

}