การรับค่าและนำค่จากKeypadไปใช้

ดูตัวอย่างตามนี้ครับ

1. ดึงค่าจาก keypad ออกมาให้ได้ http://playground.arduino.cc/Code/Keypad

2. เอาค่าที่อ่านได้จาก keypad แต่ละตัวอักษรมาต่อกัน http://tronixstuff.com/2011/11/12/tutorial-arduino-and-numeric-keypads-part-two/

3. สามารถใช้ class string ในการต่อข้อความได้ครับ https://www.arduino.cc/en/Tutorial/StringAdditionOperator

หนูทำโปรเจค ที่ต้องมีการเปิดปิดโดยการตั้งเวลา ช่วยดูโค้ดให้หนูทีได้ไหมค่ะ ทำการตั้งเวลาทุกบรรทัดเเล้ว กด#แล้ว ไม่บันทึกค่า เเต่Cursorกับเลื่อนบรรทัดแทน 

ช่วยดูให้หนูทีนะค่ะ

 

#include <Wire.h>

#include <RTClib.h>

#include <LiquidCrystal_I2C.h>

#include <Keypad.h>

 

//------------ Key Pad ----------------------

const byte ROWS = 4; 

const byte COLS = 3; 

char keys[ROWS][COLS] = {

  {'1','2','3'},

  {'4','5','6'},

  {'7','8','9'},

  {'*','0','#'}

};

byte rowPins[ROWS] = {8, 7, 6 , 5}; //connect to the row pinouts of the keypad

byte colPins[COLS] = {4, 3, 2};     //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

 

//------------ LCD ----------------------------------

LiquidCrystal_I2C lcd(0x27,20,4);// PCF8574A =  0x3F

 

// ----------- DS3231 -------------------------------

RTC_DS3231 RTC;

DateTime Time;

char Year,Mon,Day,Hour,Min,Sec;

long TimerON,TimerOFF;

int Buzzer =11;

 

/*-------------------------------------------------------------*

*  Setup  Program                                              *

*-------------------------------------------------------------*/

void setup () 

{ 

  lcd.begin();

 lcd.setCursor(0,0);lcd.print("TimeON   =          "); 

  lcd.setCursor(0,1);lcd.print("TimeOFF  =          ");  

  lcd.setCursor(0,2);lcd.print("Date     =          "); 

  lcd.setCursor(0,3);lcd.print("Time     =          ");  

  RTC.begin();   

  pinMode(Buzzer,OUTPUT); digitalWrite(Buzzer,HIGH);

 

}

/*-------------------------------------------------------------*

*   Main  Loop                                                 *

*-------------------------------------------------------------*/

void loop () 

{char Key;

 

    while(Key == NO_KEY)

    { 

      Time = RTC.now();

      ShowDate(13,3); 

      ShowTime(13,4);

      Key = keypad.getKey();

    }

    Beep(); 

    if(Key == '1')

    { GetDate(13,3);

      GetTime(13,4);

      RTC.adjust(DateTime(Year,Mon,Day,Hour,Min,Sec));            

    }    

 if(Key == '2')

    {       

      GetTime(13,1);

      TimerON = Hour;

      TimerON = (TimerON << 8) + Min;

      TimerON = (TimerON << 8) + Sec;  

      

      GetTime(13,2); 

      TimerOFF = Hour;

      TimerOFF = (TimerOFF << 8) + Min;

      TimerOFF = (TimerOFF << 8) + Sec;       

    }   

      

}

///////////////1232//////////////////////

  void CheckTime()

{ long Timer;

  Timer = 0;

  Timer = (Timer << 8)+Time.hour();

  Timer = (Timer << 8)+Time.minute();

  Timer = (Timer << 8)+Time.second();

 

  //if(Timer == TimerON){digitalWrite(LOAD,LOW);}

  //if(Timer == TimerOFF){digitalWrite(LOAD,HIGH);}

}                                                 

 

void ShowTime(char X,char Y)

{   lcd.setCursor(X-1,Y-1);

    if(Time.hour() < 10){lcd.print(0);}

    lcd.print(Time.hour());

    lcd.print(':');

    if(Time.minute() < 10){lcd.print(0);}

    lcd.print(Time.minute());

    lcd.print(':');

    if(Time.second() < 10){lcd.print(0);}

    lcd.print(Time.second());

}

/*-------------------------------------------------------------*

*  Show Date                                                   *

*-------------------------------------------------------------*/

void ShowDate(char X,char Y)

{   lcd.setCursor(X-1,Y-1);

    if(Time.day() < 10){lcd.print(0);}

    lcd.print(Time.day());

    lcd.print('/');

    if(Time.month() < 10){lcd.print(0);}

    lcd.print(Time.month());

    lcd.print('/');    

    if(Time.year()%100 < 10){lcd.print(0);}

    lcd.print(Time.year()%100);

}

/*-------------------------------------------------------------*

*  Get Date From Key                                           *

*-------------------------------------------------------------*/

void  GetDate(char X,char Y)

{  

   ShowDate(X,Y);

   Day  = GetNum(2,X,Y);

   Mon  = GetNum(2,X+3,Y);

   Year = GetNum(2,X+6,Y);

     

}

/*-------------------------------------------------------------*

* Get  Time From Key                                           *

*-------------------------------------------------------------*/

void  GetTime(char X,char Y)

{  

   ShowTime(X,Y);

   Hour  = GetNum(2,X,Y);

   Min   = GetNum(2,X+3,Y);

   Sec   = GetNum(2,X+6,Y);  

}

/*-------------------------------------------------------------*

*  Slide Number                                                *

*-------------------------------------------------------------*/

char BufNum[8];

void  SlideNum(void)

{

  BufNum[6]  = BufNum[5];

  BufNum[5]  = BufNum[4];

  BufNum[4]  = BufNum[3];

  BufNum[3]  = BufNum[2];

  BufNum[2]  = BufNum[1];

  BufNum[1]  = BufNum[0];

}

/*-------------------------------------------------------------*

* Get Number From Keypad                                      *

*-------------------------------------------------------------*/

unsigned long GetNum(int Count,int X,int Y)

{ char Key,i,N;

  int Sum; 

 lcd.blink();

  lcd.setCursor(X+(Count-2),Y-1); 

  N = 0;

  for(i=0;i<Count;i++){BufNum[i] = ' ';}

  i = 0;

  while(Key != '#')

  { Key = NO_KEY;

    while(Key == NO_KEY){Key = keypad.getKey();}  

    Beep(); delay(300);

  {for(i=0;i<Count;i++){BufNum[i] = ' ';}N = 0;}                  

   if((N < Count)&&(Key >= '0')&&(Key <= '9'))

   { SlideNum();

     BufNum[0] = Key;

     N++;

   }

   lcd.setCursor(X-1,Y-1);

   for(i=0;i<Count;i++){lcd.print(BufNum[Count-(i+1)]);}

   lcd.setCursor(X+(Count-2),Y-1);  

    

  }

Sum = 0;

for(i=0;i<Count;i++)

 {

   if(BufNum[Count-(i+1)]==0x20){BufNum[Count-(i+1)] = '0';}

   Sum = (Sum*10) + (BufNum[Count-(i+1)]-'0');

 }

lcd.noCursor();

lcd.noBlink();

return(Sum);  

}

/*-------------------------------------------------------------*

*  Beep  Sound                                                 *

*-------------------------------------------------------------*/

void Beep()

{

  digitalWrite(Buzzer,LOW);delay(50);

  digitalWrite(Buzzer,HIGH);

}