counter.ino

https://edisonsciencecorner.blogspot.com/
https://edisonsciencecorner.blogspot.com/
https://edisonsciencecorner.blogspot.com/


#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);  

int counter = 0;


const int  Up_buttonPin   = 2;    

const int  Down_buttonPin = 3;


int buttonPushCounter = 0;   // counter for the number of button presses

int up_buttonState = 0;         // current state of the up button

int up_lastButtonState = 0;     // previous state of the up button



int down_buttonState = 0;         // current state of the up button

int down_lastButtonState = 0;     // previous state of the up button

bool bPress = false;



byte LT[8] = 

{



  B00111,

  B01111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111

};

byte UB[8] =

{

  B11111,

  B11111,

  B11111,

  B00000,

  B00000,

  B00000,

  B00000,

  B00000

};

byte RT[8] =

{



  B11100,

  B11110,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111

};

byte LL[8] =

{





  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B01111,

  B00111

};

byte LB[8] =

{

  B00000,

  B00000,

  B00000,

  B00000,

  B00000,

  B11111,

  B11111,

  B11111

};

byte LR[8] =

{





  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11110,

  B11100

};

byte MB[8] =

{

  B11111,

  B11111,

  B11111,

  B00000,

  B00000,

  B00000,

  B11111,

  B11111

};

byte block[8] =

{

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111

};



void setup()

{

  pinMode( Up_buttonPin , INPUT_PULLUP);

  pinMode( Down_buttonPin , INPUT_PULLUP);

  

  lcd.begin();                      // initialize the lcd 



  lcd.createChar(0,LT);

  lcd.createChar(1,UB);

  lcd.createChar(2,RT);

  lcd.createChar(3,LL);

  lcd.createChar(4,LB);

  lcd.createChar(5,LR);

  lcd.createChar(6,MB);

  lcd.createChar(7,block);

  

  // Print a message to the LCD.

  lcd.backlight();

   

  lcd.clear();



  displayNumber();

   

}



void printNumber(int val){

  

     int col=5;     

     

     if( val >= 10){

       printDigits(val/10,col);     

       printDigits(val%10,col+4);

     }

     else{

       printDigits(val,col);

     }

}



void loop()

{

   checkUp();

   checkDown();



   if( bPress){

       bPress = false;

       displayNumber();

   }

}

void displayNumber(){

    

    lcd.clear();

    lcd.setCursor(0,0);

    lcd.print("NO:"); 
lcd.setCursor(10,0);
    printNumber( buttonPushCounter);

    

}

void custom0(int x){ 



  lcd.setCursor(x,0); 

  lcd.write(0);  

  lcd.write(1);  

  lcd.write(2);

  lcd.setCursor(x, 1); 

  lcd.write(3);  

  lcd.write(4);  

  lcd.write(5);

}



void custom1(int x){

  lcd.setCursor(x,0);

  lcd.write(1);

  lcd.write(2);

  lcd.print(" ");

  lcd.setCursor(x,1);

  lcd.write(4);

  lcd.write(7);

  lcd.write(4);

}



void custom2(int x){

  lcd.setCursor(x,0);

  lcd.write(6);

  lcd.write(6);

  lcd.write(2);

  lcd.setCursor(x, 1);

  lcd.write(3);

  lcd.write(4);

  lcd.write(4);

}



void custom3(int x){

  lcd.setCursor(x,0);

  lcd.write(6);

  lcd.write(6);

  lcd.write(2);

  lcd.setCursor(x, 1);

  lcd.write(4);

  lcd.write(4);

  lcd.write(5); 

}



void custom4(int x){

  lcd.setCursor(x,0);

  lcd.write(3);

  lcd.write(4);

  lcd.write(7);

  lcd.setCursor(x, 1);

  lcd.print(" ");

  lcd.print(" ");

  lcd.write(7);

}



void custom5(int x){

  lcd.setCursor(x,0);

  lcd.write(3);

  lcd.write(6);

  lcd.write(6);

  lcd.setCursor(x, 1);

  lcd.write(4);

  lcd.write(4);

  lcd.write(5);

}



void custom6(int x){

  lcd.setCursor(x,0);

  lcd.write(0);

  lcd.write(6);

  lcd.write(6);

  lcd.setCursor(x, 1);

  lcd.write(3);

  lcd.write(4);

  lcd.write(5);

}



void custom7(int x){

  lcd.setCursor(x,0);

  lcd.write(1);

  lcd.write(1);

  lcd.write(2);

  lcd.setCursor(x, 1);

  lcd.print(" ");

  lcd.print(" ");

  lcd.write(7);

}



void custom8(int x){

  lcd.setCursor(x,0);

  lcd.write(0);

  lcd.write(6);

  lcd.write(2);

  lcd.setCursor(x, 1);

  lcd.write(3);

  lcd.write(4);

  lcd.write(5);

}



void custom9(int x){

  

  lcd.setCursor(x,0);

  lcd.write(0);

  lcd.write(6);

  lcd.write(2);

  lcd.setCursor(x, 1);

  lcd.print(" ");

  lcd.print(" ");

  lcd.write(7);



}

void printDigits(int digits, int x){

  // utility function for digital clock display: prints preceding colon and leading 0



  switch (digits) {

  case 0:  

    custom0(x);

    break;

  case 1:  

    custom1(x);

    break;

  case 2:  

    custom2(x);

    break;

  case 3:  

    custom3(x);

    break;

  case 4:  

    custom4(x);

    break;

  case 5:  

    custom5(x);

    break;

  case 6:  

    custom6(x);

    break;

  case 7:  

    custom7(x);

    break;

  case 8:  

    custom8(x);

    break;

  case 9:  

    custom9(x);

    break;



  }



}



void checkUp()

{

  up_buttonState = digitalRead(Up_buttonPin);



  // compare the buttonState to its previous state

  if (up_buttonState != up_lastButtonState) {

    // if the state has changed, increment the counter

    if (up_buttonState == LOW) {

        bPress = true;

      // if the current state is HIGH then the button went from off to on:

      buttonPushCounter++;

      Serial.println("on");

      Serial.print("number of button pushes: ");

      Serial.println(buttonPushCounter);

    } else {

      // if the current state is LOW then the button went from on to off:

      Serial.println("off");

    }

    // Delay a little bit to avoid bouncing

    delay(50);

  }

  // save the current state as the last state, for next time through the loop

  up_lastButtonState = up_buttonState;

}

void checkDown()

{

  down_buttonState = digitalRead(Down_buttonPin);



  // compare the buttonState to its previous state

  if (down_buttonState != down_lastButtonState) {

    // if the state has changed, increment the counter

    if (down_buttonState == LOW) {

        bPress = true;

      // if the current state is HIGH then the button went from off to on:

      buttonPushCounter--;

     

      Serial.println("on");

      Serial.print("number of button pushes: ");

      Serial.println(buttonPushCounter);

    } else {

      // if the current state is LOW then the button went from on to off:

      Serial.println("off");

    }

    // Delay a little bit to avoid bouncing

    delay(50);

  }

  // save the current state as the last state, for next time through the loop

  down_lastButtonState = down_buttonState;

}