How to make 'binary counter' using 74HC595 & Arduino Nano?

 

Arduino Code:

int stcp_Pin = 4;

int shcp_Pin = 3;
int ds_Pin = 2;

void setup() {
  pinMode(stcp_Pin, OUTPUT);
  pinMode(shcp_Pin, OUTPUT);
  pinMode(ds_Pin, OUTPUT);  
}

void loop() {
  for(int number=0; number<256; number++){
      digitalWrite(stcp_Pin,LOW);
      shiftOut(ds_Pin,shcp_Pin,LSBFIRST,number);
      digitalWrite(stcp_Pin,HIGH);
      delay(100);
    }
}

How to make 'LCD Count Down (60mins) & Recovery (10mins) timer' using Arduino (nano or Uno)?

Arduino Code:

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

 

void setup() 

{

   lcd.begin(16, 2);

}

 

void loop() 

{

  int i;

  lcd.clear(); // Display is getting cleared

  delay(1000);

  lcd.setCursor(0, 0); // First row of the LCD Display

  lcd.print("Count-Down Timer");

  delay(500);

  

  for(i=0;i<=60;i++)

  {

    lcd.setCursor(0, 1); // Second row of the LCD Display

    lcd.print("Seconds = ");

    lcd.setCursor(10, 1);

    lcd.print(i);

    delay(1000);

  }

    lcd.clear(); // Display is getting cleared

    delay(500);

    

//Recovery Timer

     lcd.setCursor(0, 0);

     lcd.print("Recovery Timer");

     lcd.setCursor(0, 1);

     lcd.print("Seconds = ");

   for(i=0;i<=10;i++)

   {

     lcd.setCursor(10, 1);

     lcd.print(i);

     delay(1000);

   }

   lcd.clear(); // Display is getting cleared

   delay(500);

}

 

Arduino Nano Pin Out