Serial Output from Arduino Uno Board

Below code does the following:

• Read the analog input over A5 pin
• Output the read value to 16x2 LCD
• Output the data on serial port @ baud of 9600

// include the library code:

#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin

// with the arduino pin number it is connected to

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

int potValue = 0;

void setup() {   

  // set up the LCD's number of columns and rows:

  lcd.begin(16, 2);

  // Print a message to the LCD.

  lcd.print("Hi 4m Way2Know");

  Serial.begin(9600);

}

void loop() {

  // set the cursor to column 0, line 1

  // (note: line 1 is the second row, since counting begins with 0):

  lcd.setCursor(0, 1);

  potValue = analogRead(A5);

  lcd.print(potValue);

  

  Serial.print(potValue); //default baud of 9600

  Serial.println(); //prints a carriage return

  delay(500);

  lcd.clear();

  lcd.print("Hi 4m Way2Know");

}

Serial output:

Get the explanation of the code from below video: