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Project Title

Addition of two numbers using Arduino with lcd display

Description

The addition of two numbers using arduino with lcd display is a simple electronics and mathematics project used to demonstrate how a microcontroller can perform basic arithmetic operations.In this project these input values represent two numbers.The arduino processes these numbers using a program written in the arduino IDE and performs the addition operation.

Ardunio is an open source microcontroller platform widely used for educational and industrial applications.It is easy to program and interface with electronic components.In this project the ardunio acts as the brain of the system.The two input numbers are stored in variables inside the program.

The arduino processes these values using mathematical operators and calculates the sum.The final result is then displayed on the LCD screen. The project usually uses an arduino Uno board a 16*2 LCD display jumper wires a breadboard and power source.Some advanced versions may include a keypad or push buttons for entering numbers manually.The ardunio program is written in the arduino IDE using simple C/C++ Language.The working process of the project is simple.After power is supplied the ardunio initializes the LCD display and stores the numbers in memory.

The operations is performed internally using the “+”operator.The arduino then sends the result to the lcd display.The project is very useful in educational laboratories because it helps students learn practical electronics and programming together.It improves logical thinking and problem solving skills.The same concept can later be expanded into more advanced projects such as calculators,biling systems,digital counters,and automatic measurement systems.

This project is low cost easy to assemble and beginner friendly.It does not require advanced electronics knowledge.Students can easily modify the program to perform subtraction,multiplication,and division operations. Overall the “Addition of two numbers using Arduino”project is an excellent introduction to the world of embedded systems and automation.It provides hands on learning experience and builds a strong foundation for future electronics and programming projects.

Components Used

Arduino Uno
16*2 LCD display
Jumper wires

Connection Steps

First place the lcd display
LCD of GND pin–GND
LCD of VCC pin–+5v
SDA pin–Analog pin A4
SCL pin–Analog pin A5
Connect to the arduino UNO Board
Upload Arduino code

Arduino Code


#include <Wire.h>
#include <LiquidCrystal_I2C.h>


// Initialize the LCD at address 0x27 (16 columns, 2 rows)
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  lcd.init();
  lcd.backlight();

  int num1 = 15;
  int num2 = 50;
  int sum = num1 + num2;

  // Row 1
  lcd.setCursor(0, 0);
  lcd.print("Calc: ");
  lcd.print(num1);
  lcd.print("+");
  lcd.print(num2);

  // Row 2
  lcd.setCursor(0, 1);
  lcd.print("Sum = ");
  lcd.print(sum);
}

void loop() {
  // Empty loop
}

Applications

Educational Tool
Digital calculator concept
Embedded system learning
Interactive learning for kids
prototype for mathematical devices
Electronics lab experiment
Biling system
Electronic voting system
Banking machines
Measurement system
Industrial automation

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What is addition of a two number?

Addition of two numbers is the mathematical process of combining two values to get a total value called the sum.

Working Principle
Arduino receives two numbers from the program or input devices.
The microcontroller stores the numbers in variables.
It performs the addition operation.
The result is calculated internally.
Arduino sends the result to the lcd display.
The lcd displays the first number,second number,and final sum.

Advantages

Simple and easy to understand
Low cost project
Beginner friendly
Improves coding skills
Helps understand lcd interfacing
Demonstrates real time output
Easy to modify and upgrade
Useful for educational demonstrations

Disadvantages

Limited mathematical operation
Limited processing speed
Small display size
Manual programming required
Limited memory capacity
Wiring complexity for beginners
No data storage feature
Require external power supply
Limited input options
No suitable for industrial level calculations
Lcd visibility problems
lack of portability
Dependence on software
Limited expandability
Slow user interaction
Possibility of hardware damage
Basic security
Requires technical knowledge
No battery backup
Limited real world usage

Limitations

Can handle only basic arithmetic
LCD display has limited characters
Manual input may be required
Limited processing capability
Not suitable for advanced calculations
Requires proper wiring connections

Addition of two numbers using Arduino with lcd display