Arduino Calculator with Atmega328p Proteus Simulation

This repository presents an Arduino project that implements a simple calculator using a 4x4 keypad and an LCD display. Additionally, a Atmega328p Proteus simulation is included to visualize the circuit and test the functionality without the need for physical components.

Video in which I explained the code

You will find a video in which I explain the code with audio here.

Hardware Setup

• Connect the rows (r1-r4) to pins 0-3 on the Arduino.
• Connect the columns (c1-c4) to pins 4-7 on the Arduino.
• Connect the LCD display to pins 8-13 on the Arduino.

Keypad Layout

The keypad layout is as follows:

7 8 9 /
4 5 6 *
1 2 3 -
C 0 = +

Usage

1. Enter the first number using the keypad.
2. Press an operator (+, -, *, /).
3. Enter the second number.
4. Press '=' to see the result on the LCD display.
5. Press 'C' to clear the calculator and start over.

Repository Structure

• Calculator.ino: Arduino code for simple Calculator implementation.
• Calculator.pdsprj: Proteus simulation file for visualizing the implementation.
• Calculator.ino.with_bootloader.hex: The hex file from the arduino compile.
• Explaining mycode.mp4: This is a short video of the arduino code and the proteus implementation , you will find it with Audio here.

Feel free to explore, modify, and use this code and simulation for your own Arduino and Proteus projects!