Download the Proteus software.

Step 1: To Make a Virtual Calculator Using Proteus Software

Download libraries in Proteus software.

This project is made using components

ARDUINO

LCD 16x2

KEYPAD SMALLCALC

POT -HG

Step 2: Connect the Circuit As Shown in Figure in Proteus Software

Step 3: Download Arduino Software, Then Add Keypad.h Library

Arduino program link for making calculator in proteus software

Step 4: Convert the Aurdino File Into .hex

For converting Arduino file into .hex go to sketch in Arduino then click on export compiled binary. After doing that the Arduino file will be converted into .hex extension.

Step 5: Upload the Arduino Programmed File in Proteus Arduino Software

As shown in the above figure upload the .hex extension file in Proteus Arduino software. To upload the Arduino programmed .hex extension file click on the files tab as shown in figure then upload the .hex extension file and then click ok.

Then click on the run button which is in the bottom of the Proteus software. Then that virtual calculator acts as a calculator.