This project is a cross-platform calculator that integrates hardware input using an AVR-based keypad. It was developed as the final project for the ITI Intake 45 Intro to Java Course.
The Calculator application runs on a PC using a JavaFX interface and supports both standard keyboard input and input from an external AVR-based keypad connected via USB-to-Serial communication. The project demonstrates embedded systems integration with a desktop GUI using serial communication.
- Abdelrhman Abdelaziz Fayed
- Mariam HossamEldin Saleh
- Mousa Mahmoud Salah
- Perform basic arithmetic operations (addition, subtraction, multiplication, division).
- Input from both:
- JavaFX UI (via mouse/keyboard)
- External AVR-based hardware keypad (via serial port)
- Real-time interaction between PC and embedded device
- JavaFX – for the desktop GUI
- Java Serial Communication – for interfacing with the AVR device
- AVR Microcontroller – for the keypad interface and serial transmission
- USB-to-Serial Converter – for connecting the AVR device to the PC
- The AVR microcontroller reads key presses from a connected keypad.
- When a key is pressed, the AVR sends a corresponding character over the serial port.
- The JavaFX application listens to the serial port and displays the character on the calculator screen, processing input just as if it came from the GUI.