A feature-rich Microwave Oven Simulation developed in Embedded C using the PIC16F877A Microcontroller on the PICSimLab platform.
The project emulates the workflow of a real microwave oven, including multiple cooking modes, timer configuration, convection pre-heating, fan control, buzzer notifications, and an interactive 16x4 Character CLCD user interface.
This project was developed to demonstrate the implementation of an embedded real-time application using finite state machine (FSM) concepts, timers, keypad interfacing, CLCD display management, and peripheral control.
The application provides an intuitive menu-driven interface that allows users to select different cooking modes, configure cooking time and temperature, monitor cooking progress, and receive completion notifications.
- Interactive 16x4 Character CLCD Menu
- Matrix Keypad based user interface
- Multiple cooking modes
- Micro Mode
- Grill Mode
- Convection Mode
- Adjustable cooking timer
- Temperature configuration for convection cooking
- Automatic pre-heating sequence
- Fan control during cooking
- Buzzer indication after cooking completion
- Pause / Resume functionality
- Add 30 Seconds Quick Start feature
- Stop and return to Main Menu
- Timer countdown using interrupts
- Modular Embedded C implementation
| Component | Description |
|---|---|
| Microcontroller | PIC16F877A |
| Display | 16x4 Character CLCD |
| Input | Matrix Keypad |
| Fan | DC Cooling Fan |
| Buzzer | Piezo Buzzer |
| Timer | Internal Timer |
| IDE | MPLAB X IDE |
| Compiler | XC8 Compiler |
| Simulator | PICSimLab |
Power ON
│
▼
Powering ON Animation
│
▼
Main Menu
│
├── Micro Mode
│ │
│ ├── Display Power
│ ├── Set Time
│ └── Cooking
│
├── Grill Mode
│ │
│ ├── Set Time
│ └── Cooking
│
├── Convection Mode
│ │
│ ├── Set Temperature
│ ├── Pre-Heating
│ ├── Set Time
│ └── Cooking
│
└── Start
│
▼
Timer Running
│
├── Add 30 Seconds
├── Pause
├── Resume
└── Stop
│
▼
Time Up
│
▼
Buzzer + Fan OFF
│
▼
Main Menu
- Displays cooking power (900W)
- User sets cooking time
- Starts countdown
- Fan runs during cooking
- Buzzer rings after completion
- Time-based cooking
- No power display
- Fan operates while cooking
- Buzzer indicates completion
Additional features include:
- Temperature configuration
- Maximum temperature: 180°C
- Automatic 60-second pre-heating
- After pre-heating, cooking timer begins
- Fan runs throughout cooking
- Startup welcome screen
- Simulates microwave boot sequence
- MM:SS format
- Numeric keypad entry
- Clear option
- Enter confirmation
- Available only in Convection Mode
- User configurable
- Maximum temperature supported: 180°C
Supports:
- Start
- Pause
- Resume
- Stop
- Add 30 Seconds
When timer reaches zero:
- Fan turns OFF
- Buzzer turns ON
- CLCD displays
TIME UP
Enjoy your Meal!
Then automatically returns to Main Menu.
- Embedded C
- Finite State Machine (FSM)
- Modular Programming
- Timer Interrupts
- CLCD Driver
- Matrix Keypad Driver
- GPIO Programming
- Peripheral Interfacing
- Real-Time Event Handling
Microwave_Oven/
│
├── main.c
├── microwave.c
├── microwave.h
├── keypad.c
├── keypad.h
├── clcd.c
├── clcd.h
├── timer.c
├── timer.h
├── interrupt.c
├── interrupt.h
├── power_on.png
├── main_menu.png
├── power.png
├── set_time.png
├── set_temperature.png
├── pre_heating.png
├── run_mode.png
├── meal_ready.png
└── README.md
This project strengthened my understanding of:
- Embedded System Design
- PIC16F877A Architecture
- Timer Interrupt Programming
- CLCD Interface
- Matrix Keypad Scanning
- Event-driven Programming
- State Machine Design
- Real-time Embedded Application Development
- Peripheral Control and Hardware Interfacing
- EEPROM storage for last cooking settings
- RTC integration
- Door open/close detection
- Child lock feature
- Multiple power levels
- Defrost mode
- Auto cooking presets
- Audible keypad feedback
- Temperature sensing using LM35
- UART debugging support
Yogesh B
Embedded Systems | C Programming | PIC16F877A | Embedded C | Microcontrollers
⭐ If you found this project useful, consider giving this repository a Star.