Smart Attendance System with AVR Microcontroller

📋 Table of Contents

1. Project Overview
2. Key Features
3. Hardware Components
4. Setup & Simulation
5. Course Information

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🚀 Project Overview

An intelligent attendance tracking system built around the ATmega32 microcontroller that combines:

✅ Automated attendance management with time-limited registration
✅ Environmental monitoring (temperature & room occupancy)
✅ Multiple input methods (Keypad + Simulated RFID)
✅ Persistent data storage using EEPROM and USART communication

Designed for educational environments to streamline attendance while monitoring classroom conditions.

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✨ Key Features

⏱ Smart Attendance Tracking

• Configurable registration time window
• Dual input methods:
  • 8-digit keypad entry
  • RFID simulation (via virtual terminal)
• Real-time validation with audio/visual feedback

👨‍🎓 Student Management

• Search function: Check individual attendance status
• Data maintenance: Delete student records
• Attendance reports: View present students with timestamps

🌡 Environmental Monitoring

• Real-time temperature readings (LM35 sensor)
• Classroom traffic analysis (Ultrasonic sensor)
• Continuous LCD display of sensor data

🔄 Data Handling

• EEPROM storage for persistent records
• USART communication for data export
• System status feedback via LCD messages

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🔧 Hardware Components

Component	Usage
ATmega32 MCU	System brain
LM017L LCD	User interface display
4x4 Keypad	Student ID input
Buzzer	Audio feedback
HCSR04 Ultrasonic	People counting
LM35	Temperature sensing
DS1307 RTC	Timekeeping
Virtual Terminals	RFID simulation & data monitoring

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💻 Setup & Simulation

Requirements

• Proteus 8 Professional
• CodeVisionAVR (or compatible compiler)

Step-by-Step Guide

1. Clone the repository:

   git clone https://github.com/LC3Computer/Smart_Attendance_System.git
   cd Smart_Attendance_System

2. Open the Proteus simulation:

   • Launch microFinalProjectProteusSimulate.pdsprj

3. Compile the source code:

   • Open in CodeVisionAVR
   • Generate new .hex file

4. Configure the MCU:

   • Set clock frequency to 8MHz
   • Load the compiled .hex file

5. Run the simulation:

   • Interact via keypad
   • Monitor LCD and virtual terminals
   • Observe sensor responses

Note

The RFID functionality is simulated through virtual terminals in the Proteus environment.

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🎓 Course Information

Microprocessor Course
Isfahan University of Technology
Electrical Engineering Department

Project demonstrates practical application of:

• AVR microcontroller programming
• Peripheral interfacing (sensors, displays)
• Real-time system design
• Embedded data management