ATmega32 Smart Room Project

This is an Atmel Studio project that implements a smart room control system using the ATmega32 microcontroller, written in C. The project features a real-time clock display, lighting control, automatic curtain operation, and a secure password access system. Additionally, a Proteus project file is provided for simulation and testing purposes.

Features

• Time Display: Real-time clock shown on the LCD, updated every second. Time setting via serial command.
• Lighting Control: Adjust room brightness (0-100%) via serial command, with current intensity shown on the LCD.
• Curtain Control: Open/close curtains via serial commands, with status displayed on the LCD.
• Secure Access: Password-protected (1234) serial control, auto-logout after 1 minute, requires re-entry to access.
• Help Command: Displays a list of supported commands for user reference.

Hardware Components

• ATmega32 Microcontroller: The brain of the system, managing all inputs, outputs, and logic.
• LCD Display: Used to show the current time, date, curtain status, and light intensity.
• DS3232 RTC Module: Maintains accurate time and date.
• Stepper Motor: Controls the opening and closing of the curtains.
• Relay: Used to control the room lighting.
• Serial Port: Enables interaction with the system via UART for setting time, controlling the lamp, and operating the curtains.

Libraries Used

• Liquid_crystal: Handles LCD communication.
• I2c_Lib: Low-level library for I2C communication.
• DS3232: Library for interfacing with the DS3232 RTC module.
• TWI: Another low-level I2C communication library.
• IO_Macros: Macros used by the TWI library.
• Serial: Manages serial communication with interrupt support.

Proteus Schematic

Simulating the Project

1. Open the provided Proteus project file SmartRoom.pdsprj in Proteus.
2. Click on the ATmega32 component to open its properties.
3. In the properties window, find the Program File section and click on the folder icon.
4. Navigate to the Debug folder within your Atmel Studio project directory.
5. Select the SmartRoom.hex file and click "Open."
6. Close the properties window.
7. Run the simulation by clicking the "Play" button in Proteus.

Serial Commands

Set the time

set time HH:MM:SS M/D/Y

Adjust the lamp brightness

set lamp LEVEL

Control the curtains

open curtain
close curtain

List available commands

help

Notes

• The curtain system assumes 190° motor rotation for full operation.
• The default password for accessing the system is 1234.
• Ensure that the correct time and date are set initially to maintain accurate RTC operation.
• The system auto-logs out after one minute of inactivity to secure the environment.

License

This project is licensed under the MIT License.