🏠 Smart Home Automation Controller on FPGA

A parameterized FPGA-based Smart Home Automation System developed using Verilog HDL. The project integrates intelligent lighting control, temperature-based fan automation, intrusion detection, scene management, and energy-saving features through a Finite State Machine (FSM) architecture.

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📖 Overview

The Smart Home Automation Controller continuously monitors environmental conditions using multiple sensors and automatically controls household appliances. The system is designed with a modular RTL architecture, making it suitable for FPGA implementation and scalable for future enhancements.

Key Features

• Motion-Based Automatic Lighting
• Temperature-Controlled Fan Operation
• Door Intrusion Detection and Alarm System
• Multiple Scene Selection Modes
• Energy Saving Mode
• FSM-Based Control Logic
• PWM-Based Output Control
• Modular RTL Design
• Comprehensive Verification Environment
• GTKWave Timing Analysis

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🛠 Technology Stack

Hardware Description Language

• Verilog HDL

Simulation & Verification

• Icarus Verilog
• GTKWave

Design Methodology

• RTL Design
• Finite State Machine (FSM)
• Digital Logic Design
• FPGA-Oriented Development

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📂 Project Structure

Smart-Home-Automation-FPGA/

├── constraints/

│ └── top.xdc

├── docs/

│ ├── Architecture.md

│ ├── FSM_Design.md

│ └── Project_Overview.md

├── images/

│ ├── architecture_diagram.png

│ ├── block_diagram.png

│ ├── fsm_diagram.png

│ ├── output_results.png

│ └── project_workflow.png

├── reports/

│ ├── design_summary.md

│ ├── project_statistics.md

│ └── verification_report.md

├── rtl/

│ ├── pwm_generator.v

│ ├── scene_controller.v

│ ├── security_controller.v

│ ├── sensor_interface.v

│ ├── smart_home_controller.v

│ ├── timer.v

│ └── top.v

├── simulation/

│ ├── compile_commands.txt

│ ├── simulation_log.txt

│ └── verification_results.txt

├── tb/

│ ├── smart_home_tb.v

│ └── test_cases.txt

├── waveforms/

│ ├── auto_fan.png

│ ├── auto_light.png

│ ├── energy_save.png

│ ├── scene_modes.png

│ ├── security_alarm.png

│ └── system_verification.png

├── LICENSE

├── README.md

├── requirements.txt

└── .gitignore

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🏗 Architecture Diagram

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🔧 RTL Block Diagram

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🔄 FSM Diagram

FSM States

State	Description
IDLE	System Monitoring State
AUTO_LIGHT	Automatic Lighting Control
AUTO_FAN	Automatic Fan Control
SCENE_MODE	User Scene Selection
ENERGY_SAVE	Power Saving Operation

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⚙ Project Workflow

Workflow

1. Sensor Inputs are monitored continuously.
2. Sensor Interface processes incoming signals.
3. FSM evaluates current conditions.
4. Controllers determine required actions.
5. PWM generators produce output control signals.
6. Appliances are activated accordingly.

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📊 Simulation Results

Complete Verification Results

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System Verification

Complete system-level verification demonstrating sensor activity, FSM transitions, alarm generation, scene switching, and energy management.

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Automatic Lighting Control

Condition

• Motion Detected
• Dark Environment

Action

• Light PWM Enabled

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Automatic Fan Control

Condition

• High Temperature Detected

Action

• Fan PWM Enabled

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Security Alarm Operation

Condition

• Door Opened During Security Monitoring

Action

• Alarm Triggered

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Scene Mode Operation

Available Scenes

• Scene 001 – Reading Mode
• Scene 010 – Movie Mode
• Scene 011 – Night Mode

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Energy Saving Mode

Condition

• No Motion Detected
• No Temperature Alert
• No Active Scene

Action

• Energy Saving Mode Activated

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▶ Simulation Steps

Compile Design

iverilog -o smart_home_sim rtl/*.v tb/smart_home_tb.v

Run Simulation

vvp smart_home_sim

Open Waveforms

gtkwave smart_home.vcd

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📈 Verification Summary

Module	Status
Sensor Interface	✅ Pass
FSM Controller	✅ Pass
Auto Lighting	✅ Pass
Auto Fan Control	✅ Pass
Security Alarm	✅ Pass
Scene Controller	✅ Pass
Energy Save Logic	✅ Pass
PWM Generator	✅ Pass
System Integration	✅ Pass

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🚀 Future Enhancements

• IoT Connectivity
• Mobile Application Integration
• Wi-Fi Monitoring Dashboard
• Cloud-Based Automation
• Voice Assistant Integration
• AI-Based Occupancy Detection
• Smart Energy Analytics
• Multi-Room Automation

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🎯 Applications

• Smart Homes
• Smart Buildings
• Residential Automation
• Energy Management Systems
• Industrial Monitoring
• Security Systems
• FPGA-Based Embedded Applications

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👩‍💻 Author

Vaishnava Devi

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📄 License

This project is licensed under the MIT License.

See the LICENSE file for more details.