Automatic Room Light Controller
Using PIR Sensor
Prepared by: EE Group 1
Branch: Electrical Engineering
Team Leader: Prakash Tamang
Introduction
• • Automatic room light controllers use PIR
sensors to detect motion.
• • They enhance energy efficiency by turning
lights on/off based on human presence.
• • Helps reduce electricity wastage and
improves convenience.
Team Members
• 1. Roshni Yadav (EE24B001)
• 2. Vikash Vishnoi (EE24B002)
• 3. Nandu Giba Tamin (EE24B003)
• 4. Radhe Siya (EE24B004)
• 5. Prakash Tamang (EE24B005) - Team Leader
Project Objectives
• • Energy Conservation: Reduces electricity
consumption by switching off unused lights.
• • Convenience: Hands-free operation for
better user experience.
• • Safety & Security: Lights turn on
automatically in dark areas.
• • Cost Efficiency: Helps lower electricity bills.
• • Sustainability: Reduces carbon footprint by
minimizing power wastage.
Components & Cost
• • PIR Sensor - ₹300
• • Relay Module - ₹150
• • Wires & Connectors - ₹250
• • PCB & Enclosure - ₹300
• • Bulb Holder - ₹100
• • Power Supply (12V) - ₹400
• • Arduino Nano - ₹500
• Total Cost: ₹2000
Circuit Diagram
Working Principle
• • PIR sensor detects motion by sensing
infrared radiation.
• • Sends a signal to Arduino, which processes
the data.
• • If movement is detected, the relay switches
the light ON.
• • If no movement for a specific duration, light
turns OFF automatically.
Step-by-Step Implementation
• 1. Connect PIR sensor, relay module, and light
to Arduino Nano.
• 2. Write and upload the Arduino code.
• 3. Test the system for motion-based light
control.
• 4. Secure the components in an enclosure for
final deployment.
Advantages & Applications
• • Saves energy and reduces electricity bills.
• • Ideal for homes, offices, and public spaces.
• • Enhances security by turning lights on when
motion is detected.
• • Can be expanded with IoT features for
remote control.
Conclusion
• • A smart lighting system that improves
efficiency and security.
• • Helps in energy conservation and cost
reduction.
• • Future enhancements may include LDR-
based daylight sensing or IoT integration.
References & Acknowledgment
• • Project report by EE Group 1
• • Datasheets of Arduino Nano & PIR Sensor
• • Online Arduino tutorials
• • Special thanks to mentors and peers.

Refined_Automatic_Room_Light_Controller.pptx

  • 1.
    Automatic Room LightController Using PIR Sensor Prepared by: EE Group 1 Branch: Electrical Engineering Team Leader: Prakash Tamang
  • 2.
    Introduction • • Automaticroom light controllers use PIR sensors to detect motion. • • They enhance energy efficiency by turning lights on/off based on human presence. • • Helps reduce electricity wastage and improves convenience.
  • 3.
    Team Members • 1.Roshni Yadav (EE24B001) • 2. Vikash Vishnoi (EE24B002) • 3. Nandu Giba Tamin (EE24B003) • 4. Radhe Siya (EE24B004) • 5. Prakash Tamang (EE24B005) - Team Leader
  • 4.
    Project Objectives • •Energy Conservation: Reduces electricity consumption by switching off unused lights. • • Convenience: Hands-free operation for better user experience. • • Safety & Security: Lights turn on automatically in dark areas. • • Cost Efficiency: Helps lower electricity bills. • • Sustainability: Reduces carbon footprint by minimizing power wastage.
  • 5.
    Components & Cost •• PIR Sensor - ₹300 • • Relay Module - ₹150 • • Wires & Connectors - ₹250 • • PCB & Enclosure - ₹300 • • Bulb Holder - ₹100 • • Power Supply (12V) - ₹400 • • Arduino Nano - ₹500 • Total Cost: ₹2000
  • 6.
  • 7.
    Working Principle • •PIR sensor detects motion by sensing infrared radiation. • • Sends a signal to Arduino, which processes the data. • • If movement is detected, the relay switches the light ON. • • If no movement for a specific duration, light turns OFF automatically.
  • 8.
    Step-by-Step Implementation • 1.Connect PIR sensor, relay module, and light to Arduino Nano. • 2. Write and upload the Arduino code. • 3. Test the system for motion-based light control. • 4. Secure the components in an enclosure for final deployment.
  • 9.
    Advantages & Applications •• Saves energy and reduces electricity bills. • • Ideal for homes, offices, and public spaces. • • Enhances security by turning lights on when motion is detected. • • Can be expanded with IoT features for remote control.
  • 10.
    Conclusion • • Asmart lighting system that improves efficiency and security. • • Helps in energy conservation and cost reduction. • • Future enhancements may include LDR- based daylight sensing or IoT integration.
  • 11.
    References & Acknowledgment •• Project report by EE Group 1 • • Datasheets of Arduino Nano & PIR Sensor • • Online Arduino tutorials • • Special thanks to mentors and peers.