This document summarizes an automatic room lighting system project created by students. The system uses a PIR motion sensor to detect movement and signal an Arduino board. When motion is detected, the Arduino activates a relay module to turn on an LED light. Without motion, the light will turn off. The document outlines the components, circuit diagram, working principle, simulation code, and applications of the system for automatically controlling lights and saving energy.

1. IPC PROJECT
AUTOMATIC ROOM
LIGHTENING SYSTEM
TEACHER-PROF. MADHURI KULKARNI
GROUP MEMBER- PRASAD SALUNKHE (119A4017)
SIDDHI BEDARKAR (220A4028)
RUCHA BORWADE (220A4031)

2. Tremendousadvancementintechnologyissucceededin
lastfewyears.Inrecentyearsthepeoplearelooking
forwardfortheautomationintheirdaytodaylife.Thenhow
thisautomationinroomlightingcanfarawayfromthat..??
Forsavingelectricalenergyandtowardsmorecomfortlife,
thisprojectwillhelpus.
1.Introduction

3. 2.Components used
1. PIR sensor - to sense motion and provide signal to Arduino
2. Arduino UNO - take signal from PIR sensor and activate the
relay module
3. 5V Relay Module (Relay Board) - allow a low power control
voltage
4. LED - lighting tool

4. 5.100Ω Resistor (1/4 Watt) - to limit current flow
6.Connecting Wires - for transferring the current supply
7. Breadboard - make electrical connections between
components
8. Power Supply - for providing electric current to run the
things
to be continued...

5. 3.Circuit Diagram

6. 4.Working Principle

7. 5.Simulation
5.1 Set-up

8. // Tinkercad Arduino Tutorials: Tutorials: Automatic Room Lightning Systemint LightSensorVal = 0;
//Input SEnsorint PIRSensorVal = 0; //Input Sint RelayOutputVal = 0; //Output Relay void setup(){
pinMode(A0, INPUT); // Read the LDR sensor Value digital Input pinMode(2, INPUT); // Read the
PIR motion sensor value digital Input pinMode(8, OUTPUT); // Write the Relay output value, digital
output Serial.begin(9600);}void loop(){ LightSensorVal = analogRead(A0); PIRSensorVal =
digitalRead(2); RelayOutputVal = 8; if (LightSensorVal < 600) { if (PIRSensorVal == HIGH) {
digitalWrite(8, HIGH); delay(5000); // Wait for 5000 millisecond(s) } else { digitalWrite(8,
LOW); delay(1000); // Wait for 1000 millisecond(s) } } else { digitalWrite(8, LOW);
Serial.println(LightSensorVal); delay(300); // Wait for 300 millisecond(s) }}
5.2 Code

9. 5.3 Final output

10. • Lamp will turn on if any moment detected by PIR sensor.
• Lamp will remain off if there is no any moment detected
by PIR sensor.
6. Results

11. A few applications of the
Automatic Room Lights
concept. Some of them are: 1.
Garage Lights
2. Bathroom Lights
3. Hand Dryers
4. Toilet Flushers
5. Security Lightsroom
7. Applications

12. 8.Cost estimation
Components Cost
Arduino UNO ₹ 550/-
PIR sensor ₹55 - ₹65/-
Single-Channel Relay Module ₹45 - ₹50/-
Other expenses (cost of led, resistor,
connecting wire, power supply)
₹ 30/-
Total ₹₹ 690/-

13. • In this project, we saw the where the lights in the room will automatically
turn ON and OFF by detecting the presence of a human.
• Means when there is need only then and there light will be present.
• Hence minimise the wastage of electrical power, and saving the energy.
9.Conclusion

14. Thank you..!!