This document describes a student project to design a fire detection sensor. It used an LM35 temperature sensor, Arduino UNO board, and LCD screen. The sensor was simulated in Proteus and was programmed to trigger an alarm on the LCD if the temperature exceeded 60 degrees Celsius, displaying the temperature reading. The project report includes an abstract, circuit diagram, code, and results of the simulation testing the temperature threshold.

1. FIRE DETECTION SENSOR
A MINOR PROJECT REPORT
Submitted by
ARAVIIND N KUMAR BL.EN.U4EEE13006
A. SRIDHAR BL.EN.U4EEE13007
A VENKATA ABHINAV BL.EN.U4EEE13009
VIJAY BHARGAVA BL.EN.U4EEE13011
in partial fulfillment of the award of the degree
of
BACHELOR OF TECHNOLOGY
IN
ELECTRICAL & ELECTRONICS ENGINEERING
AMRITA SCHOOL OF ENGINEERING, BENGALURU
AMRITA VISHWA VIDYAPEETHAM,BENGALURU-35

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ACKNOWLEDGEMENT
I humbly dedicate this project at the lotus feet of our beloved AMMA, Mata
Amritanandamayi Devi.
I would like to convey my thankfulness to Dr. Rakesh S. G., Associate Dean, Amrita school
of Engineering, Bangaluru.
I also take this opportunity to thank Dr. Ravishankar S. Chairman, Electrical and
Electronics Engineering Department, for his motivation and valuable help during the project
work.
I express our sincere gratitude to my guides, Mrs. Sreekala M and Mrs. Sudha Yadhav.,
Assistant Professor, Electrical and Electronics Engineering Department, for their inestimable
guidance, immense and sincere help and encouragement given during the entire course of
project work.
I express my sincere thanks to all the staff of Department of EEE for their kind help and
cooperation.
I express my special thanks to all my classmates, friends and my family who helped a lot to
complete this project successfully.
Above all, I thank Almighty for giving me the strength, courage and blessings to complete
this project.

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Contents
Page No.
1 :Abstract 5
2 : Simulation Diagram & Circuit Model 6
3:Code 7-8
4:Result 8

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1.Abstract
The whole aim of this project is to design a fire sensor, the implementation of this
project was performed using LM 35 sensor ,UNO board and LCD screen the output was
to be simulated in a PROTEUS simulation and the constrains of fire were to be set as 60
degree Celsius and any temperature above this would give an alarming display on the
LCD screen.

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3.Simulation Diagram & Circuit Model

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3.Code
#include<LiquidCrystal.h>
int A=0;
int B;
int sensorpin=A0;
int fan= 13;
int min_temp=120;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup()
{
lcd.begin(16, 2);
pinMode(fan,OUTPUT);
}
void loop()
{
A= analogRead(sensorpin);
if(A < min_temp )
{
digitalWrite(fan, LOW);
lcd.setCursor(0,0);
lcd.print("HELLO EVERYONE");
lcd.setCursor(5,1);
lcd.print(A/2-1);
lcd.setCursor(7,1);
lcd.print("c");
delay(1000);

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lcd.clear();
}
if(A >= min_temp)
{
digitalWrite(fan, HIGH);
lcd.setCursor(0,0);
lcd.print("THERE'S FIRE");
lcd.setCursor(5,1);
lcd.print(A/2-1);
lcd.setCursor(7,1);
lcd.print("c");
delay(1000);
lcd.clear();
}
}
Result:
A temperature sensor was designed using LM 35 temperature sensor wherein the limit of fire was
set as 60 degree Celsius , the program was designed with the above temperature constrain and
dumped into an UNO board in PROTEUS environment and the output result of fire was displayed on
the LCD screen.