Automated Home with Safety System and Fire Sensor

Prototype home safety system, fully Automated with the help of Arduino Uno. 3 main features : Fire System, Card Reader and Motion Sensor

May 11, 2021

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Devices & Components

16x2 LCD display with I²C interface

Arduino Uno Rev3

LED (generic)

Gravity: Analog Flame Sensor For Arduino

Relay Subbase, DC Type

Male/Female Jumper Wires

RFID reader (generic)

PIR Motion Sensor (generic)

Breadboard (generic)

Buzzer, Piezo

Jumper wires (generic)

RFID Module (Generic)

Hardware & Tools

Soldering iron (generic)

Software & Tools

Arduino IDE

Project description

Code

Code for the Flame Sensor

arduino

1#include <Wire.h> 
2#include <LiquidCrystal_I2C.h>
3
4// Set the   LCD address to 0x27 for a 16 chars and 2 line display
5LiquidCrystal_I2C lcd(0x27,   16, 2);
6
7int flameSensorPin = 0; // input pin for flame sensor
8int fR;   // reading of the flame sensor
9int buzzerPin=8; // pin assigned to buzzer
10int   tt=1023;
11void setup(void) 
12{  
13  Serial.begin(9600); // starting the serial   monitor
14  pinMode(buzzerPin,OUTPUT); // output for the buzzer
15   pinMode(7,   OUTPUT); // output for the DC relay
16} 
17void loop(void) 
18{ 
19  fR = analogRead(flameSensorPin);   // reads the flamesensor pin
20
21  
22  if(fR<1023) //if loop for flame detected
23            {
24            
25            digitalWrite(7, HIGH); //DC relay turned   on
26            digitalWrite(buzzerPin,HIGH); //buzzer turned on
27            delay(1000);   
28            digitalWrite(7, LOW); //DC relay turned on
29
30            //   initialize the LCD
31  lcd.begin();
32
33  // Turn on the blacklight and print   a message.
34  lcd.backlight();
35  lcd.print("LCD is Working");
36              
37                          }
38else                           // incase no fire detected
39           {
40           digitalWrite(buzzerPin,LOW);
41           digitalWrite(7,   LOW);   
42           delay(1000);
43                        }
44
45 Serial.print("Analog   reading = "); 
46 Serial.println(fR); // the raw analog reading delay(1000); 
47   delay(500);
48}
49

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// Set the   LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27,   16, 2);

int flameSensorPin = 0; // input pin for flame sensor
int fR;   // reading of the flame sensor
int buzzerPin=8; // pin assigned to buzzer
int   tt=1023;
void setup(void) 
{  
  Serial.begin(9600); // starting the serial   monitor
  pinMode(buzzerPin,OUTPUT); // output for the buzzer
   pinMode(7,   OUTPUT); // output for the DC relay
} 
void loop(void) 
{ 
  fR = analogRead(flameSensorPin);   // reads the flamesensor pin

  
  if(fR<1023) //if loop for flame detected
            {
            
            digitalWrite(7, HIGH); //DC relay turned   on
            digitalWrite(buzzerPin,HIGH); //buzzer turned on
            delay(1000);   
            digitalWrite(7, LOW); //DC relay turned on

            //   initialize the LCD
  lcd.begin();

  // Turn on the blacklight and print   a message.
  lcd.backlight();
  lcd.print("LCD is Working");
              
                          }
else                           // incase no fire detected
           {
           digitalWrite(buzzerPin,LOW);
           digitalWrite(7,   LOW);   
           delay(1000);
                        }

 Serial.print("Analog   reading = "); 
 Serial.println(fR); // the raw analog reading delay(1000); 
   delay(500);
}

Code for the Flame Sensor

arduino

1#include <Wire.h> 
2#include <LiquidCrystal_I2C.h>
3
4// Set the  LCD address to 0x27 for a 16 chars and 2 line display
5LiquidCrystal_I2C lcd(0x27,  16, 2);
6
7int flameSensorPin = 0; // input pin for flame sensor
8int fR;  // reading of the flame sensor
9int buzzerPin=8; // pin assigned to buzzer
10int  tt=1023;
11void setup(void) 
12{  
13  Serial.begin(9600); // starting the serial  monitor
14  pinMode(buzzerPin,OUTPUT); // output for the buzzer
15   pinMode(7,  OUTPUT); // output for the DC relay
16} 
17void loop(void) 
18{ 
19  fR = analogRead(flameSensorPin);  // reads the flamesensor pin
20
21  
22  if(fR<1023) //if loop for flame detected
23           {
24            
25            digitalWrite(7, HIGH); //DC relay turned  on
26            digitalWrite(buzzerPin,HIGH); //buzzer turned on
27            delay(1000);  
28            digitalWrite(7, LOW); //DC relay turned on
29
30            //  initialize the LCD
31  lcd.begin();
32
33  // Turn on the blacklight and print  a message.
34  lcd.backlight();
35  lcd.print("LCD is Working");
36              
37                         }
38else                           // incase no fire detected
39          {
40           digitalWrite(buzzerPin,LOW);
41           digitalWrite(7,  LOW);   
42           delay(1000);
43                        }
44
45 Serial.print("Analog  reading = "); 
46 Serial.println(fR); // the raw analog reading delay(1000); 
47  delay(500);
48}
49

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// Set the  LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27,  16, 2);

int flameSensorPin = 0; // input pin for flame sensor
int fR;  // reading of the flame sensor
int buzzerPin=8; // pin assigned to buzzer
int  tt=1023;
void setup(void) 
{  
  Serial.begin(9600); // starting the serial  monitor
  pinMode(buzzerPin,OUTPUT); // output for the buzzer
   pinMode(7,  OUTPUT); // output for the DC relay
} 
void loop(void) 
{ 
  fR = analogRead(flameSensorPin);  // reads the flamesensor pin

  
  if(fR<1023) //if loop for flame detected
           {
            
            digitalWrite(7, HIGH); //DC relay turned  on
            digitalWrite(buzzerPin,HIGH); //buzzer turned on
            delay(1000);  
            digitalWrite(7, LOW); //DC relay turned on

            //  initialize the LCD
  lcd.begin();

  // Turn on the blacklight and print  a message.
  lcd.backlight();
  lcd.print("LCD is Working");
              
                         }
else                           // incase no fire detected
          {
           digitalWrite(buzzerPin,LOW);
           digitalWrite(7,  LOW);   
           delay(1000);
                        }

 Serial.print("Analog  reading = "); 
 Serial.println(fR); // the raw analog reading delay(1000); 
  delay(500);
}

Downloadable files

Pseudo Code

This is the Pseudo code for the project which shows how the project is supposed to be implemented. It is gives the user a step by step idea on how the project works.

Pseudo Code

Flowchart

This is the flowchart for the project and gives a general idea on what the Home Safety System should do and how it performs

Flowchart

Pseudo Code

This is the Pseudo code for the project which shows how the project is supposed to be implemented. It is gives the user a step by step idea on how the project works.

Pseudo Code

Documentation

EAGLE schematic

This is the EAGLE schematic for the circuit which shows h=all the proper connections of each component to the Arduino Uno

EAGLE schematic

This is the EAGLE schematic for the circuit which shows h=all the proper connections of each component to the Arduino Uno

EAGLE schematic

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jwander

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