Fire and Smoke Alarm

This is an updated version of the fire alarm I made. it includes a gas sensor and an app for control

Oct 4, 2020

•

42580 views

•

14 respects

environmental sensing

fire

app

emergency

Components and supplies

Arduino UNO

5 mm LED: Red

HC-05 Bluetooth Module

Buzzer

5 mm LED: Green

Resistor 1k ohm

Resistor 221 ohm

IR receiver (generic)

Breadboard (generic)

Jumper wires (generic)

Resistor 10k ohm

Grove - Gas Sensor(MQ2)

Apps and platforms

Arduino IDE

MIT App Inventor 2

Project description

Code

The Code

arduino

1#define flamePin A0
2#define gasPin A1
3#define buzzer1 10
4#define
5  buzzer2 9
6#define greenLed 2
7#define redLed 3
8int flameVal;
9int gasVal;
10int
11  btSwitch=49;
12unsigned long curTime;
13void(* resetFunc) (void) = 0;
14
15void
16  setup() {
17  // put your setup code here, to run once:
18  Serial.begin(9600);
19
20  pinMode(buzzer1, OUTPUT);
21  pinMode(buzzer2, OUTPUT);
22  pinMode(greenLed,
23  OUTPUT);
24  pinMode(redLed, OUTPUT);
25  curTime=millis();
26}
27
28void loop()
29  {
30    // put your main code here, to run repeatedly:
31   if(Serial.available()
32  > 0){ // Checks whether data is comming from the serial port
33      btSwitch =
34  Serial.read(); // Reads the data from the serial port
35   }
36   if(btSwitch=='1'){digitalWrite(greenLed,HIGH);digitalWrite(redLed,LOW);}
37
38   else if(btSwitch=='0'){digitalWrite(redLed,HIGH);digitalWrite(greenLed,LOW);}
39
40   else if(btSwitch=='2'){resetFunc();}
41   
42   flameVal=analogRead(flamePin);
43
44   gasVal=analogRead(gasPin);
45   
46   if (flameVal<1000 && gasVal>159 && btSwitch=='1'){
47
48     buzzerCall();
49   }
50   else if(gasVal>159 && btSwitch=='1'){
51     buzzerCall();
52
53   }
54}
55
56void buzzerCall(){
57    digitalWrite(greenLed,LOW);
58    digitalWrite(redLed,HIGH);
59
60    tone(buzzer1, 5000);
61    delay(1000);
62    noTone(buzzer1);
63    tone(buzzer2,
64  1000);
65    digitalWrite(redLed,LOW);
66    delay(1000);
67    noTone(buzzer2);
68
69  }
70

#define flamePin A0
#define gasPin A1
#define buzzer1 10
#define
  buzzer2 9
#define greenLed 2
#define redLed 3
int flameVal;
int gasVal;
int
  btSwitch=49;
unsigned long curTime;
void(* resetFunc) (void) = 0;

void
  setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);

  pinMode(buzzer1, OUTPUT);
  pinMode(buzzer2, OUTPUT);
  pinMode(greenLed,
  OUTPUT);
  pinMode(redLed, OUTPUT);
  curTime=millis();
}

void loop()
  {
    // put your main code here, to run repeatedly:
   if(Serial.available()
  > 0){ // Checks whether data is comming from the serial port
      btSwitch =
  Serial.read(); // Reads the data from the serial port
   }
   if(btSwitch=='1'){digitalWrite(greenLed,HIGH);digitalWrite(redLed,LOW);}

   else if(btSwitch=='0'){digitalWrite(redLed,HIGH);digitalWrite(greenLed,LOW);}

   else if(btSwitch=='2'){resetFunc();}
   
   flameVal=analogRead(flamePin);

   gasVal=analogRead(gasPin);
   
   if (flameVal<1000 && gasVal>159 && btSwitch=='1'){

     buzzerCall();
   }
   else if(gasVal>159 && btSwitch=='1'){
     buzzerCall();

   }
}

void buzzerCall(){
    digitalWrite(greenLed,LOW);
    digitalWrite(redLed,HIGH);

    tone(buzzer1, 5000);
    delay(1000);
    noTone(buzzer1);
    tone(buzzer2,
  1000);
    digitalWrite(redLed,LOW);
    delay(1000);
    noTone(buzzer2);

  }

The Code

arduino

1#define flamePin A0
2#define gasPin A1
3#define buzzer1 10
4#define  buzzer2 9
5#define greenLed 2
6#define redLed 3
7int flameVal;
8int gasVal;
9int  btSwitch=49;
10unsigned long curTime;
11void(* resetFunc) (void) = 0;
12
13void  setup() {
14  // put your setup code here, to run once:
15  Serial.begin(9600);
16  pinMode(buzzer1, OUTPUT);
17  pinMode(buzzer2, OUTPUT);
18  pinMode(greenLed,  OUTPUT);
19  pinMode(redLed, OUTPUT);
20  curTime=millis();
21}
22
23void loop()  {
24    // put your main code here, to run repeatedly:
25   if(Serial.available()  > 0){ // Checks whether data is comming from the serial port
26      btSwitch =  Serial.read(); // Reads the data from the serial port
27   }
28   if(btSwitch=='1'){digitalWrite(greenLed,HIGH);digitalWrite(redLed,LOW);}
29   else if(btSwitch=='0'){digitalWrite(redLed,HIGH);digitalWrite(greenLed,LOW);}
30   else if(btSwitch=='2'){resetFunc();}
31   
32   flameVal=analogRead(flamePin);
33   gasVal=analogRead(gasPin);
34   
35   if (flameVal<1000 && gasVal>159 && btSwitch=='1'){
36     buzzerCall();
37   }
38   else if(gasVal>159 && btSwitch=='1'){
39     buzzerCall();
40   }
41}
42
43void buzzerCall(){
44    digitalWrite(greenLed,LOW);
45    digitalWrite(redLed,HIGH);
46    tone(buzzer1, 5000);
47    delay(1000);
48    noTone(buzzer1);
49    tone(buzzer2,  1000);
50    digitalWrite(redLed,LOW);
51    delay(1000);
52    noTone(buzzer2);
53  }
54

#define flamePin A0
#define gasPin A1
#define buzzer1 10
#define  buzzer2 9
#define greenLed 2
#define redLed 3
int flameVal;
int gasVal;
int  btSwitch=49;
unsigned long curTime;
void(* resetFunc) (void) = 0;

void  setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(buzzer1, OUTPUT);
  pinMode(buzzer2, OUTPUT);
  pinMode(greenLed,  OUTPUT);
  pinMode(redLed, OUTPUT);
  curTime=millis();
}

void loop()  {
    // put your main code here, to run repeatedly:
   if(Serial.available()  > 0){ // Checks whether data is comming from the serial port
      btSwitch =  Serial.read(); // Reads the data from the serial port
   }
   if(btSwitch=='1'){digitalWrite(greenLed,HIGH);digitalWrite(redLed,LOW);}
   else if(btSwitch=='0'){digitalWrite(redLed,HIGH);digitalWrite(greenLed,LOW);}
   else if(btSwitch=='2'){resetFunc();}
   
   flameVal=analogRead(flamePin);
   gasVal=analogRead(gasPin);
   
   if (flameVal<1000 && gasVal>159 && btSwitch=='1'){
     buzzerCall();
   }
   else if(gasVal>159 && btSwitch=='1'){
     buzzerCall();
   }
}

void buzzerCall(){
    digitalWrite(greenLed,LOW);
    digitalWrite(redLed,HIGH);
    tone(buzzer1, 5000);
    delay(1000);
    noTone(buzzer1);
    tone(buzzer2,  1000);
    digitalWrite(redLed,LOW);
    delay(1000);
    noTone(buzzer2);
  }

Downloadable files

The Circuit

I couldn't find a MQ 2 fritzing diagram so i used a MQ 9 instead which has a similar pin out. Don't forget to disconnect the Rx and TX pins from the Bluetooth module before uploading your code else you will have issues uploading your code

The Circuit

Documentation

The apk

Comments

Only logged in users can leave comments

8ebrarsbaser8

2 months ago

Hi Ayan Could you send me the complete code? I urgently need it for a school project. My email adress is: ebrarsbaser8@gmail.com Thank you very much!

christopheryau

9 months ago

Hi , I urgently need to contact you about project , can you please help me . Please email me , so I can contact you and I need your help urgently My email is 2005550christopher@oxford.edu.pa

christopheryau

9 months ago

Hi Ayan Could you send me the complete code? I need it for a school project. My email adress is: 2005550christopher@oxford.edu.pa Thank you very much!!

aliibabaa

10 months ago

Hi Ayan Could you send me the complete code? I need it for a school project. My email address is: aliyah.pane@students.ksba.ch Thank you very much!!

roydy

a year ago

Hi i found your project outstanding. it got me wondering on how can i create my own app and link it to the Arduino project?. my email roydyrich24@gmail.com thanks

nzy0717

a year ago

Hi Ayan, Could you send the complete code to me? Thank you so much! My email address is zniu0717@gmail.com

Anonymous user

2 years ago

Hey Ayan, Is there anyway u can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is shitaanshus27@gmail.com. Thank You

Anonymous user

2 years ago

Hello fellow programmer, I would like to know if you have the possibility of sending me the complete code of the fire alarm system

Anonymous user

2 years ago

Is there anyway to send me the codes?? Please bro This is my email: xibw999@gmail.com Thank you very much!!

Anonymous user

2 years ago

Hey Ayan Can you tell me the steps regarding how to make my own fire alarm app

xliang2021q

2 years ago

Fire alarm is neccessary and It's a good idea to use HC 05 bluetooth module to turn on and off the device,I will follow your instructions to make another one,but my question is how does the bluetooth work with Uno because there's no bluetooth communication approach in your ino code,furthermore, I want to push alarm notification to my smart phone in long distance,maybe adding GSM module?much appreciate for any suggestion.

Anonymous user

2 years ago

Hey Ayan, Is there anyway u can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is manavdesai53@gmail.com. Thank You

ayanfeoluwaadekanye1

2 years ago

Sure

Anonymous user

2 years ago

Can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is yashpawar1500@gmail.com. Thank You

Anonymous user

2 years ago

Hey Ayan, Can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is yashpawar1500@gmail.com. Thank You

Anonymous user

2 years ago

Can you send me this project please ? lucasdaun@gmail.com

Anonymous user

2 years ago

U can send project code at my e-mail? Please My email is: fernydiaz62@gmail.com

Anonymous user

2 years ago

Hi , I urgently need to contact you about project , can you please help me . Please email me , so I can contact you and I need your help urgently My email is- meetgoraya67@gmail.com

Anonymous user

2 years ago

can u send project code at my e-mail? Please My email is: nursyahmina57@gmail.com THANK YOU SO MUCH :)

Anonymous user

2 years ago

how reliable is this MQ2 sensor? can it be used for commercial purposes like installing at home, cafe or offices etc?

Anonymous user

2 years ago

Hey Ayan, Is there anyway u can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is anothersideofhumam@gmail.com Thank you!

Anonymous user

2 years ago

can you send me the full code for this project. this is my email : aimanhaziqaiman25032002@gmail.com thank you

michealprosper

2 years ago

Please can you share the app code To my email abbamoses54@gmail.com

Anonymous user

2 years ago

Can you email me the project code? Please I can be reached at qayyumammar99@yahoo.com.

Anonymous user

3 years ago

Hello fellow programmer, I would like to know if you have the possibility of sending me the complete code of the fire alarm system

Anonymous user

3 years ago

Hey Ayan, Can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is yashpawar1500@gmail.com. Thank You

xliang2021q

3 years ago

Anonymous user

3 years ago

Hi , I urgently need to contact you about project , can you please help me . Please email me , so I can contact you and I need your help urgently My email is- meetgoraya67@gmail.com

syahmina22

3 years ago

can u send project code at my e-mail? Please My email is: nursyahmina57@gmail.com THANK YOU SO MUCH :)

Anonymous user

4 years ago

Can you send me this project please ? lucasdaun@gmail.com

azirn

4 years ago

Hi, I want to ask, is this code usable?

Anonymous user

4 years ago

Hey Ayan Can you tell me the steps regarding how to make my own fire alarm app

Anonymous user

4 years ago

Hey Ayan, Is there anyway u can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is shitaanshus27@gmail.com. Thank You

Anonymous user

4 years ago

Is there anyway to send me the codes?? Please bro This is my email: xibw999@gmail.com Thank you very much!!

Anonymous user

4 years ago

how reliable is this MQ2 sensor? can it be used for commercial purposes like installing at home, cafe or offices etc?

metaldroide666

4 years ago

U can send project code at my e-mail? Please My email is: fernydiaz62@gmail.com

manavdesai53

4 years ago

Hey Ayan, Is there anyway u can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is manavdesai53@gmail.com. Thank You

ayanfeoluwaadekanye1

2 years ago

Sure

Anonymous user

2 years ago

Can send me the code for this project, in regards to the MIT-APP INVENTOR? My email is yashpawar1500@gmail.com. Thank You

ayanfeoluwaadekanye1

3 Followers

•

6 Projects

Intro

Components and supplies

Apps and platforms

Project description

Code

Downloadable files

Documentation