Motion Sensor Smoke Detector - MEGR 3171 Group 28

Safety is one of the main issues that the hearing-impaired community struggle with! There has not been any solution yet until now.

BeginnerFull instructions provided115

Motion Sensor Smoke Detector - MEGR 3171 Group 28

Things used in this project

Hardware components

Particle Photon 2

Breadboard (generic)

PIR Motion Sensor (generic)

Jumper wires (generic)

IR receiver (generic)

5 mm LED: Green

5 mm LED: Red

5 mm LED: Orange

USB-A to Micro-USB Cable

USB-A to USB Micro C

Handheld Lighter

Software apps and online services

Particle Build Web IDE

Particle Console

ThingSpeak API

Fritzing

YouTube Video

Story

The hearing-impaired community faces a number of complications when it comes to safety procedures. As most of you may know, when a fire is detected a fire alarm goes off and yes, it is loud and obnoxious, however that does not mean it is enough for those of the hearing-impaired community that face financial circumstances when it comes to hearing aids. Since a number of the hearing-impaired community members face such obstacle, we have made a IOT Project that not only flashes two LED lights every 5 seconds, but it also sends a direct message to your phone when such an action occurs. The project does in fact scan movement to ensure someone is in the home where the project is being used.

Here is the link to the live ThingSpeak graphs,

Infrared (IR) Receiver Sensor Set Up

PIR Motion Sensor Set Up

Both the Infrared (IR) Receiver Sensor & PIR Motion Sensor Set Up Together

Both the Infrared (IR) Receiver Sensor & PIR Motion Sensor Set Up While Testing

YouTube Video

Code

PIR Motion Sensor Photon Code

C/C++

This is the code that is used for the PIR motion sensor for this project. It first warms up the sensor and sends out a notification that the sensor is active to the user's phone. Then the code goes through a loop of checking if the motion sensor senses anything. If no motion is detected the code sends a value of 1 to the webhook. If motion is detected the code checks if the other photon's fire sensor detects fire. If the fire sensor detects fire the code acts as if no motion was detected to not act like a fire was a person and sends out a value of 1. If there is no fire detected then a value of 2 is sent to the webhook to indicate that motion was detected. Then the code checks for motion again.

	/* PIR sensor O/P pin */
int receivedinteger =0; //global int var
float receivedfloat = 0;

int inputPin = D2;
int ledPin = D6;
int pirState = LOW;
int val = 0; 
int ledout = D5;
int calibrateTime = 10000;

void myHandler(const char *event, const char *data)
{
    receivedinteger = String(data).toInt();
    
    receivedfloat = String(data).toFloat();
}


void setup() 
{
    pinMode(ledPin, OUTPUT );   
    pinMode(inputPin, INPUT);
    pinMode(ledout, OUTPUT);
    digitalWrite(ledout, LOW);
    Particle.subscribe("fire", myHandler);
	Particle.publish("push", "motion sensor is active");
}

void loop() {
    

 Serial.println(receivedinteger);  //using a global variable you can see it anywhere in your code
    Serial.println(receivedfloat);
    receivedfloat = receivedfloat*1.1;
    delay(500);


    if (calibrated())
    {
        readTheSensor();
        reportTheData();
    }  

}
void readTheSensor() {
    
        val = digitalRead(inputPin);
    }
bool calibrated()
    {
        return millis() - calibrateTime > 0;
    }
void reportTheData()
{
        if (val == HIGH)
        {
          
            pirState = HIGH;
            setLED( pirState );
            digitalWrite(ledout, HIGH);
            delay(5000);
            digitalWrite(ledout, LOW);
            delay(5000);
             if (receivedfloat = 2)
            {
                String data = String(1);
            }
            else
            {
                String data = String(2);
            }
            Particle.publish("motion", data, PRIVATE);
        }
        
        else 
        { 
            String data = String(1);
            Particle.publish("motion", data, PRIVATE);
            digitalWrite(ledout, LOW);
        pirState = LOW;
        setLED( pirState );
        delay(5000);
        }
    }
  
void setLED (int state)
    { 
        digitalWrite( ledPin, state );
    }

//void myHandler(const char *event, const char *data)
    //{
        //digitalWrite(ledout, HIGH);
        //delay(5000);
        //digitalWrite(ledout, LOW);
  //  }

Infrared (IR) Receiver Sensor Photon Code

C/C++

This code starts by sending out a notification to the user's phone stating that the fire sensor is active, and checking if the motion sensor detects motion. If the motion sensor detects motion. If motion is detected by the motion sensor then it will turn on an led connected to D6. Then the sensor starts checking for fire. If fire is detected the code sends out a number of "2" to the webhook and sends out a notification stating "Fire Fire Fire!" to the user's phone. If no fire was detected it will send out a value of "1" to the webhook. Then the code scans for fire again.

int receivedinteger =0; //global int var
float receivedfloat = 0; //global float var

int i = 0;
int sensor = D2;
int light = D6;
int val = 0;
int other = 0;


void myHandler(const char *event, const char *data)
{
    receivedinteger = String(data).toInt();
    
    receivedfloat = String(data).toFloat();
    digitalWrite(light, HIGH);
}
void setup() {
    pinMode( sensor, INPUT);
    pinMode( light, OUTPUT);
    digitalWrite(light, LOW);
    Serial.begin(9600);
    pinMode(D7, OUTPUT);
    Particle.subscribe("motion", myHandler);
    Particle.publish("push", "smoke detector is active");
}




void loop() {
 Serial.println(receivedinteger);  //using a global variable you can see it anywhere in your code
    Serial.println(receivedfloat);
    receivedfloat = receivedfloat*1.1;
    delay(500);
   
    digitalWrite(light,LOW);    
    val = digitalRead(sensor);
  if (receivedfloat = 2)
  {
      digitalWrite(light, HIGH);
  delay(5000);
  digitalWrite(light, LOW);
  }
  else
  {
     digitalWrite(light, LOW);
     delay(5000);
  }
    if (val == LOW)
    { 
        String data = String(1);
        Particle.publish("fire", data, PRIVATE);
       
        delay(5000);
    }
    
    else
    {
        String data = String(2);
        Particle.publish("fire", data, PRIVATE);
        Particle.publish("push", "FIRE FIRE FIRE!" );
        delay(5000);
    }

}