katarinak998
Published

Alarm and LED system control

Prototype of application for house alarm system, contained by Gas and Ultrasonic sensor, and LED lights control

IntermediateFull instructions provided1,040
Alarm and LED system control

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
Breadboard (generic)
Breadboard (generic)
×1
LED (generic)
LED (generic)
×1
Ultrasonic Sensor - HC-SR04 (Generic)
Ultrasonic Sensor - HC-SR04 (Generic)
×1
Grove - Gas Sensor(MQ2)
Seeed Studio Grove - Gas Sensor(MQ2)
×1
Resistor 220 ohm
Resistor 220 ohm
×1
Buzzer
Buzzer
×1

Software apps and online services

Arduino IDE
Arduino IDE
Visual Studio 2017
Microsoft Visual Studio 2017

Story

Read more

Schematics

Ultrasonic sensor and Arduino Uno

Ultrasonic sensors are supposed to be in front of the door or windows and if something occurs and ultrasonic sensor measure distance less than reference distance, the buzzer will make a sound.

MQ Gas Sensor and Arduino Uno

They are commonly used to detect toxic or explosive gasses and measure gas concentration. Gas sensors are employed in factories and manufacturing facilities to identify gas leaks, and to detect smoke and carbon monoxide in homes.

LED diode wiring

Buzzer wiring

Buzzer will make a sound when ultrasonic or gas sensor measures values that vary from reference values.

Code

Arduino Code

Arduino
#define echoPin 2 // pin D2 echo pin senzora udaljenosti 
#define trigPin 3 // pin D3 trig pin senzora udaljenosti 

int gas;

long duration; // varijabla za trajanje zvučnog signala
int distance; // varijabla za mjerenje udaljenosti
bool alarm = false;



const int buzzer = 9; //buzzer spojen na arduino pin 9

bool osoba= false;
bool dim=false;

bool gasSystem=false;

const int gasPin = A0; //GAS sensor output pin to Arduino analog A0 pin

void setup()    
{    
      
  Serial.begin(9600);    
  pinMode(13, OUTPUT);    // izlazni pin spojenih ledica

  pinMode(trigPin, OUTPUT); //izlazni pin senzora udaljenosti
  pinMode(echoPin, INPUT);  //ulazni pin senzora udaljenosti

  pinMode(buzzer, OUTPUT); // buzzer pin 9 je output

}    
    
void loop()    
{   
  
  Provjera_Komunikacije();
  Provjera_Alarma();
  Provjera_Alarma2();
}  

void Provjera_Alarma() {
  
 if (alarm == true)
 { 
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = duration * 0.034 / 2; // Speed of sound wave divided by 2 (go and back)
  
  
Provjera_Komunikacije();

  if(distance < 20){
   
    osoba=true;
    }
    if(osoba == true){

        Serial.write("1");
        tone(buzzer,500);
        delay(800);
        
         
      
         noTone(buzzer);
      }
    }
  }
      
void Provjera_Komunikacije(){
  
  if(Serial.available())
    
  {    
  char  data1=Serial.read();    
    
  if (data1 == 'G')

  {
    alarm = true;
  }

   else if (data1 == 'H')
  {
    alarm = false;
    osoba=false;
   }       
      
    
  switch(data1)    
  {    
    case 'O':digitalWrite(13, HIGH);    
    break;    
    case 'F':digitalWrite(13, LOW);    
    break;  
  }

 if (data1 == 'I')
  {
    gasSystem = true;
    }

   else if (data1 == 'J')
  {
     gasSystem = false;
     dim=false;
    }      
  } 
  }

void Provjera_Alarma2(){
  if (gasSystem==true){
    gas=analogRead(gasPin);

    Provjera_Komunikacije();

   if(gas > 400){

    dim=true;
}

if (dim== true){
  Serial.print('2');
  tone(buzzer,1500);
  delay(400);
  noTone(buzzer);
  
              }
           }
   }

C# code

C#
In the C # application, which is available to the client, by pressing the ON button under the heading ALARM SYSTEM, the client turns on the alarm system and the ultrasonic sensor constantly measures the distance and sends it to the Arduino. If it has measured a certain distance at which we know someone is in the room, the Arduino sends the information to the buzzer and it advertises. On the OFF button, the client has the option to turn off the alarm system or buzzer.
The smoke detection system works in the same way. By pressing the ON button below the GAS SYSTEM heading, the smoke sensor measures air quality and sends it to the Arduino. If the air quality is out of range, an alarm or buzzer is activated. On the OFF button, turn off both the system and the buzzer if it is activated.
The LED system works by pressing the ON button below the LED SYSTEM header to turn on the LEDs and they are on until you press the OFF button.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;

namespace Project_RS

{
    public partial class Form1 : Form
    {
        public SerialPort myport;
        

        public Form1()
        {
            InitializeComponent();
            
            
            
        }

        

        private void button1_Click(object sender, EventArgs e)
        {
            button1.BackColor = Color.Green;
            button2.BackColor = Color.White;
            myport = new SerialPort();
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("O");
            myport.Close();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            button1.BackColor = Color.White;
            button2.BackColor = Color.Red;
            myport = new SerialPort();
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("F");
            myport.Close();
        }

        private void button3_Click(object sender, EventArgs e)
        {

            button3.BackColor = Color.Green;
            button4.BackColor = Color.White;

            myport = new SerialPort("COM7",9600,Parity.None,8,StopBits.One);
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("G");
            myport.Close();





            
           
        }

        private void button4_Click(object sender, EventArgs e)
        {

            button3.BackColor = Color.White;
            button4.BackColor = Color.Red;
            myport = new SerialPort();
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("H");
            myport.Close();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        

        private void button5_Click(object sender, EventArgs e)
        {
            button5.BackColor = Color.Green;
            button6.BackColor = Color.White;
            myport = new SerialPort();
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("I");
            myport.Close();
        }

        private void button6_Click(object sender, EventArgs e)
        {
            button6.BackColor = Color.Red;
            button5.BackColor = Color.White;
            myport = new SerialPort();
            myport.BaudRate = 9600;
            myport.PortName = "COM7";
            myport.Open();
            myport.WriteLine("J");
            myport.Close();
        }

        public void button7_Click(object sender, EventArgs e)
        {
            
        }

       public void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            serialPort1.Open();

            MessageBox.Show(serialPort1.ReadLine());
        }

        private void button7_Click_1(object sender, EventArgs e)
        {

        }
    }
}

Credits

katarinak998
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