Smart security using mobile

Arduino code:

/* code started

#define trigPin = 9;

#define echoPin = 10;

#define camera = 8;

code created by Technical idEas (YT)

https://youtube.com/c/TechnicalidEas07

*/

const int trigPin = 9;

const int echoPin = 10;

// defines pins numbers camera.

const int camera = 8;

// defines variables

long duration;

int distance;

void setup() {

pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output

pinMode(echoPin, INPUT); // Sets the echoPin as an Input

pinMode(camera, OUTPUT); // Sets the camera as an Output

Serial.begin(9600); // Starts the serial communication

}

void loop() {

// Clears the trigPin

digitalWrite(trigPin, LOW);

delayMicroseconds(2);

// Sets the trigPin on HIGH state for 10 micro seconds

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

// Reads the echoPin, returns the sound wave travel time in microseconds

duration = pulseIn(echoPin, HIGH);

// Calculating the distance

distance= duration*0.034/2;

// Prints the distance on the Serial Monitor

Serial.print("Distance: ");

Serial.println(distance);

if(distance < 200){

   digitalWrite(8, LOW);

  }else{

     digitalWrite(8, HIGH);

    }

}