Open Source Flipper Zero, Thread, Matter, and Zigbee on ESP32, Arduino go Zephyr, and more!

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Lufs1

About the project

This project discusses the development of a Radar system, characterized by a security system and having specific properties, presents one of the current challenges in electronics.

Project info

Difficulty: Moderate

Platforms: Arduino

Estimated time: 3 weeks

License: GNU General Public License, version 3 or later (GPL3+)

Story

The work presented in this project aimed to achieve an Arduino Radar system characterized by a security system. Radar is normally used to determine the distance and position of an object. We were particularly interested in programming and reading distances and detection angles of objects to convert data into visual information.

We have acquired several performances from our project. It is characterized a sweet functionality to detect objects in a given interval. The screen clearly displays the information with sufficient time for the user to read it. This project could be useful for object avoidance / detection applications. In addition it could easily be extended and used in all systems that could be useful and beneficial in most areas.

Code

// Includes the Ser  vo library
#include <Servo.h>. 
#include <LiquidCrystal.h>
// Defines Tirg and Echo pins of the Ultrasonic Sensor
const int trigPin = 10;
const int echoPin = 11;
const int buzzer = 8;
const int ledr=9;
const int ledv=13;
int ldr=A0;//Set A0(Analog Input) for LDR.
int value=0;
int ledw=22;
// Variables for the duration and the distance
long duration;
int distance , distances=40;
Servo myServo; // Creates a servo object for controlling the servo motor
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
void setup() {
  lcd.begin(16,2); 
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input
  Serial.begin(9600);
  myServo.attach(12); // Defines on which pin is the servo motor attached
  pinMode(ledr,OUTPUT);
  pinMode(ledv,OUTPUT);
  pinMode(ledw,OUTPUT);
}
void loop() {
  value=analogRead(ldr);//Reads the Value of LDR(light).
Serial.println("LDR value is :");//Prints the value of LDR to Serial Monitor.
Serial.println(value);
if(value<500)
{
    digitalWrite(ledw,HIGH);//Makes the LED glow in Dark.
  }
  else
  {
    digitalWrite(ledw,LOW);//Turns the LED OFF in Light.
  }

  // rotates the servo motor from 15 to 165 degrees
  for(int i=15;i<=165;i++){  
  myServo.write(i);
  delay(30);
  distance = calculateDistance();// Calls a function for calculating the distance measured by the Ultrasonic sensor for each degree
  digitalWrite(ledr,LOW);
  digitalWrite(ledv,HIGH);
  if(distance<=distances){
    tone(buzzer, 10);
    delay(700);
    noTone(buzzer);
    digitalWrite(ledr,HIGH);
  digitalWrite(ledv,LOW);
    lcd.setCursor(0,0); // positionner le cursor a 0,0
lcd.print("Distance: "); // Printe "Distance" sur LCD
lcd.print(distance); // Printe la valeur Obtenue sur LCD
lcd.print(" cm "); // Printe l'unité sur LCD
delay(10);
lcd.setCursor(0,1);
lcd.print("Angle : ");
lcd.print(i);
lcd.print(" deg ");
delay(2000);
  }
  Serial.print(i); // Sends the current degree into the Serial Port
  Serial.print(","); // Sends addition character right next to the previous value needed later in the Processing IDE for indexing
  Serial.print(distance); // Sends the distance value into the Serial Port
  Serial.print("."); // Sends addition character right next to the previous value needed later in the Processing IDE for indexing
  }
  // Repeats the previous lines from 165 to 15 degrees
  for(int i=165;i>15;i--){  
  myServo.write(i);
  delay(30);
  distance = calculateDistance();
    digitalWrite(ledr,LOW);
  digitalWrite(ledv,HIGH);
if(distance<=distances){
    tone(buzzer, 10);
    delay(700);
    noTone(buzzer);
    digitalWrite(ledr,HIGH);
  digitalWrite(ledv,LOW);
    lcd.setCursor(0,0); // positionner le cursor a 0,0
lcd.print("Distance: "); // Printe "Distance" sur LCD
lcd.print(distance); // Printe la valeur Obtenue sur LCD
lcd.print(" cm "); // Printe l'unité sur LCD
delay(10);
lcd.setCursor(0,1);
lcd.print("Angle : ");
lcd.print(i);
lcd.print(" deg ");
delay(2000);
  }
  Serial.print(i);
  Serial.print(",");
  Serial.print(distance);
  Serial.print(".");
  }
}
// Function for calculating the distance measured by the Ultrasonic sensor
int calculateDistance(){ 
  
  digitalWrite(trigPin, LOW); 
  delayMicroseconds(2);
  // Sets the trigPin on HIGH state for 10 micro seconds
  digitalWrite(trigPin, HIGH); 
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH); // Reads the echoPin, returns the sound wave travel time in microseconds
  distance= duration*0.034/2;
  return distance;
}

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HASAN_123

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Shop

Project Hub

Video

Blog

Shop home

3D printing

Single Board Computers

Development kits

Sensors

Internet of things

Robotics

Accessories

Product of the Week

Electromaker Educator

The Electromaker Show

The Electromaker Podcast

Lufs1

About the project

Project info

Story

Code

Credits

HASAN_123

Leave your feedback...

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