Construisez votre Radar avec Arduino

// Includes the Servo library
#include <Servo.h>. 
// Defines Tirg and Echo pins of the Ultrasonic Sensor
const int trigPin = 10;
const int echoPin = 11;
const int pin2=2;//green led
const int pin3=3; //led -red
// Variables for the duration and the distance
long duration;
int distance;
Servo myServo; // Creates a servo object for controlling the servo motor
void setup() {
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT);// Sets the echoPin as an Input
  pinMode(pin2, OUTPUT);
  pinMode(pin3, OUTPUT);
  Serial.begin(9600);
  myServo.attach(12); // Defines on which pin is the servo motor attached
}
void loop() {
  // 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
   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
  if (distance <50){digitalWrite(pin2, HIGH);delay(100);digitalWrite(pin2, LOW);}else {digitalWrite(pin3, HIGH);delay(100);digitalWrite(pin3, LOW);}}
  // Repeats the previous lines from 165 to 15 degrees
  for(int i=165;i>15;i--){  
  myServo.write(i);
 
  distance = calculateDistance();
  Serial.print(i);
  delay(30);
  Serial.print(",");
  delay(30);
  Serial.print(distance);
  delay(30);
  Serial.print(".");
  if (distance <50){digitalWrite(pin2, HIGH);delay(100);digitalWrite(pin2, LOW);}else {digitalWrite(pin3, HIGH);delay(100);digitalWrite(pin3, LOW);}
  }
}
// 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;
 }

import processing.serial.*; // imports library for serial communication
import java.awt.event.KeyEvent; // imports library for reading the data from the serial port
import java.io.IOException;
Serial myPort; // defines Object Serial
// defubes variables
String angle="";
String distance="";
String data="";
String noObject;
float pixsDistance;
int A, D;
int index1=0;
int index2=0;
int i;
void setup() {
  
 size (1340, 700); // ***CHANGE THIS TO YOUR SCREEN RESOLUTION***
 smooth();
 
  myPort = new Serial(this,"COM7", 9600); // starts the serial communication
  myPort.bufferUntil('.'); // reads the data from the serial port up to the character '.'. So actually it reads this: angle,distance.
  
}
//-------------------------------------------------------
void draw() {
  background(0);
  // calls the functions for drawing the radar
    drawRadar(); 
    drawLine();
drawObject();
fill(224,255,255);
drawText();
for (i=0;i<1340;i+=20){
  
  strokeWeight(1);
  stroke(155,155,13,50);
line(330,i,1010,i);
}for (i=0;i<700;i+=20){
    strokeWeight(1);
  stroke(155,155,13,50);
line(330+i,0,330+i,700);
}
  fill(242,152,31,200); // green color
  
  
}
//------------------------------------------------------
void serialEvent (Serial myPort) { // starts reading data from the Serial Port
  // reads the data from the Serial Port up to the character '.' and puts it into the String variable "data".
  data = myPort.readStringUntil('.');
  data = data.substring(0,data.length()-1);
  
  index1 = data.indexOf(","); // find the character ',' and puts it into the variable "index1"
  angle= data.substring(0, index1); // read the data from position "0" to position of the variable index1 or thats the value of the angle the Arduino Board sent into the Serial Port
  distance= data.substring(index1+1, data.length()); // read the data from position "index1" to the end of the data pr thats the value of the distance
  
  // converts the String variables into Integer
  A = int(angle);
  D = int(distance);if(D<50){
}
}
//-------------------------------------------------------
void drawRadar() {
 
   // moves the starting coordinats to new location
  fill(242,152,31,200);
    noStroke();
      ellipse(670,350,100,100);
      fill(242,152,31,175);
    noStroke();
        ellipse(670,350,200,200);
        fill(242,152,31,150);
    noStroke();
    ellipse(670,350,300,300);
    fill(242,152,31,100);
    noStroke();
    ellipse(670,350,400,400);
    fill(242,152,31,75);
    noStroke();
    ellipse(670,350,500,500);
     fill(190);
  textSize(20);
  
  text("50cm",670,100);
  text("40cm",670,150);
  text("30cm",670,200);
  text("20cm",670,250);
  text("10cm",670,300);
  textSize(40);
}
//-------------------------------------------------------
    void drawLine() {
      
  pushMatrix();
  strokeWeight(3);
  stroke(242,200,31,255);
  translate(width/2,height/2); // moves the starting coordinats to new location
  line(0,0,(255)*cos(radians(A)),-(255)*sin(radians(A)));// draws the line according to the angle
  fill(0);
  ellipse(0,0,30,30);
  popMatrix();
}
//--------------------------------------------------------
void drawObject() {
  
  pushMatrix();
  translate(width/2,height/2); // moves the starting coordinats to new location
  noStroke(); // red color
  pixsDistance = D*5; // covers the distance from the sensor from cm to pixels
  // limiting the range to 40 cms
  if(D<50){
   
    // draws the object according to the angle and the distance
    fill(255,20,20);
  ellipse(pixsDistance*cos(radians(A)),-pixsDistance*sin(radians(A)),20,20);
      strokeWeight(1);
      stroke(55,150,200,200);
  noFill();
  rectMode(CENTER);
  rect(pixsDistance*cos(radians(A)),-pixsDistance*sin(radians(A)),25,25);
  }
  popMatrix();
}
//-----------------------------------------------------------------------------------
//-----------------------------------------------------------------------------------
void drawText() { // draws the texts on the screen
  
  pushMatrix();
  if(D>40) {
  noObject = "Out of Range";
  }
  else {
      noObject = "In Range"; 
  }
  
  textSize(20);
  text("Object: " + noObject, width*0.81, height*0.1);
  text("Angle: " + A +" °", width*0.81, height*0.15);
  text("Distance: ", width*0.81, height*0.2);
  if(D<50) {
  text("        " + D +" cm", width*0.84, height*0.2);
  }
  strokeWeight(4);
  stroke(255,165,0,255);
  noFill();
 rectMode(RADIUS);
  rect(width*0.87, height*0.15,170,100);
  rect(width*0.87, height*0.15,140,80);
  popMatrix(); 
}