rexhepmustafovski
Published © GPL3+

Arduino Radar with Simulink

Simulink model development and integration with Arduino Mega 2560 for short-range radar detection system management.

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Arduino Radar with Simulink

Things used in this project

Hardware components

Arduino Mega 2560
Arduino Mega 2560
×1
SG90 Micro-servo motor
SG90 Micro-servo motor
×1
Ultrasonic Sensor - HC-SR04 (Generic)
Ultrasonic Sensor - HC-SR04 (Generic)
×1
Perma-Proto Breadboard Half Size
Perma-Proto Breadboard Half Size
×1
USB-A to B Cable
USB-A to B Cable
×1
Amazon Web Services Holder for Ultrasonic Sensor HC-SR04
×1

Software apps and online services

MATLAB
MATLAB
MATLAB Simulink
Processing
The Processing Foundation Processing

Story

Read more

Schematics

SCHEMATICS

Arduino Mega 2560 Sketch of connecting the components.

SCHEMATICS

Arduino Mega 2560 Sketch of connecting the components

Code

Simulink model in Matlab

Scheme
Appearance of the model in the Simulink simulation tool.
No preview (download only).

Processing code

C/C++
Copy and paste the code in Processing.
/*   Arduino Radar Project
 *
 *   Updated version. Fits any screen resolution!
 *   Just change the values in the size() function,
 *   with your screen resolution.
 *      
 *  by Dejan Nedelkovski, updated by Rexhep Mustafovski
 *  
 */
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;
float Razmer;  // 
int iAngle, iDistance;
int index1=0;
int index2=0;
int pravec=1;
PFont orcFont;
void setup() {
  
 
 fullScreen();   //  
 
 Razmer = (height-height*0.21)*0.025; // 
 
 smooth();
 myPort = new Serial(this,"COM3", 115200); // starts the serial communication
 myPort.bufferUntil('.'); // reads the data from the serial port up to the character '.'. So actually it reads this: angle,distance.
 orcFont = loadFont("OCRAExtended-30.vlw");
  
}
void draw() {
  
  fill(98,245,31);
  textFont(orcFont);
  // simulating motion blur and slow fade of the moving line
  noStroke();
  fill(0,5); 
  rect(0, 0, width, height-height*0.065); 
  
  fill(98,245,31); // green color
  // calls the functions for drawing the radar
  drawRadar(); 
  drawLine();
  drawObject();
  drawText();
  
}
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= trim(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= trim(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
  // new updated trimed data
    
  // converts the String variables into Integer
  iAngle = int(angle);
  iDistance = int(distance);
}
void drawRadar() {
  pushMatrix();
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  noFill();
  strokeWeight(2);
  stroke(98,245,31);
  // draws the arc lines
 
  arc(0,0,2*40*Razmer,2*40*Razmer,PI,TWO_PI);     //      New updated formulas
  arc(0,0,2*30*Razmer,2*30*Razmer,PI,TWO_PI);
  arc(0,0,2*20*Razmer,2*20*Razmer,PI,TWO_PI);
  arc(0,0,2*10*Razmer,2*10*Razmer,PI,TWO_PI);
  
  
  // draws the angle lines
  line(-width/2,0,width/2,0);
  line(0,0,(-width/2)*cos(radians(30)),(-width/2)*sin(radians(30)));
  line(0,0,(-width/2)*cos(radians(60)),(-width/2)*sin(radians(60)));
  line(0,0,(-width/2)*cos(radians(90)),(-width/2)*sin(radians(90)));
  line(0,0,(-width/2)*cos(radians(120)),(-width/2)*sin(radians(120)));
  line(0,0,(-width/2)*cos(radians(150)),(-width/2)*sin(radians(150)));
  line((-width/2)*cos(radians(30)),0,width/2,0);
  popMatrix();
}
void drawObject() {
  pushMatrix();
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  strokeWeight(9);
  stroke(255,10,10); // red color
 
  pixsDistance = iDistance*Razmer; // converts the distance from the sensor from cm to pixels 
  // limiting the range to 40 cms
  if(iDistance<40){
    // draws the object according to the angle and the distance

  line(pixsDistance*cos(radians(iAngle)),-pixsDistance*sin(radians(iAngle)),40*Razmer*cos(radians(iAngle)),-40*Razmer*sin(radians(iAngle)));  // new updated line 

  popMatrix();
}
void drawLine() {
  pushMatrix();
  strokeWeight(9);
  stroke(30,250,60);
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  line(0,0,40*Razmer*cos(radians(iAngle)),-40*Razmer*sin(radians(iAngle))); // new updated line
  popMatrix();
}
void drawText() { // draws the texts on the screen
  
  pushMatrix();
  if(iDistance>40) {
  noObject = "Out of Range";
  }
  else {
  noObject = "In Range";
  }
  fill(0,0,0);
  noStroke();
  rect(0, height-height*0.0648, width, height);
  fill(98,245,31);
  textSize(25);
  
  text("10cm",width/2+7*Razmer,height-height*0.0833);
  text("20cm",width/2+17*Razmer,height-height*0.0833);
  text("30cm",width/2+27*Razmer,height-height*0.0833);
  text("40cm",width/2+37*Razmer,height-height*0.0833);
  
  textSize(40);
  text("Object: " + noObject, width-width*0.875, height-height*0.0277);
  text("Angle: " + iAngle +" ", width-width*0.48, height-height*0.0277);
  text("Distance: ", width-width*0.26, height-height*0.0277);
  if(iDistance<40) {
  text("        " + iDistance +" cm", width-width*0.225, height-height*0.0277);
  }
  textSize(25);
  fill(98,245,60);
  translate((width-width*0.4994)+width/2*cos(radians(30)),(height-height*0.0907)-width/2*sin(radians(30)));
  rotate(-radians(-60));
  text("30",0,0);
  resetMatrix();
  translate((width-width*0.503)+width/2*cos(radians(60)),(height-height*0.0888)-width/2*sin(radians(60)));
  rotate(-radians(-30));
  text("60",0,0);
  resetMatrix();
  translate((width-width*0.507)+width/2*cos(radians(90)),(height-height*0.0833)-width/2*sin(radians(90)));
  rotate(radians(0));
  text("90",0,0);
  resetMatrix();
  translate(width-width*0.513+width/2*cos(radians(120)),(height-height*0.07129)-width/2*sin(radians(120)));
  rotate(radians(-30));
  text("120",0,0);
  resetMatrix();
  translate((width-width*0.5104)+width/2*cos(radians(150)),(height-height*0.0574)-width/2*sin(radians(150)));
  rotate(radians(-60));
  text("150",0,0);
  popMatrix(); 
}

Credits

rexhepmustafovski

rexhepmustafovski

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