simplest short-range radar+status lights!

1import processing.serial.*; 
2import java.awt.event.KeyEvent; 
3import  java.io.IOException;
4Serial myPort;
5String angle="";
6String distance="";
7String  data="";
8String noObject;
9float pixsDistance;
10int iAngle, iDistance;
11int  index1=0;
12int index2=0;
13PFont orcFont;
14
15void setup() {
16 size (1900,1200);
17  smooth();
18 myPort = new Serial(this,"COM6", 9600); 
19 myPort.bufferUntil('.');  
20}
21
22void draw() {
23  
24  fill(98,245,31);
25  noStroke();
26  fill(0,4);  
27  rect(0, 0, width, 1010); 
28  
29  drawRadar(); 
30  drawLine();
31  drawObject();
32  drawText();
33}
34
35void serialEvent (Serial myPort) { 
36  data = myPort.readStringUntil('.');
37  data = data.substring(0,data.length()-1);
38  
39  index1 = data.indexOf(",");  
40  angle= data.substring(0, index1);
41  distance= data.substring(index1+1,  data.length()); 
42  
43  iAngle = int(angle);
44  iDistance = int(distance);
45}
46
47void  drawRadar() {
48  pushMatrix();
49  translate(700,700); 
50  noFill();
51  strokeWeight(2);
52  stroke(255,245,255);
53  // draws the arc lines
54  arc(0,0,1800,1800,PI,TWO_PI);
55  arc(0,0,1400,1400,PI,TWO_PI);
56  arc(0,0,1000,1000,PI,TWO_PI);
57  arc(0,0,600,600,PI,TWO_PI);
58  
59  line(-960,0,960,0);
60  line(0,0,-960*cos(radians(30)),-960*sin(radians(30)));
61  line(0,0,-960*cos(radians(60)),-960*sin(radians(60)));
62  line(0,0,-960*cos(radians(90)),-960*sin(radians(90)));
63  line(0,0,-960*cos(radians(120)),-960*sin(radians(120)));
64  line(0,0,-960*cos(radians(150)),-960*sin(radians(150)));
65  line(-960*cos(radians(30)),0,960,0);
66  popMatrix();
67}
68void drawObject()  {
69  pushMatrix();
70  translate(700,700);
71  strokeWeight(9);
72  stroke(255,0,0);  
73  pixsDistance = iDistance*22.5;
74  if(iDistance<40)
75     line(pixsDistance*cos(radians(iAngle)),-pixsDistance*sin(radians(iAngle)),950*cos(radians(iAngle)),-950*sin(radians(iAngle)));
76  popMatrix();
77}
78void drawLine() {
79  pushMatrix();
80  strokeWeight(9);
81  stroke(30,10,250);
82  translate(700,700); 
83  line(0,0,950*cos(radians(iAngle)),-950*sin(radians(iAngle)));  
84  popMatrix();
85}
86
87void drawText() {
88  
89  pushMatrix();
90  fill(0,0,0);
91  noStroke();
92  rect(0, 1010, width, 600);
93  textSize(25);
94  fill(255,255,255);
95  translate(800,650);
96  rotate(-radians(-60));
97  text("30°",0,0);
98  resetMatrix();
99  translate(740,600);
100  rotate(-radians(-30));
101  text("60°",0,0);
102  resetMatrix();
103  translate(680,590);
104  rotate(radians(0));
105  text("90°",0,0);
106  resetMatrix();
107  translate(620,620);
108  rotate(radians(-30));
109  text("120°",0,0);
110  resetMatrix();
111  translate(590,680);
112  rotate(radians(-60));
113  text("150°",0,0);
114resetMatrix();
115  translate(50,650);
116  rotate(radians(0));
117  fill(5,0,0);
118  text("PoliArdo  team Serbia",2,5);
119    fill(255,255,255);
120  text("PoliArdo team Serbia",0,0);
121  popMatrix(); 
122}

1int trigPin = 10;
2int echoPin = 11;
3int green_led = 8;
4int red_led   = 9;
5int led_turnon_dist=101;
6long duration;
7int distance;
8
9void   setup() {
10  Serial.begin(9600);
11  pinMode(trigPin, OUTPUT); 
12  pinMode(echoPin,   INPUT);
13  pinMode(green_pin, OUTPUT);
14  pinMode(red_pin, OUTPUT);
15}
16
17void   loop() {
18 print_serial();
19}
20void print_serial(){
21  delay(30);
22  distance   = measures_the_distance();
23  if(distance<led_turnon_dist)
24  {
25    digitalWrite(green_pin,   HIGH);
26    digitalWrite(red_pin, LOW);
27    Serial.println(distance);
28  }
29   else
30  {
31    digitalWrite(green_pin, LOW);
32    digitalWrite(red_pin,   HIGH);
33    Serial.println(distance);    
34  }
35}
36int measures_the_distance(){   
37  digitalWrite(trigPin, LOW); 
38  delayMicroseconds(2);
39  digitalWrite(trigPin,   HIGH); 
40  delayMicroseconds(10);
41  digitalWrite(trigPin, LOW);
42  duration   = pulseIn(echoPin, HIGH); 
43  distance= duration*0.034/2;
44  return distance;
45}

1int trigPin = 10;
2int echoPin = 11;
3int green_led = 8;
4int red_led  = 9;
5int led_turnon_dist=101;
6long duration;
7int distance;
8
9void  setup() {
10  Serial.begin(9600);
11  pinMode(trigPin, OUTPUT); 
12  pinMode(echoPin,  INPUT);
13  pinMode(green_pin, OUTPUT);
14  pinMode(red_pin, OUTPUT);
15}
16
17void  loop() {
18 print_serial();
19}
20void print_serial(){
21  delay(30);
22  distance  = measures_the_distance();
23  if(distance<led_turnon_dist)
24  {
25    digitalWrite(green_pin,  HIGH);
26    digitalWrite(red_pin, LOW);
27    Serial.println(distance);
28  }
29  else
30  {
31    digitalWrite(green_pin, LOW);
32    digitalWrite(red_pin,  HIGH);
33    Serial.println(distance);    
34  }
35}
36int measures_the_distance(){  
37  digitalWrite(trigPin, LOW); 
38  delayMicroseconds(2);
39  digitalWrite(trigPin,  HIGH); 
40  delayMicroseconds(10);
41  digitalWrite(trigPin, LOW);
42  duration  = pulseIn(echoPin, HIGH); 
43  distance= duration*0.034/2;
44  return distance;
45}