Resumen


Este es un proyecto muy interesante y 煤til. Puede detectar cualquier tipo de objeto en su rango con la ayuda de un sensor ultras贸nico. El servomotor ayuda a rotar el sensor ultras贸nico para cubrir casi todas las direcciones. Esta es una versi贸n port谩til del Arduino Radar porque tenemos una pantalla OLED de 0.96 pulgadas para visualizar los datos. Si alg煤n objeto detectado por el radar, mostrar谩 un s铆mbolo de alerta con un c铆rculo en una l铆nea y la distancia del objeto. Aparte de esto, podemos utilizar un software de procesamiento IDE que visualiza todos los datos en una PC. Si alg煤n objeto detectado por el radar, mostrar谩 una l铆nea roja en el software de procesamiento. El sensor ultras贸nico es muy 煤til en muchos proyectos electr贸nicos. Lo usamos en medici贸n de distancias y detecci贸n de objetos. Entonces, en este proyecto, hemos dise帽ado un radar port谩til que utiliza un sensor ultras贸nico, un servomotor y una pantalla OLED para detecci贸n y rango.

Componentes


  1. Microcontrolador compatible con Arduino Nano
  2. Placa de pruebas 400 puntos
  3. Servomotor SG90 180 grados 1.5Kg
  4. Sensor Ultrasonico HC-SR-04
  5. Sujetador para Sensor Ultrasonico
  6. Sujetador para Servo (Impresion 3D)
  7. Pantalla OLED 0.96 pulgadas


Diagrama de Conexion


PRIMERO COLOCAMOS EL ARDUINO NANO EN LA PROTOBOARD

LUEGO COLOCAMOS LA PANTALLA OLED EN LA MISMA

COLOCAMOS LAS LINEAS POSITIVAS Y NEGATIVAS EN LA PROTOBOARD

CONEXTAMOS LA PANTALLA OLED AL ARDUINO NANO

CONECTAMOS LAS ENTRADAS DEL SERVOMOTOR

CONECTAMOS EL SENSOR ULTRASONICO


Codigo Arduino


#include <SPI.h>
 #include <Wire.h>
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
 #include <Servo.h>
 #define Trig 8
 #define Echo 9
 Adafruit_SSD1306 display(-1);
 Servo Servo1;
 void setup()
 {
   // initialize with the I2C addr 0x3C
   display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
   pinMode(Trig, OUTPUT);
   pinMode(Echo, INPUT);
   Serial.begin(9600);
   Servo1.attach(11);
   delay(1000);
   Servo1.write(40);
   display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(WHITE);
   display.setCursor(20, 10);
   display.println("Arduino RADAR");
   display.display();
   delay(2000);
 }
 long distance, duration, Distance;
 void loop() {
 int i, j, k, l, m, n;  //Define Loop variables
 for (i = 10; i >= 0; i -= 2)         //loop for moving the line from centre left to top left
   {
     int servomap = map(i, 0, 10, 60, 40);   //map the servo values
     Distance = Distance_value();  //get the distance sensor value by calling the function
 // Serial Print for processing IDE 
Serial.print(servomap); // 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 > 40 )   //if object is out of range (no circle will be displayed on the line 
{   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 0, i, WHITE );    //draw a line   display.display();   
delay(100); 
} 
if (Distance >= 0 && Distance <= 40)  //if object is in range 
{  
 int xmap1 = map(Distance, 0, 40, 64, 0);    //map funtion for draw circle at exact location of the object   
int ymap1 = map(Distance, 0, 40, 32, i);   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 0, i, WHITE );    //draw line   
display.drawCircle(xmap1, ymap1, 3, WHITE);  //draw object location circle   
display.fillCircle(10, 30, 1, WHITE);    //object detection sign   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);  //object detection sign   
display.display();   
delay(100); 
}
 }
   for (j = 0; j <= 128; j += 4) //moving from left to right
   {
     int servomap = map(j, 0, 128, 61, 120);
     Distance = Distance_value();
 //Serial Print for Processing IDE 
Serial.print(servomap); // 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 > 40 ) 
{   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, j, 0, WHITE );   
display.display();   
delay(100); 
} 
else if (Distance >= 0 && Distance <= 40) 
{   
int xmap2 = map(Distance, 0, 40, 64, j);   
int ymap2 = map(Distance, 0, 40, 32, 0);   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, j, 0, WHITE );   
display.drawCircle(xmap2, ymap2, 3, WHITE);   
display.fillCircle(10, 30, 1, WHITE);   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);   
display.display();   
delay(100); 
}
 }
   for (k = 0; k <= 10 ; k += 2) //moving from top right to centre right
   {
     int servomap = map(k, 0, 10, 121, 140);
     Distance = Distance_value();
 //Serial Print for Processing IDE 
Serial.print(servomap); // 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 > 40 ) {   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 128, k, WHITE );   
display.display();   
delay(100); 
} 
else if (Distance >= 0 && Distance <= 40) 
{   
int xmap3 = map(Distance, 0, 40, 64, 128);   
int ymap3 = map(Distance, 0, 40, 32, k);  
 display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 128, k, WHITE );   
display.drawCircle(xmap3, ymap3, 3, WHITE);   
display.fillCircle(10, 30, 1, WHITE);   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);   
display.display();   
delay(100); 
}
 }
   for (l = 10; l >= 0 ; l -= 2) //reserve loops
   {
     int servomap = map(l, 10, 0, 140, 120);
     Distance = Distance_value();
 //Serial Print for Processing IDE 
Serial.print(servomap); // 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 > 40 ) {   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 128, l, WHITE );   
display.display();   
delay(100); 
} 
else if (Distance >= 0 && Distance <= 40) 
{   
int xmap3 = map(Distance, 0, 40, 64, 128);  
 int ymap3 = map(Distance, 0, 40, 32, l);   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 128, l, WHITE );  
 display.drawCircle(xmap3, ymap3, 3, WHITE);   
display.fillCircle(10, 30, 1, WHITE);   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);   
display.display();   
delay(100); 
}
 }
   for (m = 128; m >= 0; m -= 4)
   {
     int servomap = map(m, 128, 0, 121, 60);
     Distance = Distance_value();
 //Serial Print for Processing IDE 
Serial.print(servomap); // 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 > 40 ) {   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, m, 0, WHITE );   
display.display();   
delay(100); 
} 
else if (Distance >= 0 && Distance <= 40) 
{   
int xmap2 = map(Distance, 0, 40, 64, m);   
int ymap2 = map(Distance, 0, 40, 32, 0);   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, m, 0, WHITE );   
display.drawCircle(xmap2, ymap2, 3, WHITE);   
display.fillCircle(10, 30, 1, WHITE);   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);  
 display.display();   delay(100); }
 }
   for (n = 0; n <= 10; n += 2)
   {
     int servomap = map(n, 0, 10, 61, 40);
     Distance = Distance_value();
 //Serial Print for Processing IDE 
Serial.print(servomap); // 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 > 40 ) 
{   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 0, n, WHITE );   
display.display();   
delay(100); 
} 
else if (Distance >= 0 && Distance <= 40)
 {   
int xmap1 = map(Distance, 0, 40, 64, 0);   
int ymap1 = map(Distance, 0, 40, 32, n);   
display.clearDisplay();   
Servo1.write(servomap);   
display.drawLine(64, 32, 0, n, WHITE );   
display.drawCircle(xmap1, ymap1, 3, WHITE);   
display.fillCircle(10, 30, 1, WHITE);   
display.fillRoundRect(10, 20, 2, 8, 2, WHITE);   
display.display();   
delay(100); 
}
 }
 }
 int Distance_value()  //funtion to get the distance value
 {
   digitalWrite(Trig, LOW);
   delayMicroseconds(2);
   digitalWrite(Trig, HIGH);
   delayMicroseconds(10);
   digitalWrite(Trig, LOW);
   duration = pulseIn(Echo, HIGH);
   distance = (duration / 2) / 29.1;
   display.setTextSize(1);
   display.setTextColor(WHITE);
   display.setCursor(100, 25);
   display.println(distance);  //display distance value on oled display
   delay(15);
   display.display();
   return distance; //return the distance value
 }