Arduino Autonomous Car!

A small car that can avoid obstacles and drive itself!

Nov 28, 2017

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2054 views

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2 respects

environmental sensing

cars

robots

Devices & Components

Arduino Uno Rev3

LED (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

Solid V Wheel Kit

Jumper wires (generic)

Slide Switch

Servos (Tower Pro MG996R)

Breadboard (generic)

Hardware & Tools

Hot glue gun (generic)

Soldering iron (generic)

Software & Tools

Arduino IDE

Project description

Code

Autonomous Car Code

c_cpp

1#define trigPin 12
2#define echoPin 13
3
4int n; 
5int duration,   distance;
6
7String readString;
8
9#include <Servo.h> 
10Servo myservo1;   // create servo object to control servo 
11Servo myservo2;
12
13void setup()   {
14  Serial.begin(9600);
15  myservo1.attach(8); // assigns the servo to a pin
16   myservo2.attach(9);
17  pinMode(trigPin, OUTPUT);
18  pinMode(echoPin, INPUT);
19   pinMode(3, OUTPUT);
20}
21
22void loop() {
23  digitalWrite(trigPin, HIGH);
24   _delay_ms(500);
25  digitalWrite(trigPin, LOW);
26  duration = pulseIn(echoPin,   HIGH);
27  distance = (duration/2) / 29.1;
28        
29  if (distance < 40)   { // this is the distance which the rover has to stop
30    digitalWrite(3, HIGH);
31     myservo1.write(n); // controls the direction of the motors
32    myservo2.write(180-n);
33    delay(1000);  // how long the wheels spin
34   myservo1.write(n);
35   myservo2.write(90-n);
36    delay(500);
37}
38  else { // what the rover will do if it doen't sense anything
39     digitalWrite(3, LOW);
40    myservo1.write(180-n);
41    myservo2.write(n);

#define trigPin 12
#define echoPin 13

int n; 
int duration,   distance;

String readString;

#include <Servo.h> 
Servo myservo1;   // create servo object to control servo 
Servo myservo2;

void setup()   {
  Serial.begin(9600);
  myservo1.attach(8); // assigns the servo to a pin
   myservo2.attach(9);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
   pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(trigPin, HIGH);
   _delay_ms(500);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin,   HIGH);
  distance = (duration/2) / 29.1;
        
  if (distance < 40)   { // this is the distance which the rover has to stop
    digitalWrite(3, HIGH);
     myservo1.write(n); // controls the direction of the motors
    myservo2.write(180-n);
    delay(1000);  // how long the wheels spin
   myservo1.write(n);
   myservo2.write(90-n);
    delay(500);
}
  else { // what the rover will do if it doen't sense anything
     digitalWrite(3, LOW);
    myservo1.write(180-n);
    myservo2.write(n);

Autonomous Car Code

c_cpp

1#define trigPin 12
2#define echoPin 13
3
4int n; 
5int duration,  distance;
6
7String readString;
8
9#include <Servo.h> 
10Servo myservo1;  // create servo object to control servo 
11Servo myservo2;
12
13void setup()  {
14  Serial.begin(9600);
15  myservo1.attach(8); // assigns the servo to a pin
16  myservo2.attach(9);
17  pinMode(trigPin, OUTPUT);
18  pinMode(echoPin, INPUT);
19  pinMode(3, OUTPUT);
20}
21
22void loop() {
23  digitalWrite(trigPin, HIGH);
24  _delay_ms(500);
25  digitalWrite(trigPin, LOW);
26  duration = pulseIn(echoPin,  HIGH);
27  distance = (duration/2) / 29.1;
28        
29  if (distance < 40)  { // this is the distance which the rover has to stop
30    digitalWrite(3, HIGH);
31    myservo1.write(n); // controls the direction of the motors
32    myservo2.write(180-n);
33   delay(1000);  // how long the wheels spin
34   myservo1.write(n);
35   myservo2.write(90-n);
36   delay(500);
37}
38  else { // what the rover will do if it doen't sense anything
39    digitalWrite(3, LOW);
40    myservo1.write(180-n);
41    myservo2.write(n);

#define trigPin 12
#define echoPin 13

int n; 
int duration,  distance;

String readString;

#include <Servo.h> 
Servo myservo1;  // create servo object to control servo 
Servo myservo2;

void setup()  {
  Serial.begin(9600);
  myservo1.attach(8); // assigns the servo to a pin
  myservo2.attach(9);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(trigPin, HIGH);
  _delay_ms(500);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin,  HIGH);
  distance = (duration/2) / 29.1;
        
  if (distance < 40)  { // this is the distance which the rover has to stop
    digitalWrite(3, HIGH);
    myservo1.write(n); // controls the direction of the motors
    myservo2.write(180-n);
   delay(1000);  // how long the wheels spin
   myservo1.write(n);
   myservo2.write(90-n);
   delay(500);
}
  else { // what the rover will do if it doen't sense anything
    digitalWrite(3, LOW);
    myservo1.write(180-n);
    myservo2.write(n);

Downloadable files

Wiring Diagram

How to wire your Arduino circuit board and Servo Motors!

Wiring Diagram

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