Self Driving Car (Arduino+L298n Driver)

Arduino Car using L298N Driver and Ultrasonic Sensor HC-SR04

[@hewiweng99]

Awesome! I was planning on making a robot similar to this! For future extension, you could add extra sensors to let it drive with precision!

[@hysk0868]

WoW sooo good I loce it, kkep up the good work man

[@mangalladiestailor.8481]

Please gove the code also

[@techinteractive]

#include
UltraSonicDistanceSensor ultrasonic(A0,A1);
float distance;
// left motor
int leftMotorSpeedPin = 3;
int leftMotorForwardPin = 4;
int leftMotorBackwardPin = 5;
// right motor
int rightMotorSpeedPin = 11;
int rightMotorForwardPin = 12;
int rightMotorBackwardPin = 13;
void setup() {
pinMode(leftMotorSpeedPin, OUTPUT);
pinMode(leftMotorForwardPin, OUTPUT);
pinMode(leftMotorBackwardPin, OUTPUT);
pinMode(rightMotorSpeedPin, OUTPUT);
pinMode(rightMotorForwardPin, OUTPUT);
pinMode(rightMotorBackwardPin, OUTPUT);
Serial.begin(9600);
digitalWrite(leftMotorSpeedPin, HIGH);
digitalWrite(rightMotorSpeedPin, HIGH);

}
void loop() {
distance = ultrasonic.measureDistanceCm(); //Use 'CM' for centimeters or 'INC' for inches
Serial.println(distance);
if (distance > -1 && distance < 25) {
stop();
delay(1000);
goBackward();
delay(300);
stop();
delay(1000);

if(random(0, 2) == 0) {
goLeft();
} else {
goRight();
}

delay(500);
stop();
delay(700);
} else {
goForward();
}
}
void goForward() {
digitalWrite(leftMotorForwardPin, HIGH);
digitalWrite(leftMotorBackwardPin, LOW);
digitalWrite(rightMotorForwardPin, HIGH);
digitalWrite(rightMotorBackwardPin, LOW);
}
void goBackward() {
digitalWrite(leftMotorForwardPin, LOW);
digitalWrite(leftMotorBackwardPin, HIGH);
digitalWrite(rightMotorForwardPin, LOW);
digitalWrite(rightMotorBackwardPin, HIGH);
}
void stop() {
digitalWrite(leftMotorForwardPin, LOW);
digitalWrite(leftMotorBackwardPin, LOW);
digitalWrite(rightMotorForwardPin, LOW);
digitalWrite(rightMotorBackwardPin, LOW);
}
void goRight() {
digitalWrite(leftMotorForwardPin, HIGH);
digitalWrite(leftMotorBackwardPin, LOW);
digitalWrite(rightMotorForwardPin, LOW);
digitalWrite(rightMotorBackwardPin, LOW);
}
void goLeft() {
digitalWrite(leftMotorForwardPin, LOW);
digitalWrite(leftMotorBackwardPin, LOW);
digitalWrite(rightMotorForwardPin, HIGH);
digitalWrite(rightMotorBackwardPin, LOW);
}