Using an ultrasonic sensor to control motor to move in the forward and reverse direction

Projects Programming
3

int trig = 9;
int echo = 8;
int in1 = 7;
int in2 = 6;
int duration = 0;
int distance = 0;
void setup()
{
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
pinMode(in1, OUTPUT);
pinMode(in2, OUTPUT);
digitalWrite(in1, HIGH);
digitalWrite(in2, HIGH);
Serial.begin(9600);

}

void loop() {
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, HIGH);
delayMicroseconds(10);
digitalWrite(trig, LOW);
duration = pulseIn(echo, HIGH);
distance = duration*0.034/2;

Serial.print("Distance: ");
Serial.println(distance);
delay(1000);

if ( distance <=10 ) {
Serial.print(distance);

digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
Serial.println("cm MOTOR MOVES FORWARD");
delay(1000);
digitalWrite(in1, HIGH);
digitalWrite(in2, HIGH);

}
else {
Serial.print(distance);
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
Serial.println("cm MOTOR MOVES BACKWARDS");
delay(1000);
digitalWrite(in1, HIGH);
digitalWrite(in2, HIGH);
}
}