wright_arduinofinal

#include <Servo.h>
Servo myservo;  // create servo object to control a servo

#define ServoM    12        //Connected to the servo motor.
#define In        8         //Pin connected to the IN button.
#define BarLow    180       //Low position of the barrier.
#define BarUp     -90        //Up position of the barrier.
#define trigPin 7            //TRING PIN 7
#define echoPin 6            //ECHO PIN 6


//================================================================

void setup(){
  myservo.attach(ServoM);          // attaches the servo.
Serial.begin (9600);
 
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(In, INPUT);             // set "IN" button pin to input
  digitalWrite(In, HIGH);         // Connect Pull-Up resistor.
  
  myservo.write(BarLow);          //Barrier in the low position
//  delay(15);
}



//================================================================
void loop(){
  
 

  long duration, distance;
  digitalWrite(trigPin, LOW); 
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
 
//================================================================
 
if(digitalRead(In)==0)
{
    myservo.write(BarLow);
  

    }
 
 
  if (distance <6) 
{ 
    myservo.write(BarUp);}

}



//================================================================