//#include <SoftwareSerial.h>

  //int trigPin (A2);
  //int echoPin (A3); 

  const int redPin=8;
  const int greenPin=10;
  const int bluePin=A7;
  
  int buttonPin=A0;
  
  //long duration, cm;

  //SoftwareSerial mySerial(0, A1);

void setup() {
  mySerial.begin(4800);
  
  pinMode(redPin, OUTPUT);  
  pinMode(greenPin, OUTPUT);  
  pinMode(bluePin, OUTPUT); 
  pinMode(buttonPin, INPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {

  mySerial.println("Test...");

 // sonar();
  
  int buttonState;
  buttonState=digitalRead(buttonPin);
  mySerial.println(buttonState);

  if (buttonState == LOW){
    digitalWrite(redPin, HIGH);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150);
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150);
    digitalWrite(redPin, HIGH);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150);  
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150); 
    digitalWrite(redPin, HIGH);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150);
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
    delay(150); 
  }  
  else if (buttonState == HIGH){
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, HIGH);
    digitalWrite(bluePin, LOW);
  }
}

/*void sonar(){
// The sensor is triggered by a HIGH pulse of 10 or more microseconds.
  // Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
 
  // Read the signal from the sensor: a HIGH pulse whose
  // duration is the time (in microseconds) from the sending
  // of the ping to the reception of its echo off of an object.
  pinMode(echoPin, INPUT);
  duration = pulseIn(echoPin, HIGH);
 
  // Convert the time into a distance
  cm = (duration/2) / 29.1;     

/*Sound travels at 343 meters per second, which means it needs 29.155 microseconds per centimeter. So, we have to divide the duration by 29 and then by 2, 
because the sound has to travel the distance twice. It travels to the object and then back to the sensor.*/

 /* mySerial.print(cm);
  mySerial.print("cm");
  mySerial.println();
  
  delay(250);

}*/