Ok, here is the problem.

Projects Programming
13

In response to the PM that the OP sent me, saying:

My ping sensor is located on pin number 7. I don't know how to address the sensor other than referring to the pin it is connected to. This is where my issue is. This is the only problem I have. This is why I am having trouble creating a proper function.

First, look on the playground - Arduino Playground - HomePage - which has a lot of information, including a new library for using ping sensors.

The ping sensors don't provide a output that can be read directly. They are called ping sensors because you send out a ping, and see how long it takes for the echo to come back, just like a sonar. That is what this code does:

  long duration, inches;

// Set the pin for output
  pinMode(pingPing, OUTPUT);

// Send out a ping
  digitalWrite(pingPing, LOW);
  delayMicroseconds(2);
  digitalWrite(pingPing, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPing, LOW);

// Set the pin for input
  pinMode(pingPing, INPUT);

// Wait for the echo to return, store the result in duration.
  duration = pulseIn(pingPing, HIGH);

See http://arduino.cc/en/Reference/PulseIn for details on pulseIn().

long microsecondsToInches(long microseconds)
{
  return microseconds / 74 / 2;
}

This function takes the duration passed to it, and returns a number that represents the distance, in inches, between the sensor, and whatever the ping reflected back from.

AWOL, in the previous post, has provided a function that you can add to your sketch, to replace the inline ping code. If you add it, you can incorporate it into your robotRight() function, something like:

void robotRight()
{ 
  if (microsecondsToInches(pingRange(pingPing)) < 10)
  { 
    delay(500); 
    myservoA.write(90);
    delay(2000);
  } 
  else
  {
    myservoA.write(0);
  }
}

Hopefully this will help you. If not, please stick to using the forum, as it can help others too.