Control an LED using an array

asbsgs_array_ex4.ino

/*
 * Control an LED using an array, like in example 3, but the
 * pattern is configurable.
 * 
 * Create a pattern with LED on and off information in one array, 
 * and on/off durations in a second array.
 * 
 * 
 */

const int ledPin             = 7;
const int totalStates        = 10;
int ledState[totalStates]; // undefined, we'll ask the user for input
int ledDuration[totalStates] = {200,400,500,100,200,50, 50, 500, 500 };

void setup() {  
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB
  }

  for (int i = 0; i < totalStates; i++)
   {
    Serial.print("Please type 1 or 0 for pattern step ");
    Serial.print(i);
    Serial.print(" out of ");
    Serial.print(totalStates - 1);
    Serial.print(" (default is 1): ");
    
    while (Serial.available()==0)
    {
    }
    
    char userInput = Serial.read();
    if (userInput == '1') 
      ledState[i] = 1;     
    else if (userInput == '0') 
      ledState[i] = 0;     
    else 
      ledState[i] = 1;     

    Serial.println(ledState[i]);
   }
   Serial.println("Thank you, now let's blink this LED using this pattern:");
   for (int i = 0; i < totalStates; i++)
   {
    Serial.print("Step ");
    Serial.print(i);
    Serial.print(" state is: ");
    Serial.print(ledState[i]);    
    Serial.print(" with duration ");
    Serial.println(ledDuration[i]);
   }
}

void loop() {
  for (int i = 0; i < totalStates; i++)
   {
    digitalWrite(ledPin,ledState[i]);
    delay(ledDuration[i]);
   }
}