//--------------------------------------------------
//  Example of a for() loop
//  - Used for doing something a number of times 
//  - Setup: 
//    Wire an LED from pin 7 thru a resistor to GND
//--------------------------------------------------

int ledPin = 7;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop()  {
//--- This is the for() loop:
  for(int i = 0; i < 5; i++) {
      digitalWrite(ledPin, HIGH); // blink LED quickly
      delay(100);                 // (100 milliseconds)
      digitalWrite(ledPin, LOW);
      delay(100);
   }

//--- Next, delay for a second:
      digitalWrite(ledPin, LOW);
      delay(1000);
}