Example 1.1

// Example 1.1 - using the 'for' command

void setup()
{
	pinMode(9, OUTPUT);     // initialise the digital pin 9 as an output
}
void loop()
{
	for (int wow = 1; wow <= 5;  wow++)
	{
		digitalWrite(9, HIGH); // turn on digital pin 9
		delay(1000);         // wait a moment
		digitalWrite(9, LOW); // turn off digital pin 9
		delay(1000);         // wait a moment
	}
	delay(10000); // wait 10 seconds, then the whole thing will start again
}