8. LED Blink

• Components

•  Connection
  • Connect one terminal of LED to 330 ohm resistor and one terminal to ground of arduino.
  • Connect one terminal of resistor to arduino PIN 7.
     
• Code

int PIN =7;
void setup()
{
	pinMode(PIN, OUTPUT);
}

void loop() 
{
	digitalWrite(PIN, HIGH);
	delay(400);
	digitalWrite(PIN, LOW);
	delay(800);
}

• Output