Arduino Intro: Blinking LED

Arduino Blinking LED code: /* blink 1. Turn on LED for 1 second 2. Turn off LED for 1 second 3. Repeat */ int pinled = 9; void setup() { // initialize the digital pin as an output. pinMode(pinled, OUTPUT); } // the loop routine runs over and over again forever: void loop() { digitalWrite(pinled, HIGH); // turn the LED on delay(1000); // wait for a second digitalWrite(pinled, LOW); // turn the LED off delay(1000); // wait for a second }