Jan 30 2013 Lab Submission - Blink

Submitted by stlim on Wed, 01/30/2013 - 16:11



A simple blink application is tested in this lab session.
A green LED turns on for 500ms in every 100ms.
Through this session, I've come to understand a basic usage of Arduino, matrix structure of the breadboard, the polarity of LED.

Components Used

- 1 green LED
- 1 220  ohm resistor
- 1 Arduino Uno board


The code is based on an example code.
  Turns on an LED on for one second, then off for one second, repeatedly.
  This example code is in the public domain.
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(500);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(100);               // wait for a second
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