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Theory and Practice of Tangible User Interfaces

Lab 01: Blinking LED

Submitted by xiaomeng on Wed, 09/10/2008 - 23:26

Assignment: Introduction to Arduino and Physical Computing

Collaborators:

Use arduino board to control an LED and make it blink.

Components Used

  • Light Emitting Diode (LED)
  • Resistor

Arduino Code

/*
* Blink
*
* The basic Arduino example. Turns on an LED on for one second,
* then off for one second, and so on... We use pin 13 because,
* depending on your Arduino board, it has either a built-in LED
* or a built-in resistor so that you need only an LED.
*
* http://www.arduino.cc/en/Tutorial/Blink
*/

int ledPin = 13; // LED connected to digital pin 13

void setup() // run once, when the sketch starts
{
pinMode(ledPin, OUTPUT); // sets the digital pin as output
}

void loop() // run over and over again
{
digitalWrite(ledPin, HIGH); // sets the LED on
delay(5000); // waits for 5 seconds
digitalWrite(ledPin, LOW); // sets the LED off
delay(500); // waits for 0.5 second
}

Note: changed delay times to make blink duration longer.