Assignment: Introduction to Arduino and Physical Computing
Collaborators:
Description:In this lab, we created a circuit with an LED, a resistor, the Arduino board, powered by the USB from our computers.  We then used the code below and the Arduino board to control the LED, making it blink.
Components:

• Arduino Board
• Bread board
• 220-ohm Resistor
• LED
• computer
• wire

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(1000); // waits for a second
digitalWrite(ledPin, LOW); // sets the LED off
delay(3000); // waits for 3 seconds
digitalWrite(ledPin, HIGH); // sets the LED on
delay(500); // waits for a second
digitalWrite(ledPin, LOW); // sets the LED off
delay(1000); // waits for a second
}