November 24, 2007
Reading for November 27th, are now posted. Enjoy!

October 2, 2007
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May 24, 2008
This site has been archived and is no longer editable. Stay tuned for the next version, coming in the fall!

Blinking LED Breadboard

Project Members: 
Lora Oehlberg


In this lab I setup a breadboard with a blinking LED, controlled by the Arduino board.

Components Used

  • Arduino
  • Breadboard
  • Resistor (Green-Brown-Red-Gold)
  • Red LED

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.

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(1000); // waits for a second


Blinking LED Breadboard: Blinking LED BreadboardBlinking LED Breadboard



The problem with being so thorough in your report is that I could see you used the wrong resistor. A problem I might not have caught otherwise :)

Do you know what effect this has on the circuit?


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