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Examples
See the foundations page for in-depth description of core concepts of the Arduino hardware and software; the hackingpage for information on extending and modifying the Arduino hardware and software; and the links page for otherdocumentation.
Examples
Simple programs that demonstrate the use of the Arduinoboard. These are included with the Arduino environment; toopen them, click the Open button on the toolbar and look inthe examples folder. (If you're looking for an olderexample, check the Arduino 0007 tutorials page.)
Digital I/O
Blink: turn an LED on and off.Blink Without Delay: blinking an LED without usingthe delay() function.Button: use a pushbutton to control an LED.Debounce: read a pushbutton, filtering noise.Loop: controlling multiple LEDs with a loop and anarray.
Analog I/O
Analog Input: use a potentiometer to control theblinking of an LED.Fading: uses an analog output (PWM pin) to fade anLED.Knock: detect knocks with a piezo element.Smoothing: smooth multiple readings of an analoginput.
Communication
These examples include code that allows the Arduino to talkto Processing sketches running on the computer. For moreinformation or to download Processing, see processing.org.
ASCII Table: demonstrates Arduino's advanced serialoutput functions.Dimmer: move the mouse to change the brightnessof an LED.Graph: sending data to the computer and graphing itin Processing.Physical Pixel: turning on and off an LED by sendingdata from Processing.Virtual Color Mixer: sending multiple variables fromArduino to the computer and reading them inProcessing.
EEPROM Library
Other Examples
These are more complex examples for using particularelectronic components or accomplishing specific tasks. Thecode is included on the page.
Miscellaneous
TwoSwitchesOnePin: Read two switches with one I/OpinRead a Tilt SensorControlling an LED circle with a joystick3 LED color mixer with 3 potentiometers
Timing & Millis
Stopwatch
Complex Sensors
Read an ADXL3xx accelerometerRead an AccelerometerRead an Ultrasonic Range Finder (ultrasound sensor)Reading the qprox qt401 linear touch sensor
Sound
Play Melodies with a Piezo SpeakerPlay Tones from the Serial ConnectionMIDI Output (from ITP physcomp labs) and fromSpooky Arduino
Interfacing w/ Hardware
Multiply the Amount of Outputs with an LED DriverInterfacing an LCD display with 8 bits
LCD interface libraryDriving a DC Motor with an L293 (from ITPphyscomp labs).Driving a Unipolar Stepper MotorBuild your own DMX Master deviceImplement a software serial connection
RS-232 computer interfaceInterface with a serial EEPROM using SPIControl a digital potentiometer using SPIMultiple digital outs with a 595 Shift RegisterX10 output control devices over AC powerlines usingX10
http://www.arduino.cc/http://www.arduino.cc/en/Main/Buyhttp://www.arduino.cc/en/Main/Softwarehttp://www.arduino.cc/en/Guide/HomePagehttp://www.arduino.cc/en/Reference/HomePagehttp://www.arduino.cc/en/Main/Hardwarehttp://www.arduino.cc/en/Main/FAQhttp://www.arduino.cc/blog/http://www.arduino.cc/cgi-bin/yabb2/YaBB.plhttp://www.arduino.cc/playground/http://www.arduino.cc/en/Hacking/HomePagehttp://www.arduino.cc/en/Hacking/HomePagehttp://www.arduino.cc/en/Hacking/HomePagehttp://processing.org/http://www.arduino.cc/en/Tutotial/KeyboardSerialhttp://itp.nyu.edu/physcomp/Labs/MIDIOutputhttp://itp.nyu.edu/physcomp/Labs/Labshttp://todbot.com/blog/2006/10/29/spooky-arduino-projects-4-and-musical-arduino/http://todbot.com/blog/2006/10/29/spooky-arduino-projects-4-and-musical-arduino/http://itp.nyu.edu/physcomp/Labs/DCMotorControlhttp://itp.nyu.edu/physcomp/Labs/Labshttp://itp.nyu.edu/physcomp/Labs/Labs

EEPROM Clear: clear the bytes in the EEPROM.EEPROM Read: read the EEPROM and send its valuesto the computer.EEPROM Write: stores values from an analog input tothe EEPROM.
Stepper Library
Motor Knob: control a stepper motor with apotentiometer.
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Foundations
This page contains explanations of some of the elements of the Arduino hardware and software and the concepts behindthem. Page Discussion
Basics
Sketch: The various components of a sketch and how they work.
Microcontrollers
Digital Pins: How the pins work and what it means for them to be configured as inputs or outputs.
Analog Input Pins: Details about the analog-to-digital conversion and other uses of the pins.
PWM: How the analogWrite() function simulates an analog output using pulse-width modulation.
Memory: The various types of memory available on the Arduino board.
Arduino Firmware
Bootloader: A small program pre-loaded on the Arduino board to allow uploading sketches.
Programming Technique
Variables: How to define and use variables.
Port Manipulation: Manipulating ports directly for faster manipulation of multiple pins
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Links
Arduino examples, tutorials, and documentation elsewhere on the web.
Books and Manuals
Making Things Talk (by Tom Igoe): teaches you how to getyour creations to communicate with one another by formingnetworks of smart devices that carry on conversations withyou and your environment.
Arduino Booklet (pdf): an illustrated guide to the philosophyand practice of Arduino.
Community Documentation
Tutorials created by the Arduino community. Hosted on thepublicly-editable playground wiki.
Board Setup and Configuration: Information about thecomponents and usage of Arduino hardware.
Interfacing With Hardware: Code, circuits, and instructionsfor using various electronic components with an Arduinoboard.
OutputInputInteractionStorageCommunication
Interfacing with Software: how to get an Arduino boardtalking to software running on the computer (e.g.Processing, PD, Flash, Max/MSP).
Code Library and Tutorials: Arduino functions for performingspecific tasks and other programming tutorials.
Electronics Techniques: tutorials on soldering and otherelectronics resources.
Other Examples and Tutorials
Learn electronics using Arduino: an introduction toprogramming, input / output, communication, etc. usingArduino. By ladyada.
Lesson 0: Pre-flight check...Is your Arduino andcomputer ready?Lesson 1: The "Hello World!" of electronics, a simpleblinking lightLesson 2: Sketches, variables, procedures andhacking codeLesson 3: Breadboards, resistors and LEDs,schematics, and basic RGB color-mixingLesson 4: The serial library and binary data - gettingchatty with Arduino and crunching numbersLesson 5: Buttons & switches, digital inputs, pull-upand pull-down resistors, if/if-else statements,debouncing and your first contract product design.
Tom Igoe's Physical Computing Site: lots of information onelectronics, microcontrollers, sensors, actuators, books, etc.
http://www.arduino.cc/http://www.arduino.cc/en/Main/Buyhttp://www.arduino.cc/en/Main/Softwarehttp://www.arduino.cc/en/Guide/HomePagehttp://www.arduino.cc/en/Reference/HomePagehttp://www.arduino.cc/en/Main/Hardwarehttp://www.arduino.cc/en/Main/FAQhttp://www.arduino.cc/blog/http://www.arduino.cc/cgi-bin/yabb2/YaBB.plhttp://www.arduino.cc/playground/http://www.arduino.cc/en/Hacking/HomePagehttp://www.oreilly.com/catalog/9780596510510/http://www.oreilly.com/catalog/9780596510510/http://www.tinker.it/en/uploads/v3_arduino_small.pdfhttp://www.tinker.it/en/uploads/v3_arduino_small.pdfhttp://www.arduino.cc/playground/http://www.arduino.cc/playground/Main/ArduinoCoreHardwarehttp://www.arduino.cc/playground/Main/InterfacingWithHardwarehttp://www.arduino.cc/playground/Main/InterfacingWithHardware#Outputhttp://www.arduino.cc/playground/Main/InterfacingWithHardware#Inputhttp://www.arduino.cc/playground/Main/InterfacingWithHardware#Interactionhttp://www.arduino.cc/playground/Main/InterfacingWithHardware#Storagehttp://www.arduino.cc/playground/Main/InterfacingWithHardware#Communicationhttp://www.arduino.cc/playground/Main/InterfacingWithSoftwarehttp://www.arduino.cc/playground/Main/GeneralCodeLibraryhttp://www.arduino.cc/playground/Main/ElectroInfoResourceshttp://www.ladyada.net/learn/arduino/index.htmlhttp://www.ladyada.net/http://www.ladyada.net/learn/arduino/lesson0.htmlhttp://www.ladyada.net/learn/arduino/lesson1.htmlhttp://www.ladyada.net/learn/arduino/lesson2.htmlhttp://www.ladyada.net/learn/arduino/lesson3.htmlhttp://www.ladyada.net/learn/arduino/lesson4.htmlhttp://www.ladyada.net/learn/arduino/lesson5.htmlhttp://tigoe.net/pcomp/

Example labs from ITP
Spooky Arduino: Longer presentation-format documentsintroduci

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