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Examples

See the foundations page for in-depth description of core concepts of the Arduino hardware and software; the hacking

page for information on extending and modifying the Arduino hardware and software; and the links page for other

documentation.

Examples

Other Examples

Simple programs that demonstrate the use of the Arduino

board. These are included with the Arduino environment; to

open them, click the Open button on the toolbar and look in

the examples folder. (If you're looking for an older

example, check the Arduino 0007 tutorials page.)

These are more complex examples for using particular

electronic components or accomplishing specific tasks. The

code is included on the page.

Miscellaneous

TwoSwitchesOnePin: Read two switches with one I/O

pin

Read a Tilt Sensor

Controlling an LED circle with a joystick

3 LED color mixer with 3 potentiometers

Digital I/O

Blink: turn an LED on and off.

Blink Without Delay: blinking an LED without using

the delay() function.

Button: use a pushbutton to control an LED.

Debounce: read a pushbutton, filtering noise.

Loop: controlling multiple LEDs with a loop and an

array.

Analog I/O

Analog Input: use a potentiometer to control the

blinking of an LED.

Fading: uses an analog output (PWM pin) to fade an

LED.

Knock: detect knocks with a piezo element.

Smoothing: smooth multiple readings of an analog

input.

Communication

These examples include code that allows the Arduino to talk

to Processing sketches running on the computer. For more

information or to download Processing, see processing.org.

ASCII Table: demonstrates Arduino's advanced serial

output functions.

Dimmer: move the mouse to change the brightness

of an LED.

Graph: sending data to the computer and graphing it

in Processing....