This example shows how to use the tone() command to generate notes. It plays a little melody you may have heard before.
Circuit
image developed using Fritzing. For more circuit examples, see the Fritzing project page
Connect one terminal of your speaker to digital pin 8 through a 100 ohm resistor. Connect the other terminal to ground.
Schematic
Code
The code below uses an extra file, pitches.h. This file contains all the pitch values for typical notes. For example, NOTE_C4 is middle C. NOTE_FS4 is F sharp, and so forth. This note table was originally written by Brett Hagman, on whose work the tone() command was based. You may find it useful for whenever you want to make musical notes.
The main sketch is as follows:
Melody
Plays a melody
circuit:
* 8-ohm speaker on digital pin 8
created 21 Jan 2010
modified 30 Aug 2011
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone
*/
#include “pitches.h”
// notes in the melody:
int melody[] = {
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
Hardware Required
- Arduino board
- 8 ohm small speaker
- 100 ohm resistor
- hook-up wire
For more detail: Play a Melody using the tone() function with Arduino
