Lab 5

Submitted by zwasson on Wed, 03/06/2013 - 10:00

Description

The purpose of this lab was to explore input/output coincidence. Using a speaker and a light sensor, I created a music box that only plays music when the user spins the handle. The light sensor detects the internal rotation and begins playing the music. In particular, I had a Nyan Cat papercraft that I augmented with these electronics. The music sequence was developed by others (mentioned in the code comments below).

Components

Arduino Uno
Light Sensor
Speaker
Nyan Cat Papercraft

Code

/*

Lab4

This lab uses light sensors and a speaker

Nyan Cat music box

Original Arduino music code by

Bruce Helsen (geobruce)

Stan Draulans (purewantfun)

update (Jrigvd (Jordy v. D.))

Zach Wasson

*/

#include "pitches.h"

#define THRESHOLD 10

int light_sensor = A0;

int old_val, new_val;

int intro[] = {

//intro

NOTE_DS5,NOTE_E5,NOTE_FS5,NOTE_B5,NOTE_DS5,

NOTE_E5,NOTE_FS5,NOTE_B5,NOTE_CS6,NOTE_DS6,

NOTE_CS6,NOTE_AS5,NOTE_B5,NOTE_FS5,NOTE_DS5,

NOTE_E5,NOTE_FS5,NOTE_B5,NOTE_CS6,NOTE_AS5,

NOTE_B5,NOTE_CS6,NOTE_E6,NOTE_DS6,NOTE_E6,

NOTE_B5

};

// note durations: 4 = quarter note, 8 = eighth note, etc.:

int noteDurations[] = {

16,16,8,8,16,

16,16,16,16,16,

16,16,8,8,16,

16,8,8,16,16,

16,16,16,16,16,

16

};

void setup() {

new_val = analogRead(light_sensor);

delay(100);



for (int thisNote = 0; thisNote < 25; thisNote++) {

// only play if user is spinning device

old_val = new_val;

new_val = analogRead(light_sensor);

int difference = abs(new_val - old_val);

while(difference < THRESHOLD) {

old_val = new_val;

new_val = analogRead(light_sensor);

difference = abs(new_val - old_val);

delay(100);

}

// to calculate the note duration, take one second

// divided by the note type.

//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.

int noteDuration = 1500/noteDurations[thisNote];

tone(8, intro[thisNote],noteDuration);

// to distinguish the notes, set a minimum time between them.

// the note's duration + 30% seems to work well:

int pauseBetweenNotes = noteDuration * 1.30;

delay(pauseBetweenNotes);

// stop the tone playing:

noTone(8);

}

}

int melody[] = {

//A

NOTE_FS5,NOTE_GS5,NOTE_DS5,NOTE_DS5,REST,

NOTE_B4,NOTE_D5,NOTE_CS5,NOTE_B4,REST,

NOTE_B4,NOTE_CS5,NOTE_D5,NOTE_D5,NOTE_CS5,

NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_FS5,NOTE_GS5,

NOTE_DS5,NOTE_FS5,NOTE_CS5,NOTE_DS5,NOTE_B4,

NOTE_CS5,NOTE_B4,NOTE_DS5,NOTE_FS5,NOTE_GS5,

NOTE_DS5,NOTE_FS5,NOTE_CS5,NOTE_DS5,NOTE_B4,

NOTE_D5,NOTE_DS5,NOTE_D5,NOTE_CS5,NOTE_B4,

NOTE_CS5,NOTE_D5,NOTE_B4,NOTE_CS5,NOTE_DS5,

NOTE_FS5,NOTE_CS5,NOTE_DS5,NOTE_CS5,NOTE_B4,

NOTE_CS5,NOTE_B4,NOTE_CS5,NOTE_FS5,NOTE_GS5,

NOTE_DS5,NOTE_DS5,REST,NOTE_B4,NOTE_D5,

NOTE_CS5,NOTE_B4,REST,NOTE_B4,NOTE_CS5,

NOTE_D5,NOTE_D5,NOTE_CS5,NOTE_B4,NOTE_CS5,

NOTE_DS5,NOTE_FS5,NOTE_GS5,NOTE_DS5,NOTE_FS5,

NOTE_CS5,NOTE_DS5,NOTE_B4,NOTE_CS5,NOTE_B4,

NOTE_DS5,NOTE_FS5,NOTE_GS5,NOTE_DS5,NOTE_FS5,

NOTE_CS5,NOTE_DS5,NOTE_B4,NOTE_D5,NOTE_DS5,

NOTE_D5,NOTE_CS5,NOTE_B4,NOTE_CS5,NOTE_D5,

NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_FS5,NOTE_CS5,

NOTE_DS5,NOTE_CS5,NOTE_B4,NOTE_CS5,NOTE_B4,

NOTE_CS5,

//end of loop

NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_B4,

NOTE_E5,NOTE_DS5,NOTE_E5,NOTE_FS5,NOTE_B4,

NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,NOTE_FS4,

NOTE_E5,NOTE_DS5,NOTE_CS5,NOTE_B4,NOTE_FS4,

NOTE_DS4,NOTE_E4,NOTE_FS4,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,

NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_FS4,

//

NOTE_B4,NOTE_B4,NOTE_AS4,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_E4,NOTE_E5,NOTE_DS5,NOTE_E5,

NOTE_FS5,NOTE_B4,NOTE_AS4,

//

NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_B4,

NOTE_E5,NOTE_DS5,NOTE_E5,NOTE_FS5,NOTE_B4,

NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,NOTE_FS4,

NOTE_E5,NOTE_DS5,NOTE_CS5,NOTE_B4,NOTE_FS4,

NOTE_DS4,NOTE_E4,NOTE_FS4,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,

NOTE_B4,NOTE_CS5,NOTE_DS5,NOTE_B4,NOTE_FS4,

NOTE_GS4,NOTE_FS4,NOTE_B4,NOTE_B4,NOTE_AS4,

NOTE_B4,NOTE_FS4,NOTE_GS4,NOTE_B4,NOTE_E5,

NOTE_DS5,NOTE_E5,NOTE_FS5,NOTE_B4,NOTE_CS5

};

int melodyNoteDurations[] = {

//a

8,8,16,16,16,

16,16,16,16,16,

8,8,8,16,16,

16,16,16,16,16,

16,16,16,16,16,

16,16,8,8,16,

16,16,16,16,16,

16,16,16,16,16,

16, 8,16,16,16,

16,16,16,16,16,

8,8,8,8,8,

16,16,16,16,16,

16,16,16,8,8,

8,16,16,16,16,

16,16,16,16,16,

16,16,16,16,16,

8,8,16,16,16,

16,16,16,16,16,

16,16,16,16, 8,

16,16,16,16,16,

16,16,16,8,8,

8,

//

8,16,16,8,16,

16,16,16,16,16,

16,16,16,16,8,

8,16,16,16,16,

16,16,16,16,16,

16,16,16,8,16,

16,8,16,16,16,

16,16,16,16,16,

16,16,

//

8,16,16,16,16,

16,16,16,16,16,

16,8,8,

//

8,16,16,8,16,

16,16,16,16,16,

16,16,16,16,8,

8,16,16,16,16,

16,16,16,16,16,

16,16,16,8,16,

16,8,16,16,16,

16,16,16,16,16,

16,16,

//

8,16,16,16,16,

16,16,16,16,16,

16,8,8

};



void loop() {

// iterate over the notes of the melody:

for (int thisNote = 0; thisNote < 216; thisNote++) {

// only play if user is spinning device

old_val = new_val;

new_val = analogRead(light_sensor);

int difference = abs(new_val - old_val);

while(difference < THRESHOLD) {

old_val = new_val;

new_val = analogRead(light_sensor);

difference = abs(new_val - old_val);

Serial.println(old_val);

Serial.println(new_val);

Serial.println(difference);

Serial.println();

delay(100);

}



// to calculate the note duration, take one second

// divided by the note type.

//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.

int noteDuration = 1400/melodyNoteDurations[thisNote];

tone(8, melody[thisNote],noteDuration);

// to distinguish the notes, set a minimum time between them.

// the note's duration + 30% seems to work well:

int pauseBetweenNotes = noteDuration * 1.30;

delay(pauseBetweenNotes);

// stop the tone playing:

noTone(8);

}

}

/*************************************************

* Public Constants

*************************************************/

#define REST 0

#define NOTE_B0 31

#define NOTE_C1 33

#define NOTE_CS1 35

#define NOTE_D1 37

#define NOTE_DS1 39

#define NOTE_E1 41

#define NOTE_F1 44

#define NOTE_FS1 46

#define NOTE_G1 49

#define NOTE_GS1 52

#define NOTE_A1 55

#define NOTE_AS1 58

#define NOTE_B1 62

#define NOTE_C2 65

#define NOTE_CS2 69

#define NOTE_D2 73

#define NOTE_DS2 78

#define NOTE_E2 82

#define NOTE_F2 87

#define NOTE_FS2 93

#define NOTE_G2 98

#define NOTE_GS2 104

#define NOTE_A2 110

#define NOTE_AS2 117

#define NOTE_B2 123

#define NOTE_C3 131

#define NOTE_CS3 139

#define NOTE_D3 147

#define NOTE_DS3 156

#define NOTE_E3 165

#define NOTE_F3 175

#define NOTE_FS3 185

#define NOTE_G3 196

#define NOTE_GS3 208

#define NOTE_A3 220

#define NOTE_AS3 233

#define NOTE_B3 247

#define NOTE_C4 262

#define NOTE_CS4 277

#define NOTE_D4 294

#define NOTE_DS4 311

#define NOTE_E4 330

#define NOTE_F4 349

#define NOTE_FS4 370

#define NOTE_G4 392

#define NOTE_GS4 415

#define NOTE_A4 440

#define NOTE_AS4 466

#define NOTE_B4 494

#define NOTE_C5 523

#define NOTE_CS5 554

#define NOTE_D5 587

#define NOTE_DS5 622

#define NOTE_E5 659

#define NOTE_F5 698

#define NOTE_FS5 740

#define NOTE_G5 784

#define NOTE_GS5 831

#define NOTE_A5 880

#define NOTE_AS5 932

#define NOTE_B5 988

#define NOTE_C6 1047

#define NOTE_CS6 1109

#define NOTE_D6 1175

#define NOTE_DS6 1245

#define NOTE_E6 1319

#define NOTE_F6 1397

#define NOTE_FS6 1480

#define NOTE_G6 1568

#define NOTE_GS6 1661

#define NOTE_A6 1760

#define NOTE_AS6 1865

#define NOTE_B6 1976

#define NOTE_C7 2093

#define NOTE_CS7 2217

#define NOTE_D7 2349

#define NOTE_DS7 2489

#define NOTE_E7 2637

#define NOTE_F7 2794

#define NOTE_FS7 2960

#define NOTE_G7 3136

#define NOTE_GS7 3322

#define NOTE_A7 3520

#define NOTE_AS7 3729

#define NOTE_B7 3951

#define NOTE_C8 4186

#define NOTE_CS8 4435

#define NOTE_D8 4699

#define NOTE_DS8 4978

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