Lab6 - Chiptune Musicbox!
Description: I've created a simple music box, where 4 songs are programmed into the board. By tapping on the FSR, you play one note in the song. The faster you tap the FSR, the faster the song will play, thereby allowing the user to dictate his own tempo. One of the potentiometer controls which of the 4 songs will play, and the other pot modules the pitch of the song slightly (but I haven't figured out a way to do this so it pitch shifts the entire song correctly).
I also used a 'pitches.h' file that created a hash table to correlate notes to their frequencies.
Also, I coded this solution in a very brute force type of manner. I didn't know how to implement a setup where the different songs could be kept in a master array. I couldn't figure out a better solution other than repeating my code for each different song.
Items used:
- 2 pots
- 1 FSR
- Arduino Uno
- Breadboard
- Lots of cable
- Box to house the sensors
Code:
/*
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"
int thisNote = 0;
// notes in the melody:
//shave and a haircut
int melody[] = {
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3, NOTE_B3, NOTE_C4};
//Simpsons Theme
int melody2[] = {
NOTE_C4, NOTE_E4, NOTE_FS4, NOTE_A4, NOTE_G4, NOTE_E4, NOTE_C4, NOTE_A3, NOTE_FS3, NOTE_FS3, NOTE_FS3, NOTE_G3,NOTE_FS3, NOTE_FS3, NOTE_FS3,NOTE_G3, NOTE_B3, NOTE_C4,NOTE_C4,NOTE_C4,NOTE_C4};
//Final Fantasy Battle Victory
int melody3[] = { NOTE_G4, NOTE_G4, NOTE_G4, NOTE_G4, NOTE_DS4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_G4};
//Mario Brothers Theme
int melody4[] = {
NOTE_E4, NOTE_E4, NOTE_E4, NOTE_C4, NOTE_E4, NOTE_G4, NOTE_G3, NOTE_C4, NOTE_G3, NOTE_E3, NOTE_A3, NOTE_B3,NOTE_AS3, NOTE_A3,NOTE_G3,NOTE_E4,NOTE_G4,NOTE_A4,NOTE_F4,NOTE_G4,NOTE_E4,NOTE_C4,NOTE_D4,NOTE_B3, NOTE_C4, NOTE_G3,NOTE_E3,NOTE_A3,NOTE_B3,NOTE_AS3,NOTE_A3,NOTE_G3,NOTE_E4,NOTE_G4,NOTE_A4,NOTE_F4,NOTE_G4,NOTE_E4,NOTE_C4,NOTE_D4,NOTE_B3,NOTE_G4,NOTE_FS4,NOTE_F4,NOTE_DS4,NOTE_E4,NOTE_G3,NOTE_A3,NOTE_C4,NOTE_A3,NOTE_C4,NOTE_D4,NOTE_G4,NOTE_FS4,NOTE_F4,NOTE_DS4,NOTE_E4,NOTE_C5,NOTE_C5,NOTE_C5,NOTE_D4,NOTE_G4,NOTE_FS4,NOTE_F4,NOTE_DS4,NOTE_E4,NOTE_G3,NOTE_A3,NOTE_C4,NOTE_A3,NOTE_C4,NOTE_D4,NOTE_DS4,NOTE_D4,NOTE_C4};
//this is to keep track of how many notes each melody is
int length;
int length2;
int length3;
int length4;
//to keep track of which song is playing
int song;
//sensors
int pot1Value;
int pot2Value;
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
4, 8, 8, 4,4,4,4 };
int noteDurations3[] = {
8, 8, 8,4,4,4,8,8,2};
int speakerPin = 7;
void setup() {
// iterate over the notes of the melody:
Serial.begin(9600);
length = sizeof(noteDurations);
length2 = sizeof(melody2);
length3 = sizeof(melody3);
length4 = sizeof(melody4);
//Serial.println(length2);
pot2Value = analogRead(A2); // 0 - 1023
song = map(pot2Value,0,1023,0,3);
}
void loop() {
//Serial.println(length);
pot2Value = analogRead(A2); // 0 - 1023
song = map(pot2Value,0,1023,0,3);
Serial.println(pot2Value);
if (song == 0) {
Serial.println("playing song 1");
while (thisNote < length/2) {
int pot1Value = analogRead(A1); // 0 - 1023
int modulate = map(pot1Value, 0, 1023, 0, 100);
int fsrValue = analogRead(A0); // 0 - 1023
// Serial.println(fsrValue);
if (fsrValue > 500) {
//Serial.println(thisNote);
//Serial.println(melody[thisNote]);
int noteDuration = 1000/noteDurations[thisNote];
tone(speakerPin, melody[thisNote]+modulate,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(speakerPin);
// delay(1000);
thisNote++;
}
}
thisNote =0; //resets the melody
delay(100);
}
else if (song == 1) {
Serial.println("playing song 2");
while (thisNote < length2/2) {
int pot1Value = analogRead(A1); // 0 - 1023
int modulate = map(pot1Value, 0, 1023, 0, 100);
int fsrValue = analogRead(A0); // 0 - 1023
// Serial.println(fsrValue);
if (fsrValue > 500) {
int noteDuration = 1000/8;//noteDurations2[thisNote];
tone(speakerPin, melody2[thisNote]+modulate,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(speakerPin);
// delay(1000);
thisNote++;
}
}
thisNote = 0; //resets the melody
delay(100);
}
else if (song == 2) {
Serial.println("playing song 3");
while (thisNote < length3/2) {
int pot1Value = analogRead(A1); // 0 - 1023
int modulate = map(pot1Value, 0, 1023, 0, 100);
int fsrValue = analogRead(A0); // 0 - 1023
//Serial.println(fsrValue);
if (fsrValue > 500) {
int noteDuration = 1000/noteDurations3[thisNote];
tone(speakerPin, melody3[thisNote]+modulate,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(speakerPin);
// delay(1000);
thisNote++;
}
}
thisNote =0; //resets the melody
delay(100);
}
else if (song == 3) {
Serial.println("playing song 4");
while (thisNote < length4/2) {
int pot1Value = analogRead(A1); // 0 - 1023
int modulate = map(pot1Value, 0, 1023, 0, 100);
int fsrValue = analogRead(A0); // 0 - 1023
// Serial.println(fsrValue);
if (fsrValue > 500) {
int noteDuration = 1000/8;//noteDurations2[thisNote];
tone(speakerPin, melody4[thisNote]+modulate,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(speakerPin);
// delay(1000);
thisNote++;
}
}
thisNote =0; //resets the melody
delay(100);
}
}
-----
my pitches.h file:
#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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