/*************************************************************************/
/* */
/* Feature : Arduino Uno Sound and Potentiometer Adjustment */
/* Program */
/* Date : '23.10.18 */
/* */
/* Author/s : Elisa Mae Dela Cruz, DTPH, Inc. */
/* Eunice Jem Avelin, DTPH, Inc. */
/* */
/*************************************************************************/
/*************************************************
#include "pitches.h"
*************************************************/
#include <EEPROM.h>
#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
/* Define the melody (tune) with notes and durations*/
#include <EEPROM.h>
int melody[] = {
NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4
};
int noteDurations[] = {
4, 8, 8, 4, 4, 4, 4, 4
};
int const potPin = A0; /*Potentiometer (a knob) input pin*/
int potValue = 0; /*Store potentiometer value*/
int isPlaying = LOW; /*Initially, we're not playing the melody*/
int currentButtonState; /*Store the current button state*/
int lastButtonState = LOW; /*Store the previous button state*/
int thisNote = 0; /*Keep track of the current note*/
int noteDuration; /*Duration of the note being played*/
int pauseBetweenNotes; /*Pause between notes*/
int newPotValue; /*Store new potentiometer value*/
int adjustedPitch; /*Store adjusted pitch value*/
int eepromButton; /*Store current eeprom button state*/
int lastEepromButton = LOW; /*Store previous eeprom button state*/
int newPotValueMapped; /*Store the mapped value of potentiometer*/
int newMelody; /*Address used in EEPROM*/
int updated; /*Store the sum of value saved in EEPROM and potentiometer*/
int eepromWrite;
int updatedPotValue;
void setup() {
DDRB |= 0x20; /*Set the piezo buzzer pin as an output*/
DDRD &= ~(0xBF); /*Set the button 1 pin as an input*/
DDRD &= ~(0xDF); /*Set the button 2 pin as an input*/
Serial.begin(9600);
eepromWrite = EEPROM.read(newMelody);
Serial.println(eepromWrite);
Serial.println(newPotValueMapped);
}
void loop() {
lastButtonState = currentButtonState; /*Store the previous button 1 state*/
currentButtonState = (PIND & 0x40); /*Read the button 1 pin state*/
newPotValue = analogRead(potPin); /*Read the potentiometer value*/
lastEepromButton = eepromButton; /*Store the previous button 2 state*/
eepromButton = (PIND & 0x20); /*Read the button 2 pin state*/
newPotValueMapped = map(newPotValue, 0, 1023, -100, 100); /*Mapped the value of potentiometer*/
updatedPotValue = map(newPotValueMapped, -100, 100, 0, 200);
updated = updatedPotValue + newMelody; /*Summation of potentiometer value and EEPROM*/
if (currentButtonState && !lastButtonState) { /*button1 is HIGH and previous value is LOW*/
isPlaying = !isPlaying; /*isPlaying is LOW*/
if (currentButtonState && eepromButton) { /*button 1 and button2 are both pressed*/
isPlaying = HIGH; /*isPlaying is HIGH*/
thisNote = 0; /*reset the melody*/
}
} else if (eepromButton && !lastEepromButton) { /*EEPROM is HIGH and previous value is LOW*/
EEPROM.write(newMelody, updatedPotValue); /*Save the mapped value to EEPROM*/
Serial.println(newPotValueMapped); /*Print the value of EEPROM*/
Serial.println(updatedPotValue);
Serial.println(newMelody);
}
if (!isPlaying) { /*If we're supposed to be playing the melody*/
play_melody(updated); /*Play the melody, adjusting the pitch with the*/
} else { /*potentiometer*/
noTone(13); /*Melody stops playing*/
}
}
/*************************************************************************/
/* */
/* Function name : play_melody() */
/* */
/* Feature : play the melody and adjust frequency */
/* */
/* Argument : int potValue: potentiometer value to be use for */
/* computation of new frequency value */
/* */
/* Return value : none */
/* */
/*************************************************************************/
void play_melody(int potValue) {
if (thisNote < 8) {
noteDuration = 1000 / noteDurations[thisNote]; /*Calculate note duration*/
adjustedPitch = melody[thisNote] + potValue; /*Calculate the frequency*/
tone(13, adjustedPitch, noteDuration); /*Play the note on the buzzer*/
pauseBetweenNotes = noteDuration * 1.30; /*Calculate pause between notes*/
delay(pauseBetweenNotes); /*Pause before the next note*/
noTone(13); /*Stop the sound*/
thisNote++; /*Move to the next note*/
if (thisNote == 8) {
thisNote = 0; /*Reset to the beginning of the melody when it's done*/
}
else {
noTone(13); /*Melody stops*/
}
}}