IT250 Play A Tune Lab

#include "application.h"

// name the pins
#define BUTTONPIN D2
#define BUZZERPIN D4

int press = 0;
int oldPress = 0;
int state = 0;
int melody[] = {4186,2093,1047,523,262,131,65,33};  // notes in the melody
int noteDurations[] = {4,8,8,4,4,4,4,4 };               // note durations
int melody2[] = {33,131,65,262,1047,523,2093,4186};  // notes in the melody
int noteDurations2[] = {2,4,4,3,3,2,1,1 };               // note durations

// This routine runs only once upon reset
void setup() {

    pinMode(BUTTONPIN, INPUT);
    pinMode(BUTTONPIN, OUTPUT);
}

void loop() {

    press = digitalRead(BUTTONPIN);
    if ( press == HIGH && oldPress == LOW) {
        state = 1 - state;
        if (state == 1) {
            tune1();
        }
        else {
            tune2();
        }
    }
    oldPress = press;
}

int tune1() {
    for (int thisNote = 0; thisNote < 8; thisNote++) {    // ergodic all notes
        int noteDuration = 1000/noteDurations[thisNote];  // calculate the note duration
        tone(BUZZERPIN, melody[thisNote], noteDuration);  // let speaker sonds
        int pauseBetweenNotes = noteDuration * 1.30;      // set a minimum time between notes
        delay(pauseBetweenNotes);                         // delay for the while
        digitalWrite(BUZZERPIN,HIGH);                     // stop the tone playing/read button
    }
}

int tune2() {
    for (int thisNote = 0; thisNote < 8; thisNote++) {     // ergodic all notes
        int noteDuration = 1000/noteDurations2[thisNote];  // calculate the note duration
        tone(BUZZERPIN, melody2[thisNote], noteDuration);  // let speaker sonds
        int pauseBetweenNotes = noteDuration * 1.30;       // set a minimum time between notes
        delay(pauseBetweenNotes);                          // delay for the while
        digitalWrite(BUZZERPIN,LOW);                       // stop the tone playing/read button
    }
}