/**
   Mini piano for Arduino.

   You can control the colorful buttons with your keyboard:
   After starting the simulation, click anywhere in the diagram to focus it.
   Then press any key between 1 and 8 to play the piano (1 is the lowest note,
   8 is the highest).

   Copyright (C) 2021, Uri Shaked. Released under the MIT License.
*/

#include "pitches.h"

#define SPEAKER_PIN 8

const uint8_t buttonPins[] = { 12, 11, 10, 9, 7, 6, 5, 4 };

const int buttonTones[] = {
  NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5
};
 int numTones;
int ledPin =13;
int tune1[] = {0,0,4,4,5,5,4,99,3,3,2,2,1,1,0,99};
//int s = sizeof(tune1);
int s =16;
int Speed;

void setup() {
  Serial.begin(115200);
    for (uint8_t i = 0; i < 8; i++) 
    {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  pinMode(SPEAKER_PIN, OUTPUT);
}

void loop() 
{
  numTones = s;
  int pitch = 0;
  for (uint8_t i = 0; i < numTones; i++) 
  {
    Speed = 1023 - analogRead(A0)+50;
    Serial.print(Speed);
  
       pitch = buttonTones[tune1[i]];
       Serial.print("numtones =");
       Serial.print(numTones);
       Serial.print("\t i = ");
       Serial.print(i);
    Serial.print ("\t pitch");
    Serial.println(pitch);
  
  if (pitch != 99) 
  {
    tone(SPEAKER_PIN, pitch);
    digitalWrite(ledPin,HIGH);
    delay(50);
    digitalWrite(ledPin,LOW);
    delay(Speed);
    noTone(SPEAKER_PIN);
    delay(100);
  } 
  else
   {
    noTone(SPEAKER_PIN);
    delay(Speed);
  }
}
}