Jing Deng's Arduino code for RCUK Magherafelt project

RCUK Arduino

/*
  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"

const int led_R = 13;
const int led_Y = 12;
const int led_G = 11;
const int led_B = 10;
const int tilt = 9;
const int button1 = 8;
const int button2 = 7;
const int button3 = 6;
const int button4 = 5;
const int speaker = 4;
const int lightSensor = A2;
const int tempSensor = A1;
const int knob = A0;

int fadeValue = 0;
int lightValue = 0;
int tempValue = 0;
int knobValue = 0;
int tiltState = 0;
int button1State = 0;
int button2State = 0;
int button3State = 0;
int button4State = 0;
// notes in the melody:
int melody[] = {
  262, 196, 196, 220, 196, 0, 247, 262, 3951, 3520, 2349};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
  4, 8, 8, 4,4,4,4,4 };

void setup() {
  Serial.begin(9600); 
  pinMode(led_R, OUTPUT);
  pinMode(led_Y, OUTPUT);
  pinMode(led_G, OUTPUT);
  pinMode(led_B, OUTPUT);
  pinMode(speaker, OUTPUT);
  pinMode(tilt, INPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
  pinMode(button4, INPUT);
  // iterate over the notes of the melody:
//  for (int thisNote = 0; thisNote < 8; thisNote++) {
//
//    // 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 = 1000/noteDurations[thisNote];
//    tone(4, 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(4);
//  }

}

void loop() {
  
  // initialization and read values from all inputs
  int noteDuration = 1000/4;
  int knobmap = 0;
  int pauseBetweenNotes = noteDuration * 1.30;
  lightValue = analogRead(lightSensor);
  tempValue = analogRead(tempSensor);
  knobValue = analogRead(knob);
  tiltState = digitalRead(tilt);
  button1State = digitalRead(button1);
  button2State = digitalRead(button2);
  button3State = digitalRead(button3);
  button4State = digitalRead(button4);
  
  // if the breadboard was held at a right angle, it plays sound
  if (tiltState != HIGH)
  {
    tone(speaker, melody[10],noteDuration);
    delay(pauseBetweenNotes);
    tone(speaker, melody[9],noteDuration);
    delay(pauseBetweenNotes);
    noTone(speaker);
  }
  
  
  // turn the knob to hear different sound
  if (knobValue > 20)
  {
    int thisPitch = map(knobValue, 0, 1023, 50, 2000);
    tone(speaker, (thisPitch * 2.5), 5000);
    delay(175);
    tone(speaker, (thisPitch * 2), 5000);
    delay(175);
    tone(speaker, (thisPitch * 1.5), 5000);
    delay(175);
    tone(speaker, (thisPitch), 5000);
    delay(175);
    
    thisPitch = thisPitch * .5;
    
    tone(speaker, (thisPitch), 5000);
    delay(175);
    tone(speaker, (thisPitch * 1.5), 5000);
    delay(175);
    tone(speaker, (thisPitch * 2), 5000);
    delay(175);
    tone(speaker, (thisPitch * 2.5), 5000);
    delay(175);
  }
    
  
  // check different button to play different sound
  if (button1State == HIGH)
  {
    tone(speaker, 200, noteDuration);
    delay(pauseBetweenNotes);
  }
  else if ((button2State == HIGH))
  {
    tone(speaker, 1000,noteDuration);
    delay(pauseBetweenNotes);
  }
    else if ((button3State == HIGH))
  {
    tone(speaker, 3000,noteDuration);
    delay(pauseBetweenNotes);
  }
    else if ((button4State == HIGH))
  {
    tone(speaker, 5000, noteDuration);
    delay(pauseBetweenNotes);
  }
  else
  {
    noTone(speaker);
  }
  
 
 // check temperature and light up coloured LED   
  fadeValue = 255 - map(lightValue, 0, 1023, 0, 255);
  
  if (tempValue <= 300)
  {
    digitalWrite(led_R,LOW);
    digitalWrite(led_Y,LOW);
    analogWrite(led_G,0);
    analogWrite(led_B,fadeValue);
  }
  else if (300 < tempValue && tempValue <= 400)
  {
    digitalWrite(led_R,0);
    digitalWrite(led_Y,0);
    analogWrite(led_G,fadeValue);
    analogWrite(led_B,0);
    
  }
    else if (400 < tempValue && tempValue <= 500)
  {
    digitalWrite(led_R,0);
    digitalWrite(led_Y,1);
    analogWrite(led_G,0);
    analogWrite(led_B,0);
  }
  else
  {
    digitalWrite(led_R,1);
    analogWrite(led_Y,0);
    analogWrite(led_G,0);
    analogWrite(led_B,0);
    tone(speaker, 2500, 5000);
    delay(175);
    tone(speaker, 3000, 5000);
    delay(175);
  }
  
  // write analog sensor value to computer
  Serial.print("light sensor = " );                       
  Serial.println(lightValue);      
  Serial.print("\t temperature sensor = ");      
  Serial.println(tempValue);
  Serial.print("\t knob = ");      
  Serial.println(knobValue);
}