annoying_sounds.pde

/*
  Analog Input
 Demonstrates analog input by reading an analog sensor on analog pin 0 and
 turning on and off a light emitting diode(LED)  connected to digital pin 13. 
 The amount of time the LED will be on and off depends on
 the value obtained by analogRead(). 
 
 The circuit:
 * Potentiometer attached to analog input 0
 * center pin of the potentiometer to the analog pin
 * one side pin (either one) to ground
 * the other side pin to +5V
 * LED anode (long leg) attached to digital output 13
 * LED cathode (short leg) attached to ground
 
 * Note: because most Arduinos have a built-in LED attached 
 to pin 13 on the board, the LED is optional.
 
 
 Created by David Cuartielles
 Modified 4 Sep 2010
 By Tom Igoe
 
 This example code is in the public domain.
 
 http://arduino.cc/en/Tutorial/AnalogInput
 
 */

int sensorPin = A0;    // select the input pin for the potentiometer
int ledPin = 13;      // select the pin for the LED
int sensorValue = 0;  // variable to store the value coming from the sensor

void setup() {
  // declare the ledPin as an OUTPUT:
  pinMode(ledPin, OUTPUT);  
  Serial.begin(9600);
}

int ledOn = false;

void loop() {
  // read the value from the sensor:
  sensorValue = analogRead(sensorPin);
 Serial.println(sensorValue); 
  
//  // turn the ledPin on
//  digitalWrite(ledPin, LOW);  
//  // stop the program for <sensorValue> milliseconds:
//  delay(sensorValue);          
//  // turn the ledPin off:        
//  digitalWrite(ledPin, HIGH);   
//  // stop the program for for <sensorValue> milliseconds:
//  delay(sensorValue);

  if (ledOn){
    digitalWrite(ledPin, HIGH);   
  }else{
    digitalWrite(ledPin, LOW); 
  }
  ledOn = !ledOn;

  int thisPitch = map(sensorValue, 10, 250, 700, 1000);
  int theDelay = 50;
  tone(8, thisPitch, 100);
  delay(theDelay);
  tone(8, 3*thisPitch/4);
  delay(theDelay);
  tone(8, 2*thisPitch/4);
  delay(theDelay);
  tone(8, 1*thisPitch/4);
  delay(theDelay);
  tone(8, 2*thisPitch/4);
  delay(theDelay);
  tone(8, 3*thisPitch/4);
  delay(theDelay);
  tone(8, thisPitch);
}