Tangible User Interfaces - Fall 2011

/*
  keyboard - modified.
 
 Plays a pitch that changes based on a changing analog input from a FSR and a photo cell
 
 circuit:
 * 1 photocell
 * 3 10K resistors
 * 8-ohm speaker on digital pin 8
 
 created 21 Jan 2010
 Modified 4 Sep 2010
 by Tom Igoe

This example code is in the public domain.
 
 http://arduino.cc/en/Tutorial/Tone3
 
 */

#include "pitches.h"

const int threshold = 10;    // minimum reading of the sensors that generates a note

// notes to play, corresponding to the 3 sensors:
//int notes[] = {
//  NOTE_B0, NOTE_B4,NOTE_C3 };

void setup() {

}

void loop() {
  //for (int thisSensor = 0; thisSensor < 3; thisSensor++) {
    // get a sensor reading:
    int fsrSensor = 0;
    int sensorReading = analogRead(fsrSensor);
    int photoSensor1 = 1;
    int photo1 = analogRead(photoSensor1);
//    int photoSensot2 = 2;
//    int photo2 = analogRead(photoSensor2);
//    int phototSensor3 = 3;
//    int photo3 = analogRead(photoSensor3);
    
    // if the sensor is pressed hard enough:
    if (sensorReading > 896 ) {
      // play the note corresponding to this sensor:
      tone(8, NOTE_B0, 100);
    }
    else if (sensorReading > 768){
      tone(8, NOTE_B1, 100);
    }
      else if (sensorReading > 640){
      tone(8, NOTE_B2, 100);
    }
      else if (sensorReading > 512){
      tone(8, NOTE_B3, 100);
    }
      else if (sensorReading > 384){
      tone(8, NOTE_B4, 100);
    }
    else if (sensorReading > 256){
      tone(8, NOTE_B5, 100);
    }
      else if (sensorReading > 128){
      tone(8, NOTE_B6, 100);
    }
      else if (sensorReading > 10){
      tone(8, NOTE_B7, 100);
    }
      else if (photo1 > 896 ) {
      // play the note corresponding to this sensor:
      noTone(8); // it will depend on the light conditions
      //tone(8, NOTE_C1, 100);
    }
    else if (photo1 > 768){
     // tone(8, NOTE_C2, 100);
     noTone(8);
    }
      else if (photo1 > 640){
      //tone(8, NOTE_C3, 100);
      noTone(8);
    }
      else if (photo1 > 512){
      //tone(8, NOTE_C4, 100);
      noTone(8);
    }
      else if (photo1 > 384){
      tone(8, NOTE_C5, 100);
    }
    else if (photo1 > 256){
      tone(8, NOTE_C6, 100);
    }
      else if (photo1 > 128){
      tone(8, NOTE_C7, 100);
    }
      else if (photo1 > 10){
      tone(8, NOTE_C8, 100);
    }
  //}
  Serial.println();
}