Homage to Keyboard Cat

Description:

Charlie Schmidt's keyboard cat inspired this assignment.

 When the cat is squeezed, touched, or poked, Keyboard Cat's songs plays and his eye light up. I used all three LEDS to light up his eyes. Unfortunately, you can't tell in the video! : ( His eyes are made of vellum, which diffused the light in a nice way.

Also, I used the given equation to figure out additional notes.
 
 I sewed a felt cat and placed the FSR and Piezo speaker inside. The cat is also stuffed with polyester stuffing, which is keeping the FSR and speaker secure.

Components

Breadboard

Arduino Microcontroller

RGB LEDs

Resistors

1 FSR

1 Piezo Speaker

For cat:

Felt

Vellum

Polyester Stuff

Sewing supplies

Code

/* Play him off, Keyboard Cat!
 * -----------
 *
 * Charlie Schmidt's keyboard cat inspired this assignment.
 * When the cat is squeeze, Keyboard Cat's songs plays and his eye light up.
 *
 * The calculation of the tones is made following the mathematical
 * operation:
 *
 *       (1/(2 * toneFrequency))* 1 million to get PW time
 *
 * I added a few notes to the table:
 *
 * Middle C = C4
 *
 * note     frequency     period     PW (timeHigh)
 * g3 (G)       196 hz                             2551
 * a3 (A)       220 hz                             2273
 * b3 (B)    245 hz                                2041
 * c4            261 Hz             3830     1915     
 * d4             294 Hz             3400     1700     
 * e4             329 Hz             3038     1519     
 * f4             349 Hz             2864     1432     
 * g4             392 Hz             2550     1275     
 * a4             440 Hz             2272     1136     
 * b4             493 Hz             2028    1014    
 * c5            523 Hz            1912     956
 *
 * (cleft) 2005 D. Cuartielles for K3
 */
 
int redPin = 9; // selecting LED pin
int bluePin = 11;
int greenPin = 10;
int sensorPin = 0; // select pin for sensor
int sensorVal = 0;
int speakerOut = 7;               
byte names[] = {'G','A','B','c', 'd', 'e', 'f', 'g', 'a', 'b', 'cFive'};  
int tones[] = {2551,2273, 2041, 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956};
byte melody[] = "3c3e3g3e3c3e3g3e3A3c3e3c3A3c3e3c2G2B2d2B2G2B2d3B2G2G2G2G2G2G2G2G2G3c3e3g3e3c3e3g3e3B3d3f3d3B3d3f3d3A3c3e3C3A3c3e3c5G"; //edited melody to play keyboard cat's song.
// count length: 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
//                                10                  20                  30

int count = 0;
int count2 = 0;
int count3 = 0;
int MAX_COUNT = 116; // the longer the song, the longer this should be. if short, song will cut off.
int statePin = LOW;

void setup() {
 pinMode(redPin, OUTPUT); // three pins will light up!
 pinMode(bluePin, OUTPUT);
 pinMode(greenPin, OUTPUT);   
 pinMode(speakerOut, OUTPUT);
 Serial.begin(9600);s
 
}

void loop() {
  sensorVal = analogRead(sensorPin); // read the value of the sensor
  if (sensorVal > 0){ // if sensor val is being touch, turn on Led
   for (count = 0; count < MAX_COUNT; count++) {
    statePin = !statePin; // causes light to flickr
    digitalWrite(redPin, statePin);
    digitalWrite(bluePin, statePin);
    digitalWrite(greenPin, statePin);
    for (count3 = 0; count3 <= (melody[count*2] - 48) * 30; count3++) {
      for (count2=0;count2<8;count2++) {
        if (names[count2] == melody[count*2 + 1]) {       
          digitalWrite(speakerOut,HIGH);
          delayMicroseconds(tones[count2]);
          digitalWrite(speakerOut, LOW);
          delayMicroseconds(tones[count2]);
        }
        if (melody[count*2 + 1] == 'p') {
          // make a pause of a certain size
          digitalWrite(speakerOut, 0);
          delayMicroseconds(500);
        }
      }
      }
   }
  }
  else if (sensorVal == 0){ // need this to turn off loop
     digitalWrite(redPin, 0);
     digitalWrite(bluePin, 0);
     digitalWrite(greenPin, 0);
      digitalWrite(speakerOut, 0);
      return;
      }
}

Movie