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Woz_Music.ino
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Woz_Music.ino
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// Date : Aug 21, 2020
// Author : Suyash Joshi
// Hardware Setup : Circuit Playground Classic - USB/Battery Powered connected with Aligator Wires from touch pads to Fruits
// Description : Program that plays music when someone touches the fruits
#include <Adafruit_CircuitPlayground.h>
#define CAP_THRESHOLD 50
#define DELAY_TIME 250
uint8_t pads[] = {3, 2, 0, 1, 12, 6, 9, 10};
uint8_t numberOfPads = sizeof(pads)/sizeof(uint8_t);
void setup() {
// Initialize serial.
Serial.begin(9600);
// Initialize Circuit Playground library.
CircuitPlayground.begin();
}
void loop() {
Serial.print("number of pads " + numberOfPads);
// Loop over every capacitive touch pad.
for (int i=0; i<numberOfPads; i++) {
// Play music for each pad if and when touched
if (capButton(pads[i])) {
playMusic(pads[i]);
}
}
}
// helper function to play music note at 4th octve frequency for each pad for 100 ms
void playMusic(uint8_t pad) {
Serial.print("PAD "); Serial.print(pad); Serial.print(" playing note: ");
switch (pad) {
case 3:
Serial.println("C");
// CircuitPlayground.playTone(131, 100, false);
CircuitPlayground.playTone(262, 100, false);
break;
case 2:
Serial.println("D");
// CircuitPlayground.playTone(147, 100, false);
CircuitPlayground.playTone(294, 100, false);
break;
case 0:
Serial.println("E");
//CircuitPlayground.playTone(165, 100, false);
CircuitPlayground.playTone(330, 100, false);
break;
case 1:
Serial.println("F");
// CircuitPlayground.playTone(175, 100, false);
CircuitPlayground.playTone(349, 100, false);
break;
case 12:
Serial.println("G");
// CircuitPlayground.playTone(196, 100, false);
CircuitPlayground.playTone(392, 100, false);
break;
case 6:
Serial.println("A");
// CircuitPlayground.playTone(220, 100, false);
CircuitPlayground.playTone(440, 100, false);
break;
case 9:
Serial.println("B");
// CircuitPlayground.playTone(246, 100, false);
CircuitPlayground.playTone(494, 100, false);
break;
case 10:
Serial.println("C");
// CircuitPlayground.playTone(262, 100, false);
CircuitPlayground.playTone(523, 100, false);
break;
default:
Serial.println("Exception occured!");
}
}
// helper function to check for real touch based on threshold value
boolean capButton(uint8_t pad) {
if (CircuitPlayground.readCap(pad) > CAP_THRESHOLD) {
return true;
} else {
return false;
}
}