아두이노 교육3일차 적외선 센서

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

int bell = 0; //도레미파솔라시 unsigned int frqArray[7] = {262, 294, 330, 349, 392, 440, 494};   //똑같아요 동요 박자 int signatures[20] = {4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2};   //똑같아요 동요 음계 int scale[20] = {0, 2, 4, 0, 2, 4, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 0};   void setup() {   pinMode(2, INPUT_PULLUP);   pinMode(11, OUTPUT);   pinMode(12, OUTPUT);       digitalWrite(11, HIGH); }   void loop() {   if(digitalRead(2) == LOW)  {     bell = 0;     noTone(12);   }else if(digitalRead(2) == HIGH)  {       unsigned long duration = 1000 / signatures[bell];       tone(12, frqArray[scale[bell]], duration);       delay(duration * 1.5);       noTone(12);       bell++;   } }