Code for arduino 4octave: Difference between revisions

Code for arduino 4octave (view source)

757 bytes added , 1 December 2021

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-* Test_ change a sound (octave) depends on distance_ 01.12.2021
-[[arduino code]]
-reference : https://youtu.be/TcQfqZPUP58
+// 초음파센서와 피에조 스피커. 거리에 따라 (4cm마다) 도레미파솔라시도(4 옥타브) 소리내기.
+int melody[28] = 131,147,165,175,196,220,247,// 도레미파솔라시
+,294,330,349,392,440,494,// 도레미파솔라시
+,587,659,698,784,881,988,// 도레미파솔라시
+,1175,1319,1397,1568,1760,1976,// 도레미파솔라시 };
+int TRIG = 3, ECHO = 4, speaker = 7;
+void setup() {
+Serial.begin(9600);
+pinMode(TRIG,OUTPUT);
+pinMode(ECHO,INPUT);
+pinMode(speaker, OUTPUT); }
+void loop() {
+float distance, duration;
+digitalWrite(TRIG, HIGH);
+delayMicroseconds(1);
+digitalWrite(TRIG,LOW);
+duration = pulseIn(ECHO,HIGH);
+distance = ((float)(duration*340)/10000)/2;
+Serial.println(distance);
+int i;
+if (distance <= ) {
+i=map(distance,0,32,0,7);
+tone (speaker, melody[i], 250);
+delay (300);
+}
+else {
+noTone(speaker);
+}
+}