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@likersacademia
Last active November 25, 2019 10:24
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//05_distance_speaker
//近づいた回数をカウントして5回ごとに鳴る
//SchooMyとかいてあるところまですすもう
#define echoPin 19
#define trigPin 18
#define SPEAKER 10
#define do 262
#define re 294
#define mi 330
#define fa 349
#define so 392
#define ra 440
#define shi 494
#define do2 523
double Duration = 0;
double Distance = 0;
int count = 0;
void setup() {
Serial.begin(9600);
pinMode(echoPin, INPUT);
pinMode(trigPin, OUTPUT);
pinMode(SPEAKER, OUTPUT);
}
long get_Distance() {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH); //超音波を出力
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
Duration = pulseIn(echoPin, HIGH); //センサからの入力
if (Duration > 0) {
Duration = Duration / 2; //往復距離を半分
Distance = Duration * 340 * 100 / 1000000; //音速を340m/sに設定
//Serial.print("Distance:");
//Serial.print(Distance);
//Serial.println("cm");
}
delay(100);
}
void loop() {
get_Distance();
//SchooMy
//プログラムはここからかえます
if (Distance < 20) { //このエリアになったら]
count++; //カウントする
Serial.print(count); //表示する
Serial.println("回"); //表示する
if (count == 5) { //この数になったら
tone(SPEAKER, do); //鳴る
delay(1000);
noTone(SPEAKER); //鳴らない
count = 0; //カウントをゼロにする
}
while (Distance < 20) {
get_Distance();
}
} else {
noTone(SPEAKER);
}
}
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