35 lines
809 B
C++
35 lines
809 B
C++
//Définition des constanntes
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// PIN Echo
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const int EchoPin = 8;
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// PIN Trigger
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const int TriggerPin = 9;
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void setup() {
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Serial.begin(9600);
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pinMode(TriggerPin, OUTPUT);
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pinMode(EchoPin, INPUT);
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}
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void loop() {
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int cm = ping(TriggerPin, EchoPin);
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Serial.print("Distance mesurée : ");
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Serial.println(cm);
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delay(1000); // 1 s
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}
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//Calculer la distance
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int ping(int TriggerPin, int EchoPin) {
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long duration, distanceCm;
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digitalWrite(TriggerPin, LOW); //Pause de 4 µs
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delayMicroseconds(4);
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digitalWrite(TriggerPin, HIGH); //Génération de 10 µs
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delayMicroseconds(10);
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digitalWrite(TriggerPin, LOW); //Pause
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duration = pulseIn(EchoPin, HIGH); // lecture
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distanceCm = duration * 10 / 292/ 2; // Vitesse du son converti en cm
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return distanceCm;
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}
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