c4726d68
 aknockae
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/* Utilisation du capteur Ultrason HC-SR04 */
// définition des broches utilisées
int trigA = 7;
int echoA = 6;
int trigB = 7;
int echoB = 5;
long timeAB;
long timeBA;
long C;
long V;
long speedofsoundmps = 340;
void setup()
{
pinMode(trigA, OUTPUT);
digitalWrite(trigA, LOW);
pinMode(echoA, INPUT);
pinMode(trigB, OUTPUT);
digitalWrite(trigB, LOW);
pinMode(echoB, INPUT);
Serial.begin(9600);
}
void loop()
{
digitalWrite(trigA, LOW);
delayMicroseconds(2);
digitalWrite(trigA, HIGH);
delayMicroseconds(10);
digitalWrite(trigA, LOW);
timeAB = pulseIn(echoB, HIGH);
//timeAB = timeAB-40;
//Serial.println("Temps AB : ");
//Serial.println(timeAB);
delay(100);
digitalWrite(trigB, LOW);
delayMicroseconds(2);
digitalWrite(trigB, HIGH);
delayMicroseconds(10);
digitalWrite(trigB, LOW);
timeBA = pulseIn(echoA, HIGH);
//timeBA = timeBA-40;
//Serial.println("Temps BA : ");
//Serial.println(timeBA);
C = (0.45/2)*((1e6/timeAB)+(1e6/timeBA));
V = (0.45/2)*((1e6/timeAB)-(1e6/timeBA));
//Serial.println("Vitesse c : ");
//Serial.println(C);
//Serial.println() ;
Serial.println("Vitesse du vent V : ");
Serial.println(V);
Serial.println();
//Serial.println();
//Serial.println();
delay(1000);
}
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