first commit

DetecteurPresence/DetecteurPresence.ino

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+const int TrigPin = 2;
+const int EchoPin = 3;
+float cm;
+void setup()
+{
+Serial.begin(9600);
+pinMode(TrigPin, OUTPUT);
+pinMode(EchoPin, INPUT);
+}
+void loop()
+{
+digitalWrite(TrigPin, LOW); //Low high and low level take a short time to TrigPin pulse
+delayMicroseconds(2);
+digitalWrite(TrigPin, HIGH);
+delayMicroseconds(10);
+digitalWrite(TrigPin, LOW);
+
+cm = pulseIn(EchoPin, HIGH) / 58.0; //Echo time conversion into cm
+cm = (int(cm * 100.0)) / 100.0; //Keep two decimal places
+Serial.print(cm);
+Serial.print("cm");
+Serial.println();
+delay(1000);
+}