arduino.c

arduino

@@ -0,0 +1,27 @@
+// defines pins numbers
+const int trigPin =9;
+const int echoPin =10;
+// define variables
+long duration;
+int distance;
+void setup()
+{ pinMode(trigPin, OUTPUT);
+pinMode(echoPin, INPUT);
+Serial.begin(9600);
+}
+void loop()
+{
+  //clears the trigPin
+  digitalWrite(trigPin, LOW);
+  delayMicroseconds(2);
+  //Sets the trigPin on HIGH state for 10 micro seconds
+  digitalWrite(trigPin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, LOW);
+  //Reads the echoPin, returns the sound wave travel time in microeseconds
+  duration= pulseIn(echoPin, HIGH);
+  //calculating the distance
+  distance= duration*0.034/2;
+  //Prints the distance on the Serila monitor
+  Serial.println(distance);
+}