From e354dcb03bbfa252cb5d2747600475b2e8007756 Mon Sep 17 00:00:00 2001
From: Darshan-salecha <56079203+Darshan-salecha@users.noreply.github.com>
Date: Sat, 12 Oct 2019 00:27:35 +0530
Subject: [PATCH] Create ultrasonic.ino

---
 ultrasonic.ino | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 ultrasonic.ino

diff --git a/ultrasonic.ino b/ultrasonic.ino
new file mode 100644
index 0000000..e3ba969
--- /dev/null
+++ b/ultrasonic.ino
@@ -0,0 +1,42 @@
+/*
+* Ultrasonic Sensor HC-SR04 and Arduino Tutorial
+*
+* by Dejan Nedelkovski,
+* www.HowToMechatronics.com
+*
+*/
+
+// defines pins numbers
+const int trigPin = 9;
+const int echoPin = 10;
+
+// defines variables
+long duration;
+int distance;
+
+void setup() {
+pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
+pinMode(echoPin, INPUT); // Sets the echoPin as an Input
+Serial.begin(9600); // Starts the serial communication
+}
+
+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 microseconds
+duration = pulseIn(echoPin, HIGH);
+
+// Calculating the distance
+distance= duration*0.034/2;
+
+// Prints the distance on the Serial Monitor
+Serial.print("Distance: ");
+Serial.println(distance);
+}