From d51ff806cc203f341ca8c6b5bca4417053c41603 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Abonnel?= <github.patrick@acemail.fr>
Date: Sun, 15 May 2022 21:48:32 +0000
Subject: [PATCH] Update sketchDistanceSerial-Ultrasonic.ino

---
 arduino/sketchDistanceSerial-Ultrasonic.ino | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/arduino/sketchDistanceSerial-Ultrasonic.ino b/arduino/sketchDistanceSerial-Ultrasonic.ino
index df14921..9256f1c 100644
--- a/arduino/sketchDistanceSerial-Ultrasonic.ino
+++ b/arduino/sketchDistanceSerial-Ultrasonic.ino
@@ -1,13 +1,20 @@
+
 #include "Ultrasonic.h"
-Ultrasonic sensor(8,9); // Trig et Echo
+
+#define echoPin 9 // attach pin D2 Arduino to pin Echo of HC-SR04
+#define trigPin 8 //attach pin D3 Arduino to pin Trig of HC-SR04
+
+Ultrasonic sensor(trigPin,echoPin); // Trig et Echo
  
 // defines variables
 int distance; // variable for the distance measurement
 
 void setup() {
-  Serial.begin(9600);
-  pinMode (11, OUTPUT);
-  pinMode (12, OUTPUT);
+  Serial.begin(9600);trigPin as an OUTPUT
+  pinMode(echoPin, INPUT); // Sets the echoPin as an INPUT
+  Serial.begin(9600); // // Serial Communication is starting with 9600 of baudrate speed
+  Serial.println("Ultrasonic Sensor HC-SR04 Test"); // print some text in Serial Monitor
+  Serial.println("with Arduino UNO R3 and Ultrasonic.h");
 }
 
 void loop () {