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Project material

1- Arduino UNO

2- HC-SR04 Ultrasonik Sensor

3- LCD display

4- Breadboard

Code

#include
LiquidCrystal LCD(10, 9, 5, 4, 3, 2); int trigPin=13; //Sensor Trip pin connected to Arduino pin 13 int echoPin=11; //Sensor Echo pin connected to Arduino pin 11 int myCounter=0; //declare your variable myCounter and set to 0 int servoControlPin=6; //Servo control line is connected to pin 6 float pingTime; //time for ping to travel from sensor to target and return float targetDistance; //Distance to Target in inches float speedOfSound=776.5; //Speed of sound in miles per hour when temp is 77 degrees. void setup() { Serial.begin(9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); LCD.begin(16,2); //Tell Arduino to start your 16 column 2 row LCD LCD.setCursor(0,0); //Set LCD cursor to upper left corner, column 0, row 0 LCD.print("Target Distance:"); //Print Message on First Row } void loop() { digitalWrite(trigPin, LOW); //Set trigger pin low delayMicroseconds(2000); //Let signal settle digitalWrite(trigPin, HIGH); //Set trigPin high delayMicroseconds(15); //Delay in high state digitalWrite(trigPin, LOW); //ping has now been sent delayMicroseconds(10); //Delay in high state pingTime = pulseIn(echoPin, HIGH); //pingTime is presented in microceconds pingTime=pingTime/1000000; //convert pingTime to seconds by dividing by 1000000 (microseconds in a second) pingTime=pingTime/3600; //convert pingtime to hourse by dividing by 3600 (seconds in an hour) targetDistance= speedOfSound * pingTime; //This will be in miles, since speed of sound was miles per hour targetDistance=targetDistance/2; //Remember ping travels to target and back from target, so you must divide by 2 for actual target distance. targetDistance= targetDistance*63360; //Convert miles to inches by multipling by 63360 (inches per mile) LCD.setCursor(0,1); //Set cursor to first column of second row LCD.print(" "); //Print blanks to clear the row LCD.setCursor(0,1); //Set Cursor again to first column of second row LCD.print(targetDistance); //Print measured distance LCD.print(" inches"); //Print your units. delay(250); //pause to let things settle }


Project code detail : http://www.projehocam.com/ultrasonik-sensor-lcd-mesafe-olcumu/

<p>Arduino: 1.8.0 (Windows 8.1), Board: &quot;Arduino/Genuino Uno&quot;</p><p>F:\arduino-1.0.5-r2\ultrasonic_sensor\ultrasonic_sensor.ino: In function 'void setup()':</p><p>ultrasonic_sensor:16: error: 'echoPin' was not declared in this scope</p><p> pinMode(echoPin, INPUT); </p><p> ^</p><p>F:\arduino-1.0.5-r2\ultrasonic_sensor\ultrasonic_sensor.ino: In function 'void loop()':</p><p>ultrasonic_sensor:35: error: 'echoPin' was not declared in this scope</p><p> duration = pulseIn(echoPin, HIGH);</p><p> ^</p><p>exit status 1<br>'echoPin' was not declared in this scope</p><p>This report would have more information with<br>&quot;Show verbose output during compilation&quot;<br>option enabled in File -&gt; Preferences.</p><p>please provide some solution to this problem</p>
<p>whats that blue colored thing ? Is it a preset ?</p><p>If yes ,then whats the value?</p>
<p>Give me some Detailed Description about the LCD Display shown in the above pic.. I need to find it here in INDIA.. Name the Specification of that LCD !</p>
amazon India has a large variety of arduino accessories including this LCD but the shipping charges are nearly equal to the product ?
It's a 1602 LCD display..<br><br>That means 16 columns 2 rows<br>Equals sixteen characters &times; two lines <br>Equals 32 characters in total<br><br>Here... I live in India... <br><br>Hey! Check-out Excel Tech 16x2 LCD Display on Snapdeal at http://m.snapdeal.com/product/Excel+Tech+16x2+LCD+Display/620291504441?&amp;utm_campaign=AppShare_productShare&amp;viewinapp=1
<p>Thanks a Lot!</p>
<p>hi Murat </p><p>How can I change to metric unit for distance measuring ?</p>

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Bio: #Maker #Mechanical Engineer #Proje Hocam Founder
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