Distance Detector with a Buzzer, LED's and LCD

Hi, I'm novice in this language, but i have to do a project wich includes an ultrasonic sensor, HC-SR04 . The project is similar with this one https://www.youtube.com/watch?v=1OOPsGeDk0E , but instead of using PING)) sensor i have to use HC-SR04. Can you guide me with all steps I have to modify in schematic and code ? Thank you very much!

L.E: Also, I can make my project as this one http://www.instructables.com/id/Arduino-Distance-Detector-with-a-Buzzer-and-LEDs/step7/The-Code/ but also i have to connect a LCD 16x2 .

You "have" to do this project?

Apart from YouTube, what have you found?

I found many projects using that type of sensor, but some of them don't display the measured distance on lcd, and others don't have led or buzzer

There is example code for all of these things ; what have you tried? Did it do what you wanted? If it didn't, by how far from your expectations did it fall?

I thought a "project" was something that you make, not just find somewhere.

AWOL:
There is example code for all of these things ; what have you tried?
Did it do what you wanted?
If it didn’t, by how far from your expectations did it fall?

In the 2nd example it worked as it should, but i also want to display the measured distance on LCD too …

Stefmeister: In the 2nd example it worked as it should, but i also want to display the measured distance on LCD too ..

So, display the measured distance on the LCD too. Come back if you have a specific problem with it.

I'm pretty sure there's a Hello World example for an LCD. If you can Hello World, you can display a variable.