This is not supposed to replace accurate measuring tools this is just a fun arduino project that you can easily make at home or at a local makerspace.
Step 1: Wire the LCD
Step 2: Wire Ultrasonic Sensor
Step 3: Download NewPing Library
Download the newping library: https://code.google.com/p/arduino-new-ping/
Drag the folder into the libraries folder by going: Documents --> Arduino --> and libraries. After that change the name to "Newping"
Step 4: Upload the Code
Upload this code to your arduino board:
Step 5: Finished
Please vote for this in the contests favourite it subscribe and give some ideas on some instructables that I can do.