This tutorial takes you step-by-step through creating a simple device for measuring distances. The measurements are made with an ultrasonic sensor connected to an arduino microcontroller. The results are displayed on an LCD screen. More details can be found at http://www.toptechboy.com and see Arduino Lesson 20.
I am Paul McWhorter from toptechboy.com and I will be putting together a series of tutorials on use of the Arduino microcontroller.