Post by thread:Sonar Ranging with Radio Shack $24.95 electronic t

>>I found an even simpler way of getting sonar range data. Go to Radio Shack >>and buy their electronic tape measure for $24.95. >I thought about hacking that too. Let me know how it works out. >I particularly interested in the minimum distance you can measure. >Michael J. Schreck The minimum distance is 2 feet or 0.60 meters. The LCD display will display an error message for any distance below 2 feet. This is most probably due to a time delay required after pulsing the ultrasonic element to allow it to settle before looking for the reflected wave. The repeatability is very stable at distances above 2 feet however. - John Loch spam_OUTjohnlochTakeThisOuTmtt.com The Source for Renewable Energy - http://www.mtt.com/theSource/renewableEnergy