'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
The Source for Renewable Energy -
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