Short-range sonar with bs2

[okemoabe]

I just bought myself this book from Parallax; 'PROGRAMMING AND CUSTOMISING THE BASIC STAMP COMPUTER' by Scot Edwards. For my own practice on Basic Stamps, I got interested on designing the exact short-range sonar illustrated from page 167-175. I have mounted everything the way it is on breadboard but when testing, the time-of-flight displayed in the computer is always zero and i am kind of stuck. The oscillator is testing well though.

Can someone help me diagnose the possible sources of errors quickly please... i really wanted to go through this but i am getting disspointed

[Franklin]

Since most of us don't have the book it would help if you drew up a schematic of the circuit and attached your code to your next post. If you use the attachment manager you can attach the actual file you are loading to the stamp.

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- Stephen

[okemoabe]

I·have attached in this mail, the code for this project and you can see the circuits by clicking on this link....·http://www.reconnsworld.com/bs2sonar.html

hope i managed to attach well here...

[okemoabe]

p ...... l ..... e ...... a ...... s ..... e

[JD]

Okemoabe,

Are you using the schematic that is on the web page with the parts·listed?

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Respectfully,


Joshua Donelson
www.parallax.com (http://www.parallax.com)

[okemoabe]

yes, everything as it is...

[okemoabe]

hurray...!!! managed at last, thank you for trying to work with me though.......