To add some extra thought to this, how would you go about measuring larger
distances than 200 inches, say 200 yards electronically (using a PIC of
course as part of the circuit)?

Kieran


-----Original Message-----
From: Octavio Nogueira <nogueira@MANDIC.COM.BR>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: 22 October 1997 14:19
Subject: Distance measurement



>Hi to All,
>
>I'm trying to do a ultrasound distance measurement with PIC, I don't want
>to use the Polaroid module. Does anyone has some experience to share?
>I know how to generate the transmition pulse but I need help in the
>receiver part.
>The range will be from 20 to 200 inches.
>
>Best regards,
>
>Octavio
>======================================================
>Octavio Nogueira  - e-mail:   nogueira@mandic.com.br
>http://www.geocities.com/~oct_nogueira
>"ProPic" Production PIC Programmer Windows under US$20
>======================================================