DIY ultrasonic sensor or assemble 400ST/RT to BS2 ??

vldo

Hello All

is it posible to mount a simple ultrasonic transducer & receiver
to BS2 instead of the Ping sensor ?
I have googled for solutions and I still can't get it clear enough.
But as I understand I need something to generate the high frequency signal.
So can this realy be done with the same BS2 instead of the pic (or other) mounted
in the Ping sensor

- So in BS2 I'd put the signal on O pin & the echo on the I pin ( ?)

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my main parts :

Basic stamp 2

400ST tranducer
400Rt receiver

here are a couple of photos of similar sensors
SE 400ST 460
SE 400RT 460
http://www.yesinter.net/semrf/semrf67.jpg
http://www.yesinter.net/semrf/semrf70.jpg

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I usualy dont find parts in my country [noparse]:)[/noparse]
Thanks

Mike Green

Here's a simple PING-like sensor I found on an internet search. Unfortunately for your plans, the BS2 is not capable of doing the signal processing needed. It's not fast enough and it doesn't have enough memory. You could add some more external hardware to generate the ultrasonic pulse and you could add some analog hardware for the receive side to amplify and condition the signal. You could certainly try the PIC mentioned in this article since code is provided, but you might as well get a PING unless your goal is learning how to make an ultrasonic distance sensor.

www.micro-examples.com/public/microex-navig/doc/090-ultrasonic-ranger.html

vldo

hello, Mike,
thanks for the answer, that whas a great help!

But I think it will be much simpler fore me to make it with the IR photo diodes,
(I all ready found some tutor's on that) as I'm looking for a cheep version.
Ennyway, I'm willing to make some kynd of distance sensor that
generates a mooving point of the surface sensed. So I can generate a
surface line - In short, it will have to be a surface scanner, that draws somekynd of surface line scope, on my pc screen.

Now I'm trying to debug "BS2" in "Pure data" software, http://puredata.info
so I can genearte the graphics.

thanks agayn