Subject:
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Re: SONARS GALORE!!!
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sat, 22 Mar 1997 12:07:40 GMT
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Original-From:
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Pandit Panburana <PDP@IX.nomorespamNETCOM.COM>
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Viewed:
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2326 times
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HI Adam,
Please post your schematic as you mentioned.
I am interrested.
Thank you,
-Pandit
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> From: Adam <adam@ring.zenox.com>
> To: handy board <handyboard@media.mit.edu>
> Subject: SONARS GALORE!!!
> Date: Friday, March 21, 1997 12:40 PM
>
>
> For those who are interested.....
>
> I have recently developed a way of signalling 4 sonars
> from the HB using a logical switching circuit controlled
> by one ranging board and another board developed to switch
> which transducer is being signalled by the ranging board.
>
> The NEW board is simply a 7405 (open collector hex invertor)
> with 4 680ohm resistors, 4 IRF820 MOSFETs and some connectors
> to hook everything together. If anyone is interested. Let me
> know and I'll post the schematic. It's actually very simple.
>
> I figure with a 4bit encoder, 16 transducers could be controlled
> from the SPI. Even further, the #9 digital output could be used
> to switch between 2 4bit encoders and 32 transducers could be
> controlled. All this with the use of only 1 ranging unit.
> Polaroid sells the transducers in boxes 10 (min. order)
>
> Have fun.
>
> ----------------------------------------------------------
> Adam B. Cox check out my web page
> Computer Engineer http://www.zenox.com/~adam
> Zenox Communications Corp. vmail: 416-241-7000 (x224)
> ----------------------------------------------------------
>
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