Subject:
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Re: [Q] power supply for polaroid sonar
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 19 Jan 1998 23:54:00 GMT
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Original-From:
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MAR ERICSON <mar@!IHateSpam!cooper.edu>
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Viewed:
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1918 times
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I haven't seen the schematic you're refering to but I believe you can use
the +5V bus already on a standard HB. Just connect your PWR/GND to one of
those headers "below" one of the A/D inputs. I did this before and it
worked. Apparrently, the 1A +5V regulator can handle the 2A surges the
sensor loads.
-----------
ericson mar
Master of Engineering Candidate
Project: Mobile Robotics
mar@cooper.edu
(212)353-4356
Department of Mechanical Engineering
The Cooper Union for the Advancement of Science and Art
-------------------------------------------------------
On Mon, 19 Jan 1998, Yoni Garbourg wrote:
>
> In the Handyboard homepage under 6500 polaroid sonar libraries, there is a
> great illustration (BRAVO!) that depicts the connections from the HB to
> the module that operates the sonar itself. The power supply to the module
> (which should be around +5V) is connected via the motor power supply
> hookup with 6 diodes in series to reduce the 9V to the required range.
>
> My question is: can I use any +5V / ground connection on the HB
> instead of the motor power supply (Our supply is an external one and
> uses almost 30V and rather than connecting 30-some diodes in series... you
> get the point) ???
>
> Also, Can I use D2 and D3 to control a second sonar module without too
> many changes?
>
> Thank you,
>
> Yoni Garbourg
>
>
>
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Message has 1 Reply:
 | | Re: [Q] power supply for polaroid sonar
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| (...) I haven't tried this on the HB; but I have with other processors. I had problems with the sonar ping resetting the processor at times, as well as digital noise on the power supply bus causing false echo returns at long distances (as the (...) (27 years ago, 20-Jan-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | [Q] power supply for polaroid sonar
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| In the Handyboard homepage under 6500 polaroid sonar libraries, there is a great illustration (BRAVO!) that depicts the connections from the HB to the module that operates the sonar itself. The power supply to the module (which should be around +5V) (...) (27 years ago, 19-Jan-98, to lugnet.robotics.handyboard)
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