Subject:
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Re: The Handyboard (was Re: RCX 2.0 -- ideas.)
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 4 Jan 1999 19:46:04 GMT
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Original-From:
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Nick Taylor <ntaylor@iname.com>
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Viewed:
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1409 times
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There are two very easy methods of making LEGO compatible 9V
connectors.
1. Use Dacta #779897 9V Connecting Leads (3 pieces) @ $12.25.
Cut the leads to the appropriate length for your use. Break a male
0.100" strip header (DigiKey #929834-01-36-ND) into 3 or 4 pin
sections as required and solder to the LEGO cable as shown in the
HandyBoard instructions.
2. Use LEGO #5037 Electric Plates (9 peices) @ $6.75. Use your
own wire, solder to the LEGO plates and the header pins.
Phones:
LEGO S@H: 800.453.4652
Dacta: 800.362.4308
DigiKey: 800.344.4539
As for "encasing the HandyBoard in a LEGO brick of sorts," I
have found it preferable to build my robots so that the RCX or
the HandyBoard is easily removeable. This leads to building a
supporting frame which the RCX or HB can be slipped into
without requiring any disassembly of the robot. The RCX is
12X8 studs and the HB is 14X10 studs.
Another reason for adding a HB to your robot family: Fred
Martin has within the past few days released the HB expansion
board which will allow easier use of up to 4 LEGO active sensors
as well as adding 10 additional analog sensor inputs, 9 digital
outputs, and 6 servo motor outputs.
Enjoy!
- - - Nick - - -
Mark Tarrabain wrote:
> Rob Visscher wrote:
>
> > Multiple ports are possible if you buy or build a Handyboard. Check out this
> > URL.
> > http://lcs.www.media.mit.edu/groups/el/projects/handy-board/
>
> The Handyboard is, indeed, a very cool way to control robots. Personally, I am
> more than a little impressed by it. Why didn't LEGO base their RCX unit on it?
> Or why not the MIT Programmable Brick? (It at least had more I/O ports than the
> RCX does) The 6811 microcontroller is, from what I remember from electronics
> class, an awesome unit to work with. It even has a good share of software
> development tools available for it. Ah well... I guess that's water under the
> bridge now, as it were.
>
> My *only* beef about the Handyboard is that Fred Martin does not explain how to
> convert the bare motherboard into a more LEGO modular unit (with LEGO electric
> connectors, and being encased in a "LEGO brick" of sorts). The Handyboard just
> does not lend itself superbly well to incorporation with LEGO's modular bricks
> without making substantial cosmetic modifications, the full nature of which may
> not be entirely obvious to people who merely purchase a ready-made Handyboard
> rather than buying the build-it-yourself kit. Isn't the point of LEGO to be able
> to build, dismantle, and reassemble in whatever way the imagination can dream
> up? I'm not suggesting that the Handyboard be reduced to a LEGO-only device, but
> rather that there should be some relatively easy to understand instructions in
> how to adapt the board for that kind of use. There are probably many ways it
> could be done, of course, but it'd sure be nice to have specific instructions on
> how to do it at least one way. If there were, I'd almost certainly be snatching
> one up right after my next paycheck.
>
> > > Mark
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: The Handyboard (was Re: RCX 2.0 -- ideas.)
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| (...) Encasing it in a LEGO brick would make it far more resilient and reduce the chances of dust, etc, contaminating the circuit board. Further, if it were pluggable into regular LEGO bricks, the model would not *demand* construction oriented (...) (25 years ago, 4-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | The Handyboard (was Re: RCX 2.0 -- ideas.)
|
| (...) more than a little impressed by it. Why didn't LEGO base their RCX unit on it? Or why not the MIT Programmable Brick? (It at least had more I/O ports than the RCX does) The 6811 microcontroller is, from what I remember from electronics class, (...) (25 years ago, 4-Jan-99, to lugnet.robotics)
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