Subject:
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RE: Brainstorms
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 9 Aug 2002 02:24:14 GMT
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Original-From:
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Bruce Powell <bdp@optushome.comSTOPSPAMMERS.au>
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Reply-To:
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<bdp@optushome.com.[SayNoToSpam]au>
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Viewed:
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842 times
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Elijah has IMHO a nice starting point for a series of modules for Robotics.
My extensions, would be based upon a common addressing system ala Dalas
Semi 1 wire. This allows for simple stacking of 1wire devices.
Compiler/Interpreter keeping track of devices and their unique Serial #s.
A series of Motors with a pico controller & driver IC, to simplfy use and
protect from over current etc. (Sizes Pico,small,med,large) 3Wire interface,
Gnd,Pwr,Control. Control could be Bluetooth or I2C or Dallas Semi 1 Wire
(Now Maxim).
A Series of Sensors (1/2/3...) per Block using Bluetooth/ 1Wire interface)
Logically grouped.
A set of Controllers (CPU/RAM/ROM) as a single Module. Add on Modules for
more Ram/EEPROM/Flash. Don't seperate the CPU/ROM/RAM too much complications
for the basic unit. Definitly allow to be augmented though. Has multiple
1wire /I2C busses built in.
A Display Module series (Simple text -->>> Colour graphics)
Input Modules -- Switches, knobs, dials.
Output Modules -- Lights, etc.
I/O Modules Serial, I/R, Bluetooth, Ethernet......
ugh what a list. My basis, is Simple devices that can be clearly documented,
with some basic intelligence so they can be treated as Objects in
Programming & Putting them together. If these simple devices can't
economically support some basic intelligence, then add a CPU block who's job
it is to provide that basic intelligence, ie a sensor controller.
anyways, just a few of my thoughts, as someone was asking for.
Bruce
> -----Original Message-----
> From: Elijah Meeker [mailto:elijah@tds.net]
> Sent: Friday, August 09, 2002 1:48 PM
> To: lego-robotics@crynwr.com
> Subject: Re: Brainstorms
>
>
> I'd really love to have the time to do this right, with links
> to all the
> neat articles I have been finding for lunch time reading, and to be up
> todate on the technology involved. But I will be lucky if I
> can get this
> written befoe I am required to be co-pilot in my son's next pod race.
> This lunchtime reading has been about robotic eels, snakes,
> elephant trunks
> as a model for manipulators, reconfigurable robots all sorts
> of cool stuff.
> One of the common threads through most of them is small, weak and dumb
> modules, i.e. minimal i/o and processing, but lots and lots
> of modules.
> In my ideal robotics world, er, I /think/, each module would
> have 2 sensor
> inputs and one motor out. Each would take the identity of
> "the sensor before
> me plus one" plugged in to a backbone (which would also
> supply power) and
> begin listening for messages for the motor and pumping
> messages from the
> sensors.
> Power could be plugged in at any point along the backbone.
> The processor
> module, which would have the motor message pump and sensor
> listener, would
> attach to one end of the backbone and have a connector for
> the interface
> module. The interface module would have two versions, one
> would be a full
> blown LCD/buttons/wireless module and the other would have
> just the wireless
> interface. That way when development is done you aren't
> forced to carry
> around the bulk of the full interface.
> Java or C. whatever you like.
>
> As I weighed in on purism and absolutism a few weeks ago I
> will just be off
> to copilot that pod...
>
> Elijah
>
>
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Message has 2 Replies:
 | | Re: Brainstorms
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| (...) Ooh - I'd forgotten the Dallas Semiconducter 1-wire interface - that would work out really well. Do Dallas still make a bunch of interesting devices for that standard? (...) I2C has ROM and RAM devices that plug right into the I2C bus. I think (...) (22 years ago, 9-Aug-02, to lugnet.robotics)
| | | Re: Brainstorms
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| I2C devices are *tiny* because they don't need many pins. If you look at the CPU chip inside the RCX, it's 4cm long and 2cm wide - that's because it has thirty-some I/O pins on it. An I2C device typically needs two pins for power and ground, a (...) (22 years ago, 9-Aug-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Brainstorms
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| I'd really love to have the time to do this right, with links to all the neat articles I have been finding for lunch time reading, and to be up todate on the technology involved. But I will be lucky if I can get this written befoe I am required to (...) (22 years ago, 9-Aug-02, to lugnet.robotics)
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