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Subject: 
Re: RCX 2.0 -- ideas.
Newsgroups: 
lugnet.robotics
Date: 
Sun, 3 Jan 1999 16:13:34 GMT
Original-From: 
Wouter Cloetens <(wcloeten@raleigh.)nospam(ibm.com)>
Viewed: 
1445 times
  
On Thu, 31 Dec 1998 14:15:51 GMT, Jakob Nebeker wrote:

1.  More connections.  At least 4 outputs and 4 inputs.  The way it is
right now, a robot that drives around can't really do much else, given
that there is only one output to spare for a light or a motor.  Another
inut would also be nice, but not as badly needed as the output.

How about an I2C bus, AFAIK an industry standard, low-cost serial,
daisy-chain bus (connect one piece to the next, from there on to the
next etc) on which you can address a large number of devices (input and
output), including displays, keyboards, other RCX units, PCs (via the
parallel port) etc etc...

A standard RS232 connection to the RCX would be useful too. I drained
the 9V battery of the IR tower in one week - I *hate* throwing away
money and binning (in the recycle bin of course, but still) polluting
things like batteries.

A standard IRDA interface would be neat too, so I can talk to the thing
with my Psion Series 5 at 115K2 baud.

2.  Smaller size.
3.  Lighter.

Make the batteries an optional add-on in a lego-style brick, in case
you use a power supply. Even better would be a Lithium battery, of
course.

bfn, Wouter
Disclaimer: my employer doesn't know what I'm talking about and that's
a good thing (tm).

--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message has 2 Replies:
  Re: RCX 2.0 -- ideas.
 
(...) What about connecting a small 9V DC power supply to the IR tower? Get one cheap at e.g. RadioShack. Why use batteries when the IR tower is stationary... Just make sure you get the polarity right when you solder the wires. Still, I agree it (...) (26 years ago, 3-Jan-99, to lugnet.robotics)
  RE: RCX 2.0 -- ideas.
 
(...) This is a brilliant idea, I had wondered about the practicality of something like this myself, but it has to be done by lego to satisfy us purists. (...) You could have a whole range of lego "bricks" that plug together to form the RCX, (...) (26 years ago, 4-Jan-99, to lugnet.robotics)

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