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Subject: 
Re: RCX IR Transceiver and Sensor Port Circuits
Newsgroups: 
lugnet.robotics
Date: 
Wed, 22 Dec 2004 20:26:56 GMT
Viewed: 
879 times
  
In lugnet.robotics, "Lamar" <r_ledford@comcast.net> wrote:
I for one would look at your work if posted on some web site.

Lamar

Mark Bellis wrote:

I've not seen much online in the way of circuits of the RCX transceiver or
parts
of the RCX itself.  Everyone seems too busy reprogramming it!

I have dismantled the units and traced the connections, found out the
pin-outs
and equivalent components for each semiconductor device inside, and drawn
a
circuit diagram of the transceiver and the circuit for an RCX sensor port
(by
reading across between the three port circuits).

The semiconductors I've researched are also used in other Lego electronic
units,
so diagrams of the Control Center and Bar Code Pilot could also be drawn.

Would anyone be interested if I put my diagrams online, or has someone
beaten me
to it?

Perhaps this would help people make their own devices to interface with
the RCX.

For legal reasons I hasten to add that the diagrams are unofficial so I
cannot
guarantee accuracy, nor will I ever seek to make any gain from it.  I've
used my
common sense and my degree in electronics to do with the RCX what I
sometimes do
with broken TVs or videos - take them apart to see how they work!  It is
purely
for enhancing the research of RCX enthusiasts and helping us to get more
out of
a great product.

Mark

I'll see if I can get the circuits drawn up as jpegs and post them on my
Brickshelf.  Can't promise a schedule though :-)

The IR Transceiver will be first, followed by a sensor port circuit.  The other
units are just possible future projects for now.

Mark



Message has 1 Reply:
  Re: RCX IR Transceiver and Sensor Port Circuits
 
Hi Mark, (...) I would also like to see your diagrams. (...) Please use GIF or PNG, jpegs are not so good for diagrams. Jürgen (20 years ago, 23-Dec-04, to lugnet.robotics)

Message is in Reply To:
  Re: RCX IR Transceiver and Sensor Port Circuits
 
I for one would look at your work if posted on some web site. Lamar ----- Original Message ----- From: "Mark Bellis" <mark.bellis@tiscali.co.uk> To: <lego-robotics@crynwr.com> Sent: Friday, December 17, 2004 9:49 AM Subject: RCX IR Transceiver and (...) (20 years ago, 21-Dec-04, to lugnet.robotics)

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