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Subject: 
Duplex Comms with RCX
Newsgroups: 
lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc
Date: 
Wed, 26 Apr 2000 08:03:50 GMT
Viewed: 
4350 times
  
Hi

I am sure this has been done many times before, but I am having trouble
confirming information.

I wish to purchase the RIS 1.5. But before I do I need to be sure that I
can communicate with a running program on the RCX and that the RCX can
communicate with the PC. I will only be wanting to send and receive
simple commands.

Is this possible?

I think so.

If it is, it would seem that using NQC is the best way to start.

What issues am I likely to encounter? Range of the IR comms? Do the
sender and receiver have to line up, or is line of sight sufficient?

Experiences, hints and tips would be gratefully received.

For information - we want to build a simple model robot, to be
controlled by a PC. The robot will be used as a substitute for the real
thing during development and testing. We are concentrating the
development on the mission planning and control software. However
another group are developing the real robot - all I can say is that it
will use a vacuum seal to attach to vertical surfaces and drive
around...

Cheerio
James
--
James Hammond
IT Innovation Centre
2 Venture Road
Chilworth Science Park
Southampton, SO16 7NP, UK

tel: +44 23 8076 0834
fax: +44 23 8076 0833

mailto:jsh@it-innovation.soton.ac.uk
http://www.it-innovation.soton.ac.uk/



Message has 3 Replies:
  Re: Duplex Comms with RCX
 
It appears Roblab 2.0 would also be an alternative for your project. Robolab has two different direct modes to control the RCX, one of which is using a remote connection like the Internet. Depending on your direct control requirements, you may want (...) (25 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
  Re: Duplex Comms with RCX
 
"James Hammond" <jsh@it-innovation.soton.ac.uk> wrote in message news:3906A2E6.6A40E0...n.ac.uk... (...) Yes it can. There is a standard RCX opcode for sending single byte messages, and you can always use multiple of these commands for more complex (...) (25 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
  Re: Duplex Comms with RCX
 
(...) Yes. Note that it is only half-duplex. You probably expected that. (...) The biggest issue you might run into is the fact that the IR tower used by the PC times out if it doesn't transmit anything for a few seconds. Unless you have constant (...) (25 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)

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