 | | Re: Use PC's IR port instead of IR tower?
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The basic difference between PCs/PalmPilots/WinCE IR ports and the RCX is a different physical transmission/modulation protocol. In the PC etc case the commonly used format is described by the IrDa standard (www.irda.org) where seperate IR pulses (...) (26 years ago, 12-Nov-99, to lugnet.robotics.rcx)
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| | Ultimate Resume Item
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Robot Builder Intern Position Available Firstly, my apologies for posting a job advert in this group. Gentle redirection to a more appropriate newsgroup is welcome. We are a 250-person company with a very successful product which integrates many (...) (26 years ago, 12-Nov-99, to lugnet.robotics.rcx)
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| | Re: Constructopedia v1.0
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Search this newsgroup. I remember seeing a link for a site that had the entire constructopedia from v1.0 scanned in full color and full size. Jason (...) (26 years ago, 11-Nov-99, to lugnet.robotics.rcx)
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| | Constructopedia v1.0
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I have just purchased a RIS v1.5 and am very pleased with it. I would like to obtain the v1.0 constuctopedia. Does anyone know of a place that would sell JUST the constructopedia? Maybe Shop@Home? Thanks for any help John Reichel (...) (26 years ago, 11-Nov-99, to lugnet.robotics.rcx)
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| | Re: RIS 1.0 to 1.5 software upgrade
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OOPS! I missed the 4129418 "Robotics Invention System 1.5 User Guide" English, 27 pages Sorry Rick Rick Kirkwood <dynamics@mediaone.net> wrote in message news:00e101bf2bad$cb...one.net... (...) LEGO) (...) full (...) a (...) (26 years ago, 10-Nov-99, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: RIS 1.0 to 1.5 software upgrade
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I received my free (+$3.95 P&H) upgrade kit today and was pleasantly surprised ( or should that be AMAZED, Y-A-H-O-O-O-O!!!! and THANK YOU LEGO) to see that was NOT just a software upgrade, as I had thought, but the full #3803 "RIS 1.5 UPGRADE KIT" (...) (26 years ago, 10-Nov-99, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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Wes, I'm sorry; I missed the Rcx Motor info... If the Rcx Motors start/run with 6V but don't work with the Rcx Outputs, something is 'Funny'. The Rcx, with decent batteries, puts out about 7 volts to a running Rcx motor (full power setting). I'm not (...) (26 years ago, 10-Nov-99, to lugnet.robotics.rcx)
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| | RCX Power connector
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Hi all, If you still want to get a (second) RCX with a power connector, order online from www.legoworldshop.com. Make sure you order the RIS 1.0. Lego will throw in the upgrade to 1.5 in for free, so you still get the same set. I just got mine. I (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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(...) That sounds like a good approach. (...) As I stated before - I'm using the motors that came with the RCX. -Wes (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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The simple thing would be to do the short delay in the software. Identical relays usually 'make' faster than they 'break' due to energy stored in the magnetic circuit. It's hard to do this without active components. If you use a typical small (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: Communication with PC using NQC
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(...) /Vlad (26 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: Communication with PC using NQC
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(...) You might find the following helpful... (URL) again, you might not. jack j-perdue@tamu.edu (26 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: Communication with PC using NQC
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(...) Taking the example of the maze-walker, the PC software should be able to keep track of the position of the robot and direct it through the maze. (...) Yes, I looked at the code and it only needs a higher-level wrapper. (...) Yes, it does, (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: RCX motor voltage
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(...) I am using the motors that came with the RCX. (...) Hmmm - do you propose to ensure the delay in the relay circuit or programmatically? If in the circuit, how? (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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Wes, relays would work pretty well. (Still, how much current do your motors draw???) The LEGO motors draw about .35 Amps (350 Milliamperes) You could connect two 5V coil relays , each with a diode in series with the coil, connected oppositely to (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: Communication with PC using NQC
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(...) Could you be more specific on "querying its state" and "high-level commands"? If you're willing to write custom C++ code, you can pretty much do whatever you want on top of the rcxlib stuff from the NQC source base. Its pretty easy to send (...) (26 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Use PC's IR port instead of IR tower?
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Hello, Is it possible to use a PC's IR port, instead of the IR tower, to communicate with an RCX? (I have a Dell Inspiron 3500). -- Brad Aisa baisa@NOSPAMbrad-aisa.com -- PGP public keys available at: (URL) faire." (26 years ago, 9-Nov-99, to lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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(...) I can think of two other possibilities: The best approach is probably to add more gears so that the motors don't have to work as hard to move the platform. The platform will move more slowly, but at least it will move at all. (Hmm... That (...) (26 years ago, 8-Nov-99, to lugnet.robotics.rcx)
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| | Re: RCX motor voltage
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(...) These solutions bring up problems of their own: using a motor to operate a switch (battery box or Lego switch) requires monitoring the switch state to determine on/off status. Also, there will be a time delay while the motor moves from one (...) (26 years ago, 8-Nov-99, to lugnet.robotics.rcx)
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| | Re: Communication with PC using NQC
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(...) Thanks for the explanation. So, it's back to the basics! ;-) I did not explain my question very well, I think. What I would like to do is to steer the RCX from the PC, by querying its state and send it high-level commands (for example to make (...) (26 years ago, 8-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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