Subject:
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Re: remote control and rcx
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Thu, 8 May 2003 20:47:47 GMT
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Viewed:
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2933 times
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In lugnet.robotics.rcx, Lars Gjerløw Jørgensen writes:
> nanobapt's utterance expressed in news:3EBAD33D.3090200@wanadoo.fr:
>
> > Does you use RC with 2 RCX powered on ?
>
> nope - only one at a time - but that shouldn't have
> any influence since the rc is one-way-only. The pc
> is another thing - here it is very important that
> only one rcx is turned on at a time (I believe!)
>
> Leg godt!
The RCX will not respond to the remote until you succeed in downloading the
firmware. The built-in romware does not listen to the remote. The remote
can be used with many RCXes at once, since it is a one-way protocol with no
response messages.
When downloading firmware or programs, you definitely only want to have one
RCX turned on at a time, since they do respond to the PC and will interfere
with each other's communications. Having more than one RCX turned on will
always (in my experience) cause the download to fail.
I also had an evening not too long ago where none of my RCXes would take a
firmware download. I tried a couple different computers, different towers,
fresh batteries, different room lighting, and nothing worked. The next time
I tried to do it (a couple weeks later) everything worked just fine.
I never did figure out why this happened, but I've heard others tell a
similar tale here in the past. I guess if you can't get a download to work
after dozens of attempts, shut it down for a few hours/days and try again later.
- Chris.
p.s. Check out my FREE MindStorms remote control emulator for Windows at
http://www.drvegetable.com/download.html
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Message has 3 Replies:
 | | Re: remote control and rcx
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| (...) Chris, Do you own any Spybots? If you leave the remote in "ping" mode (as kids tend to), you will have a horrible time downloading anything. This has happened to me many times. I still do a little head scratching each time, until I think (...) (21 years ago, 9-May-03, to lugnet.robotics.rcx)
| | | Re: remote control and rcx
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| Chris Phillips's utterance expressed in news:HEL5rn.1DrD@lugnet.com: (...) okay - bought the rc after I had upgraded the old rcx. (...) hmm seems a little embarassing for TLC. I've had ir-devices for many years and this is the least functional thing (...) (21 years ago, 9-May-03, to lugnet.robotics.rcx)
| | | Re: remote control and rcx
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| (...) I had a similar experience. In fact, it happens to me fairly regularly. I believe I've traced it to bad connections in the tower's serial cable. After I fiddle with it the problem usually goes away. (21 years ago, 9-May-03, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: remote control and rcx
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| nanobapt's utterance expressed in news:3EBAD33D.309020...anadoo.fr: (...) nope - only one at a time - but that shouldn't have any influence since the rc is one-way-only. The pc is another thing - here it is very important that only one rcx is turned (...) (21 years ago, 8-May-03, to lugnet.robotics.rcx)
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