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In lugnet.org.ca.rtltoronto, Steve Hassenplug wrote:
> In lugnet.org.ca.rtltoronto, Calum Tsang wrote:
> >
> > Ever have one of those times where it's like "it ran outside the chassis!" then
> > you actually install the bastard and put everything together and it stops
> > working? ...
> > Last night was one of those times. Sacha had figured out how to make the two
> > bricks share sensor readings as I'm using four lights and four touches. (the
> > touches are tied together...) Works great on paper...and sitting on the table
> > with a third test RCX. Once in the r20 chassis?! Stops working.
> Try turning around the wire on one of the RCXs. When connecting RCXs together
> this way, the polarity WILL matter. That would explain why something that
> seemed exactly the same would work outside the robot, but not when it's
> assembled. It's a grounding thing.
Hey Steve,
Thanks--
I guess I should have clarified--it's the inter brick communication via IR
that's not working. The touches were placed the same way on the test brick, and
the "master" brick portion is running fine. The master has all the touches on
it.
It's the "slave" brick which is not sending it's updates properly, or the
"master" which isn't receiving them. I think Sacha's not polling the receiving
message function properly--it's like a very slow stack you check periodically?
Calum
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Message is in Reply To:
 | | Re: Gear lash....
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| (...) ... (...) Calum, Try turning around the wire on one of the RCXs. When connecting RCXs together this way, the polarity WILL matter. That would explain why something that seemed exactly the same would work outside the robot, but not when it's (...) (19 years ago, 2-Mar-06, to lugnet.org.ca.rtltoronto)
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