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Subject: 
Re: Pinball INFO - passed on from builder
Newsgroups: 
lugnet.robotics
Date: 
Thu, 17 Nov 2005 16:38:21 GMT
Viewed: 
6716 times
  
In lugnet.robotics, Brian Davis wrote:
> In lugnet.robotics, Martijn Boogaarts wrote:
> 
> > > I was wondering how you networked between the
> > > two IR communication chambers (the article is
> > > a little vague, refering to a "direct feedback
> > > loop" which could be anything).
> > 
> > not sure what you mean... this RCX uses a
> > motor-rotation sensor-rotation sensor construction
> > to transmit the points to the newball RCX. this
> > one also has a Motor-rotoation-rotation construction
> > to feedback the counted points.
> 
>    You answered my question very clearly, thank you. This sounds like a nice
> feedback system using the rotation sensors, and could be used to signal a lot of
> things. Do you use a single axle connecting two rotation sensors where the axle
> can be turned by either RCX (this would require two motors and two rotation
> sensors), or does each RCX have a dedicated output system and a seperate
> dedicated input system (this would seem to require two motors and four rotation
> sensors).
have a look at the following deep link;
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1490167
We used 2 motors 2 axles and 4 rotation sensors:
one set for signals towards the newball RCX and one back towards the Points
Collector RCX.

>    I assume the RCX collecting the points would not have trouble with
> simultaneous IR messages because only one "scoring event" would happen at any
> one time (the ball could only hit at most one target or scoring device at a
> time). Did the point collecting RCX need to identify where (which RCX) the
> points were coming from?

Right only one IR message at a time.
there is no indication where the points came from, since this is not nessary
information.
> 
> > (I plan to create a little movie  so you can see it as well :)
> 
> Fantastic - I look forward to seeing it!

I did not have the time yet to make a nice movie please have some more pacient.
in the mean time look at this:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1490235


and the main, pinball link (maybe not yet working)
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=154358


Martyn



Message is in Reply To:
  Re: Pinball INFO - passed on from builder
 
(...) You answered my question very clearly, thank you. This sounds like a nice feedback system using the rotation sensors, and could be used to signal a lot of things. Do you use a single axle connecting two rotation sensors where the axle can be (...) (21 years ago, 7-Nov-05, to lugnet.robotics)

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