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 Robotics / 18276
    RE: optical mouse chips as vision sensors? —Mike Payson
   One other interesting thing about this idea-- If it works, not only will you get the optical sensor, but you can probably get up to 5 touch sensors and a rotation sensor at the same time. I'm not sure how the signal is sent, but will the RCX be able (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
   
        Re: optical mouse chips as vision sensors? —John Barnes
     This whole thread just caused an interesting thought to pop into my head, although I suspect it would only apply to cases where LegOS were being used. If the mouse serial port output (transmit line) were to be connected to a LMC555 (running at (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
    
         Several hardware questions.. Laser link Hardware expansion n' more —MiB
      Hi - I posted a letter just before and I don't know If it went thru. I take it again there - Is there some hardware modifications to Mindstorm so it can have more IO ports - like more Motor control ports and more sensor ports? - And a second thougt (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
     
          Re: Several hardware questions.. Laser link Hardware expansion n' more —Mike Payson
      The Ferarri book yalks about some ways to add input or output ports. The option that looks most promising to me is detailed at (URL) that site: "I'm very Pleased to announce that my latest project the '(MS)2 Expander' will expand your RCX's ports (...) (22 years ago, 3-Jul-02, to lugnet.robotics)
     
          Re: Several hardware questions.. Laser link Hardware expansion n' more —John Barnes
      I have chased this topic around quite a bit in the last couple of years and built a few prototype devices to perform "I/O expansion". My final conclusion, having gone to the trouble of building a device which permits two of the RCX motor ports and (...) (22 years ago, 5-Jul-02, to lugnet.robotics)
    
         RE: optical mouse chips as vision sensors? —Ralph Hempel
     (...) No, pbForth can easily read arbitrary chars coming in on the IR prot, we'd just need to switch the RCX to 1200 baud... (...) John, If you send me a modified mouse, I'll do the other Forth stuff needed to get this working in a weekend. Cheers, (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
   
        RE: optical mouse chips as vision sensors? —Michael Obenland
   (...) What about using a cordless mouse? One could fiddle withthe optical problems first and could use the normal IR tower to send position information to the RCX. Michael (22 years ago, 1-Jul-02, to lugnet.robotics)
 

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