Subject:
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Re: IR Problems
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Mon, 2 Apr 2007 15:03:12 GMT
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Viewed:
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11031 times
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In lugnet.robotics.rcx, <dickswan@sbcglobal.net> wrote:
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> Are you sure your problem isn't interference? How did you "lock out" the
> RCS 1.0 from receiving (and responding) to the direct commands? You have
> two RCXs turned on and sending direct commands from the PC. They will
> both try to respond to the direct commands!
Thanks for your reply. I had to return the 1.0 RCX and motor back to school
today. Those things are like gold. The 1.0 faces the 2.0 and is not in direct
line of sight of the tower. The 1.0 is just to the side of the tower. I think my
problem is that I did not include a “wait for mail” after the “send mail” in the
program running on the 2.0. That would reinitialize the 2.0 to listen which
would mean go back to listening for the next command from the tower. The 2.0
tells the 1.0 when to act via mail. The tower sends data every 13 seconds to the
2.0. Tom http://tomlohre.com/lego.htm
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Message has 2 Replies:
 | | RE: IR Problems
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| RCX IR does not require direct line of sight. All sorts of reflections will work. Especially if you're in a "smallish" (bedroom, home office) room. The RCX firmware always has the IR turned off. "Wait for mail" and "send mail" is just a higher (...) (17 years ago, 2-Apr-07, to lugnet.robotics.rcx)
| | | RE: IR Problems
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| IR communication is no where near the reliability like a tcp/ip. You can easily lose a message ... so program must be either extremely simple one way communication. The sender should be programmed to handle message loss. What I had the kids done was (...) (17 years ago, 2-Apr-07, to lugnet.robotics.rcx)
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Message is in Reply To:
| | RE: IR Problems
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| Are you sure your problem isn't interference? How did you "lock out" the RCS 1.0 from receiving (and responding) to the direct commands? You have two RCXs turned on and sending direct commands from the PC. They will both try to respond to the (...) (17 years ago, 2-Apr-07, to lugnet.robotics.rcx)
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