Subject:
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Re: IR Tower
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 22 Dec 1998 19:52:56 GMT
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Viewed:
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1599 times
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Dave,
I would be curious if anyone has played with the laptop IR as well.
It seems like this should be fairly easy to do.
I have seen someone doing "something" with the palm IR, although not
fully functional. The link is around here somewhere. Have not
tried it yet though.
-- jim
dave madden wrote:
>
> Hi. I have a Puma IR adapter that I think is fairly generic -- it was
> provided to work with a Sony digital camera, but it receives regular
> IR remote control transmissions, and *almost* works with my RCX.
> However, it appears that the LEGO(r) IR tower does a little more than
> my Puma adapter: talkrcx, send, and firmdl work with the tower, but
> not with the adapter.
>
> Does anybody know what goes on inside the tower before data is spit
> out the serial cable?
>
> Here's a sample of talkrcx sending a ping to the RCX, using the Puma
> adapter:
>
> talkrcx Version 0.2, using /dev/cua1 for the serial port.
> Type> 10
> No echo: sent 55 ff 00 18 e7 18 e7
> got 55 ff 00 e7 18 e7 18
> In:
> Type> 10
> No echo: sent 55 ff 00 10 ef 10 ef
> got 55 ff 00 ef 10 ef 10
> In:
> Type> 10
> No echo: sent 55 ff 00 18 e7 18 e7
> got 55 ff 00 e7 18 e7 18
> In:
> Type> 10
> No echo: sent 55 ff 00 10 ef 10 ef
> got 55 ff 00 ef 10 ef 10
>
> I've added some spaces to make the numbers line up. As I understand
> the IR protocol, it looks like the adapter is working correctly, and
> perhaps the tower just swaps bytes around (inverts them?) before
> sending them. I just opened my tower, and there's a pair of 74HC132s,
> which are quad 2-input NANDs. Hmmm, 2 bytes' worth of inputs...a
> discrete toggler...yeah, that might work.
>
> Anybody else interested in using a non-Lego(r) IR adapter? Now that I
> think of it, I bet you could use the IR ports that are becoming
> standard on laptops, and I think the Palm-III has one too.
>
> d.
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Message is in Reply To:
 | | IR Tower
|
| Hi. I have a Puma IR adapter that I think is fairly generic -- it was provided to work with a Sony digital camera, but it receives regular IR remote control transmissions, and *almost* works with my RCX. However, it appears that the LEGO(r) IR tower (...) (26 years ago, 22-Dec-98, to lugnet.robotics)
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