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 Dear LEGO / 5393
5392  |  5394
Subject: 
Re: Thoughts on Battery-powered IR-controlled trains
Newsgroups: 
lugnet.trains, lugnet.dear-lego
Date: 
Fri, 13 Jan 2006 02:38:41 GMT
Viewed: 
399 times
  
In lugnet.trains, John Barnes wrote:
In lugnet.trains, Steven Barile wrote:
Also if the RCX is NOT directly powering the trains then the RCX 1.0 (with AC
jack) isn't manditory. I would love to see the IR train be controled by the RCX.

Is reverse engineering the IR codes for the IR train hard to do? Should I try to
get the IR control codes spec and post it on ILTCO web site? Who knows how to
program the RCX with new IR codes? (Is it that easy???)


I cracked the Manas codes in ten minutes with a photodiode and an oscilloscope.

Turned out they were very easy to transmit from the RCX.

I suppose TLG could go to the trouble of inventing an entirely new scheme, but
why?

The only scary thing is how easy it will be for naughty little kids to go to
train shows armed with Lego train IR remotes hidden in their jackets.

Personally, I cannot wait for the IR trains to show up. I can see myself modding
a few to use RF (418MHz ?) instead of IR. This would make it immune to that kind
of problem. And a simple RS232 - 418MHz PC gizmo would make PC control easy too.

JB

how difficult do you think it's going to be to convert from IR to RC? this is
one of the many things i wouldn't mind trying but i honestly hadn't thought of
it before your post. another option is to somehow offset the frequency that the
IR trains work off of to add additional channels. granted the user would need to
have 2 controlers but it would be a huge advantage over only 3 channels.
ondrew



Message has 1 Reply:
  Re: Thoughts on Battery-powered IR-controlled trains
 
(...) Well, until I buy one and dig into it, I am not going to know how much space there is within the housing. I like RF 'cos it works out of line of sight. As far as different sub-carrier frequencies for IR, there are a number between 25KHz and (...) (19 years ago, 13-Jan-06, to lugnet.trains, lugnet.dear-lego)

Message is in Reply To:
  Re: Thoughts on Battery-powered IR-controlled trains
 
(...) I cracked the Manas codes in ten minutes with a photodiode and an oscilloscope. Turned out they were very easy to transmit from the RCX. I suppose TLG could go to the trouble of inventing an entirely new scheme, but why? The only scary thing (...) (19 years ago, 13-Jan-06, to lugnet.trains, lugnet.dear-lego)

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