Re: TI-H: IR-Link
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Re: TI-H: IR-Link
At 19:38 1997-11-18 -0700, you wrote:
This is a little problem! But With my new system that is now working it is
not a problem. I swap one byte in a time and send it over Ir. This way TI:s
own protocol will take care of errors with it's own checksum system!
And in my system: The first thing that happens is to look at a LED and than
se if it's possible to send! In this way you can send via reflections in
wall or roof etc....
And these things works. I am now working on to make it better.
It's also going to have a selection switch for either TI8x protocol or any
possible protocol with direct state transfer. The speed of selection TI8x is
very fast (up to 1,3 Kbps!). And direct state is fast for any good
protocol. But I will not release my software before it is really good. You
can look at scheme on my homepage under TI85 stuff or Pic projects!
http://www.dalnet.se/~pea: I haven't yet updated the switch or software
description!
Per-Erik Andersson
pea@dalnet.se
>But, what if someone walks between the link? What if there is an error?
>Your idea is good, you whould try it, but people have already thought of
>this. The only thing that would be practicle would be chatting durring
>math (hehehe) and 2 player games or controlling your TV. To transfer
>programs, you could write a driver in asm that would send a byte, and then
>the byte would be sent back to the calc. Simple error checking!
>
>Grant
>
>>After reading a few messages from this list about a possible IR link
>>for TI calculators, I thought of a nifty way of doing this so that it
>>would work with both the TI-protocol as well as any ZShell or
>>assembly programs--it would function as though there would be just a
>>plain old wire between the two. I bought a few parts from Radio
>>Shack and was doing some experimenting of my own and it looks very
>>practical. I just need to order a few parts that are not available
>>from Radio Shack and I will be underway. I'm hoping it won't cost
>>more than $20 (which is very probably if it works) and I'm also
>>hoping that it will be composed of only a few chips at each end. If
>>I make any more progress on this project, then I'll keep you updated.
>>
>>Ed Plese
>>http://www.geocities.com/siliconvalley/bay/2267
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