Re: TI-H: Infrared control

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Re: TI-H: Infrared control


I went looking around when I was building a IR receiver for my normal PC. I
found some info, that might help you. Just go look for a program called
LIRC,. Its for Linux, but he includes the source code, and it has a
decodeing section to it. I know you can find if if you look on infoseek.

-jeff
jeffd@wwnet.net

-----Original Message-----
From: Eilon Lipton <yoe@mediaone.net>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Monday, May 03, 1999 10:23 AM
Subject: RE: TI-H: Infrared control


>
>Well, I have my share of universal remotes, but eventually I would
>appreciate testers.
>The range of the port seems to be no more than a foot or so in somewhat
>lighted situations. Apparently infrared works much better in dark
>situations. But that is not really the problem anyway.
>With regard to regular remote controls being able to communicate with
IrDA -
>well, the CE device can read from the remote, and only when a remote button
>is pressed, so there is *something* going on there. The question I have is:
>how do I interpret that something.
>
>Here are some samples:
>Sony stereo:
>-64 -64 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -64 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -64 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -32 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -32 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -32 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -32 -32 -64 -32 0 0 0 -32 0 -64 0 -32
>-64 -32 -64 -64 -32 0 0 0 -32
>(tabulated by me - weird that it is all the same, I pressed random buttons)
>Panasonic TV:
>0 112 -4 112 60 14 -16 56 30 7 112 60 -2 112 60 30 7 112 60 30 7 112 60 30
7
>112 60 30 112 -4 -16 -16 -16 112 60 -2 112 -4 -16 -16 -16 112 -4 -16 0
>112 -4 112 60 14 112 60 30 112 60 30 -1 112 60 14 112 60 30 112 -4 112 60
30
>112 60 30 7 112 -4 -16 -16 -16 112 60 -2 112 -4 -16 -16 -16 112 -4 -16 0
>112 -4 112 60 14 112 60 30 112 60 30
>(These are simply the raw data read in from the IrDA port (treated as a
>serial port, standard Win32 CreateFile(), ReadFile() etc.)
>
>One thing I am considering: Maybe I am not reading from the port fast
>enough? These devices have limited speed, but who knows. Maybe it is too
>slow because I am wasting time refreshing the display each time?
>
>Again, any help and/or information is appreciated,
>   Eilon Lipton
>   yoe@mediaone.net
>
>
>> -----Original Message-----
>> From: owner-ti-hardware@lists.ticalc.org
>> [mailto:owner-ti-hardware@lists.ticalc.org]On Behalf Of Gearry R.
>> Judkins
>> Sent: Monday, May 03, 1999 9:37 AM
>> To: ti-hardware@lists.ticalc.org
>> Subject: RE: TI-H: Infrared control
>>
>>
>>
>> If you need help tinkering with the code and testing, I would be
>> willing to
>> help. I have piles of remotes and some universal ones that can do lots of
>> different outputs.  I would be willing help, but I will admit that I am
no
>> expert.  I wonder what the range is of the port on the HPC?  I am also
not
>> sure that a normal TV remote is able to communicate correctly
>> with the IRdA
>> port on the HPC, but I bet that Grant knows :) .  This is one of
>> the things
>> that makes me wish I had a palm pilot, however I hate graffiti so
>> I guess I
>> will have to live.
>> Gearry
>>
>> > -----Original Message-----
>> > From: owner-ti-hardware@lists.ticalc.org
>> > [mailto:owner-ti-hardware@lists.ticalc.org]On Behalf Of Eilon Lipton
>> > Sent: Thursday, April 29, 1999 7:02 PM
>> > To: TI-Hardware
>> > Subject: TI-H: Infrared control
>> >
>> >
>> >
>> >    This is not really related to TI calculators specifically, but then
>> > again, 90% of the posts here are nothing to do with computers anyway.
>> >    Does anybody here have information on using IrDA (a standard
>> > for infrared
>> > communications) to control actual devices, such as stereo systems, TVs,
>> > etc.? I wrote a program for my Handheld PC running Windows CE
>> that simply
>> > reads 100 bytes from the IrDA port. At first it just waits. But
>> > then if you
>> > take a remote control, as long as you hold down a button, the HPC
>> > (Handheld
>> > PC) can read from the port. Once 100 bytes are done, my program
>> > finishes. I
>> > have tried to examine the input from Panasonic and Sony remote
>> > controls and
>> > each seems unique in its one way, but I cannot seems to
>> > understand how they
>> > send their information.
>> >    I have tried examining other programs that use infrared for
>> > other things
>> > but no success. Any information is appreciated.
>> >
>> > Eilon Lipton
>> > yoe@mediaone.net
>> >
>> >
>>
>>
>>
>
>
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