Re: onboard ir config ?

[Scott M. <sm...@br...>]

Thanks for the reply Karl.

On Thu, 11 Jul 2002, Karl Bongers wrote:
> Keep in mind that lirc_sir driver is hardcoded to 38khz modulation.
> It uses a pattern of bits in a rs232 byte to implement modulation,
> not well suited to adjustments.
>
> Not sure why the laptop SIR works while the header kit does not with
> the VCR.  Obviously some difference that you cannot detect.
> Probably a bad VCR, I'd replace that :)

   Well, the VCR is a sony.  and to tell you the truth I don't really
care about it.  the whole goal is to switch from my cable tv to satelite
TV, which requires some way for me to "tune" channels in order to record
programs.  So I'll probably have another set of problems when I get the
satelite receiver.  hope that it "just works".

> ASK mode transmitted a stronger signal(farther) for me(but I don't
> think it received in ASK mode.)

   hmm...i'll give that a try.  However, I was only trying to transmit
over a distance of between 6 inches and a foot.  And, I can carry on a
conversation via that distance easily when talking from the headerkit to
the laptop.


> An IR diode on a sound card is wonderful tool to help see and hear
> IR signals.  Might help you figure it out, otherwise I'd dump
> the SIR hardware and go with the more optimized home-brew serial
> type hardware.

   well, not being much of a "hardware guy", I tried to avoid that.  the
header kit just cost $20.  what would it cost me in supplies to put
together a home brew one, assuming that I can get one of my hardware
knowledgeable friends to help.