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RE: LIRC
- To: ukha_d@xxxxxxx
- Subject: RE: LIRC
- From: nigel@xxxxxxx
- Date: Sun, 03 Dec 2000 19:04:31 -0000 (GMT)
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
On 02-Dec-2000 Stuart Grimshaw wrote:
> Nigels IR repeater for my stereo in the office next to the bedroom,
> If I could add IR control from my PC that would be an added bonus.
>
> Do you think I'd be able to use the TSOP as the IR receiver for
> LIRC?
It looks like it should be fine- have a look at
http://www.lirc.org/receivers.html
where the circuit is basically the
same as what I suggest (with a diode, regulator and cap to derive
power from the RS-232 port). Only potential snag is the 4k7 pullup
resistor, which is quite low- if you have some other receivers in
parallel, you'd probably best leave that out, or replace it with
something bigger (50k)- it probably needs to be present to help the
RS-232 port see a +12/0V signal instead of +5/0.
The TSOP 1838 data sheet (they actually suggest the similar 1738 on
the lirc.org page) was at http://www.vishay.com, IIRC- I don't think
I have the pdf version but a websearch might turn it up
Nigel
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