[mythtv-users] RE: Homebrew IR Transmitter

David A. Mason damason at redshift.com
Fri Jul 11 10:31:37 EDT 2003


I got it working, and I think the reason I did is related to what you're
saying about kernels. I had to remove all the LIRC modules from the Mandrake
kernel and install from a tarball from lirc.org.

There's a guy in Australia (I've forgotten the address already) who says
that you can get it working with Mandrake's modules and daemons, and
provides directions, but I had no luck with them.

DAM

-----Original Message-----
From: mythtv-users-bounces at snowman.net
[mailto:mythtv-users-bounces at snowman.net] On Behalf Of Michael Hill
Sent: Friday, July 11, 2003 7:00 AM
To: mythtv-users at snowman.net
Subject: [mythtv-users] RE: Homebrew IR Transmitter


I would try checking the kernel(s) you are running on.  I had the best luck
with the kernel.org versions over redhat with lirc and my homebrew.  You can
recompile them on top of redhat with no problems (as far as mythtv is
concerned).  I defintely had some of the same problems you guys were seeing
with the flakey irw output on both the actisys200L and my homebrew as a
reciever.  I tried loadnig two seperate instances of lirc by modifying the
source and almost had that working [both on the same serial port, I
believe]. 
I tried so many different configs.

I never fully resolved this one and switched to the X10mouseremote for my
recieve and lirc for xmit.  As a plus, the mousremote SW is perl, and, at
least for me, easier to edit.  I was able to get the repeat times of the
keys waaaay faster and the recieve accuracy [grabbing the buttons first
time, etc] is flawless compared to lirc.  As an added bonus it runs over RF
and has incredible range.  I can control it from other rooms in the house
with no problem.  I have another mouseremote in the bedroom now and can
control xmms / mythmusic while in bed.

Hope this helps.  By the way, Adrian and I had soo many problems getting our
IR solutions to work.  It was a long trial-and-error situation, but if you
keep after it you will win!

Cheers, Mike

--- lirc-list-request at lists.sourceforge.net wrote:
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> Today's Topics:
> 
>    1. RE: [mythtv-users] Homebrew IR Transmitter (David A. Mason)
>    2. Re: I think there is a bug in lirc_sir 
> (=?iso-8859-1?Q?Fr=E9d=E9ric?=
> MAZUR)
>    3. Re: I think there is a bug in lirc_sir (Diego Zuccato)
>    4. Urgent!! Problem in output of "irw" (suriya  mohan)
>    5. Lirc and actisys 200l, intermittent problem (Mark Edwards)
> 
> --__--__--
> 
> Message: 1
> From: "David A. Mason" <damason at redshift.com>
> To: "'Adrian Burden'" <aburden at onegeeksopinion.com>
> Cc: <lirc-list at lists.sourceforge.net>,
>    "'Discussion about mythtv'" <mythtv-users at snowman.net>
> Subject: RE: [mythtv-users] Homebrew IR Transmitter
> Date: Wed, 9 Jul 2003 20:42:30 -0700
> 
> OK, I followed these instructions, but I still wind up with
> 	lirc_serial: auto-detected active high receiver
> 
> However, that would appear not to be a problem, because jvc_send would 
> appear to work fine. I just powered off my dish receiver using my 
> home-brew dongle!
> 
> Thanks a lot.
> 
> It seems clear now that I just didn't clean up sufficiently last night 
> after Mandrake's lirc stuff.
> 
> DAM
> 
> -----Original Message-----
> From: Adrian Burden [mailto:aburden at onegeeksopinion.com]
> Sent: Wednesday, July 09, 2003 10:58
> To: 'David A. Mason'
> Subject: RE: [mythtv-users] Homebrew IR Transmitter
> 
> 
> First urpme lirc to get rid of the Mandrake lirc package.
> If you have installed lirc from source, also 'make uninstall' from the 
> lirc source directory. Delete the lirc directory from the 3rdparty 
> directory. Do a locate lirc to find the path. Then run setup.sh in the 
> lirc source directory Select home brew, com port check off Transmitter 
> diode. Save / make / make install
> 
> In rc.local 
> setserial /dev/ttyS0 uart none	//you will need to urpmi setserial
in
> Mandrake.
> modprobe lirc_serial
> lircd
> 
> This is all from memory, so I hope I got all the basic steps for you.
> 
> Cheers..
> 
> > -----Original Message-----
> > From: lirc-list-admin at lists.sourceforge.net
> > [mailto:lirc-list-admin at lists.sourceforge.net] On Behalf Of
> > David A. Mason
> > Sent: Wednesday, July 09, 2003 10:23 AM
> > To: 'Discussion about mythtv'
> > Cc: lirc-list at lists.sourceforge.net
> > Subject: RE: [mythtv-users] Homebrew IR Transmitter
> > 
> > 
> > I did do that.
> > 
> > Since this is home-made, would the "autodetection" it's using fail 
> > to see its transmission capability if I made a mistake, or is that 
> > autodetection for more complex devices?
> > 
> > I have tried both compiled from lirc.org and Mandrake packages.
> > 
> > Thanks,
> > DAM
> > 
> > -----Original Message-----
> > From: mythtv-users-bounces at snowman.net 
> > [mailto:mythtv-users-bounces at snowman.net] On > Behalf Of 
> > jasonmiller at micron.com
> > Sent: Wednesday, July 09, 2003 8:17 AM
> > To: mythtv-users at snowman.net
> > Subject: RE: [mythtv-users] Homebrew IR Transmitter
> > 
> > 
> > More specifically, don't forget to ./configure --with-transmiter. 
> > -----Original Message-----
> > From: Shirley, Mark R [mailto:MarkRShirley at eaton.com]
> > Sent: Wednesday, July 09, 2003 6:57 AM
> > To: 'Discussion about mythtv'
> > Subject: RE: [mythtv-users] Homebrew IR Transmitter
> > 
> > 
> > Default LIRC mandrake install is broken.  Remove all mandrake rpms, 
> > and install LIRC from source. -----Original Message-----
> > From: David A. Mason [mailto:damason at redshift.com]
> > Sent: Wednesday, July 09, 2003 3:01 AM
> > To: 'Discussion about mythtv'
> > Subject: [mythtv-users] Homebrew IR Transmitter
> > 
> > 
> > Has anyone had any success with the homebrew IR transmitter?
> > 
> > on Mandrake?
> > 
> > With compiled drivers and with Mandrake's drivers, it tells me that 
> > it's a receiver, and it won't allow me to transmit.
> > 
> > Perhaps I should run off and join the LIRC list, too. My inbox is 
> > getting pretty cluttery.
> > 
> > DAM
> > 
> > 
> > 
> > -------------------------------------------------------
> > This SF.Net email sponsored by: Parasoft
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> > 
> 
> 
> 
> 
> --__--__--
> 
> Message: 2
> Date: Thu, 10 Jul 2003 10:27:30 +0200
> From: "=?iso-8859-1?Q?Fr=E9d=E9ric?= MAZUR" <xilebo at xilebo.no-ip.org>
> To: lirc-list at lists.sourceforge.net
> Subject: Re: I think there is a bug in lirc_sir
> 
> -----Original Message-----
> From: karl at turbobit.com
> To: lirc-list at lists.sourceforge.net
> Date: Wed, 9 Jul 2003 13:32:28 -0500
> Subject: Re: I think there is a bug in lirc_sir
> 
> > > If I put something between IR controller and IR diode which
> simulate
> > > PULSE , is it a good thing to do ? for example, why my signal is
> > > down (i.e. PULSE), I create several up-down signal in order to 
> > > simulate a PULSE, so I can have real PULSE ans SPACE time 
> > > length.
> > 
> > Yes, thats what my circuit does, it couples a 38khz oscillator to 
> > the signal.
> > 
> > What would be even better would be a small microprocessor that would 
> > send valid IRDA/RS232 data at 115kbaud whenever the
> pulse
> > is active.  Then it would be operating with IRDA hardware as it is 
> > supposed to.
> > 
> > With just the oscillator, the signal is not what the IRDA/serial 
> > hardware expect, so it may work, it may not work.
> 
> OK, which kind of micro could I use ? I'm not electronician but I can
> get it by another guy.
> Thanks for your help , I hope it will works.
> 
> By the way, have another plan of your circuit because I can't read it
> very well :-(
> 
> 
> Frederic.
> 
> 
> 
> 
> --__--__--
> 
> Message: 3
> Date: Thu, 10 Jul 2003 11:41:03 +0000
> From: Diego Zuccato <diego at otello.alma.unibo.it>
> Cc: lirc-list at lists.sourceforge.net
> Subject: Re: I think there is a bug in lirc_sir
> 
> Frédéric MAZUR wrote:
> > OK, which kind of micro could I use ? I'm not electronician but I 
> > can get it by another guy.
> A MicroChip (www.microchip.com) PIC 12C508 or 16C52 should be more 
> than enough. 12C508 is smaller. Maybe it could even handle bidir comm.
> 
=== message truncated ===


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