[mythtv-users] A/V Receivers & MythTv

[Phil Bridges]

On Wed, Apr 9, 2008 at 2:40 PM, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
>
> On Wed, Apr 9, 2008 at 2:32 PM, Andrew Close <aclose at gmail.com> wrote:
>  > On Wed, Apr 9, 2008 at 12:52 PM, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
>  >  > On Mon, Apr 7, 2008 at 3:54 PM, Andrew Close <aclose at gmail.com> wrote:
>  >  >
>  >  >
>  >  > > with the recent release of MythTv .21 and in an effort to help our
>  >  >  >  flagging economy ;)  i'm in the process of upgrading my entire
>  >  >  >  'entertainment center'.  one of the big components i'll be upgrading
>  >  >  >  is my A/V Receiver.  at the moment, the Denon 3808CI is the front
>  >  >  >  runner.  i'm just curious to see what other Mythers use and why.  i
>  >  >  >  haven't found a receiver yet that will take input/commands via any
>  >  >  >  input aside from the remote.  the Denon has an RJ45 ethernet jack on
>  >  >  >  it, as do other receivers; has anyone been able to get their receiver
>  >  >  >  to change sound fields, presets, volume, etc. via RJ45?  it would be
>  >  >  >  quite cool to use LIRC/Myth to control the whole ball of wax.
>  >  >
>  >  >  I have a Denon 3806 and love it. The RJ45 port (on the Denon's at
>  >  >  least, and from what I understand any receiver ) is usually just for
>  >  >  firmware updates and some of the newer receivers allow for streaming
>  >  >  radio playback.
>  >  >
>  >  >  In general any good home theater component will have an RS-232 port
>  >  >  for system integration. Other than that  there really is no other
>  >  >  command input method other than the remote. You could use an IR
>  >  >  Blaster to control the Denon though. I don't think there are any
>  >  >  systems for allowing a linux PC to talk to RS-232 devices.
>  >
>  >  a couple others mentioned that i should check out AVSForums.com for
>  >  more info.  on one of the Denon 3808 threads there was talk about a
>  >  couple HTPC apps that someone was using/writing to control their
>  >  receiver.  i haven't dug into it much more since i'm still comparing
>  >  receivers.  but it looks as though it /can/ be done. :)
>
>  I guess I should have said "mature" or "developed" systems. Yea, the
>  protocol is fairly simple and system integration hardware
>  manufacturers have the command set information to produce their
>  products, but as someone mentioned getting it as a consumer may be
>  more difficult.
>

Only as difficult as going to the Denon website:
http://usa.denon.com/AVR-4308CISerialProtocol_Ver5.1.0a.pdf

The serial protocol works over ethernet, as well, although the power
functions can be spotty.