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2009/05/27 Mythtv + Denon-AVR3808 Hack
π 2009-05-27 01:01 in Linux, Linuxha
I had a minor issue where I have 4 hauppage remote controls and one on the kitchen counter that I sometimes use to control my mythtv when I'm in the kitchen.
The only problem was that sound is actually controlled by the Denon receiver and that the hauppage remote doesn't talk to the denon.

I finally found a fix for this, which somewhat justifies the extra money I spent for an ethernet connected receiver: I wrote an lirc configuration that effectively telnets to the denon to tell it to change volume when the hauppage receives a relevant remote code for that.

lircrc:

# Denon
# Mute
begin
prog = irexec
button = MUTE
repeat = 1
config = /var/local/scr/denonmute
end

begin prog = irexec button = Vol+ repeat = 1 config = /var/local/scr/denoncmd MVUP 3 end

begin prog = irexec button = Vol- repeat = 1 config = /var/local/scr/denoncmd MVDOWN 3 end

denonmute:

#!/bin/bash

FILE=/var/run/denonmute

test -f $FILE || touch $FILE

# prevent bounces [ $(( $(date "+%s") - $(stat -c "%Z" $FILE) )) -lt 2 ] && exit

if grep -q MUON $FILE 2>/dev/null; then CMD=MUOFF else CMD=MUON fi

echo -ne "$CMD\r" | nc -q0 denon 23 echo $CMD > $FILE

denoncmd:

#!/bin/bash

# $0 cmd [repeat]

for i in `seq 1 ${2-1}` do echo -ne "$1\r" | nc -q0 denon 23 sleep 0.2 done

exit

And there you go, I can now send volume requests to my mythtv and they get forwarded to my denon over TCP/IP. Pretty cool :)


More pages: March 2004 March 2009 May 2009 August 2009 November 2009 December 2009 February 2010 March 2010 June 2010 August 2010 March 2011 July 2011 August 2011 November 2011 January 2013 November 2013 December 2013 July 2014