[mythtv-users] Multiple IR Blasters?
Michael T. Dean
mtdean at thirdcontact.com
Wed Jun 8 03:28:52 UTC 2005
Ryan Tremaine wrote:
>Mike, please excuse my ignorance but my DIY electronics knowledge is limited
As is mine. That's what friends are for, though. ;)
>Does Enrique's method allow you to transmit unique IR codes to
>each box? So there would be 2 light emitters? If so I'll definitely give
>this a try.
Actually, the circuit is a home-built IR blaster. Assuming your box
allows you to use different remote codes, you would simply configure the
boxes and provide a lircd.conf that lists codes for two remotes--each
using a separate code.
For example, I have DISH network and created a lircd.conf that lists
three remotes--dish, dish6, and dish9--using remote codes 1, 6, and 9.
(I only have two receivers, but when calculating a second set of remote
codes, doing a third was no extra work.) Then, I set the channel change
script for my inputs to use "change_channel dish" and "change_channel
dish9" where change_channel is a script that accepts a LIRC remote name
and a channel number and sends the appropriate signal.
So, even though the signal is received by both boxes, it's ignored by
the one using the other remote code. That way, I can stack my DISH
receivers right next to each other and control them with a single
transmitter. To do this, you need the improved transmitter--the LIRC
simple transmitter doesn't have the range or breadth of signal to
control more than one device.
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