[mythtv-users] HDPVR IR blaster slow

[Joseph Fry]

On Tue, Jun 23, 2015 at 3:39 AM, Kris Jensen <kris.jensen.knj at gmail.com>
wrote:

> On Tue, Jun 23, 2015 at 1:11 AM, Joseph Fry <joe at thefrys.com> wrote:
>
>> On Mon, Jun 22, 2015 at 10:11 PM, Kris Jensen <kris.jensen.knj at gmail.com>
>> wrote:
>>
>>> On Sat, Jun 20, 2015 at 4:39 PM, Joseph Fry <joe at thefrys.com> wrote:
>>>
>>>>
>>>>> I would welcome suggestions of a working solution for 4 emitters that
>>>> is dirt cheap and easily implemented (would rather not have to compile
>>>> drivers for each one and whatnot).
>>>>
>>>> Thanks everyone for your input on this... it's been fun getting into
>>>> the code.
>>>>
>>>>
>>> About a year ago I was faced with a conundrum of IR control for multiple
>>> AV boxes that used the same IR code set, or had a overlap of one or two
>>> particular codes. To accomplish this I needed a IR transmitting devise that
>>> supported 5 separate IR transmitters, at a minimum. Upon finding commercial
>>> multi IR transmitter solutions are prohibitively expensive, at well over
>>> $100. The hunt was on to make my own, somehow.
>>>
>>>
>>>  Then I found my solution. A few pages describing how to use LIRC on a
>>> RaspberryPi and also a page on a multi transmitter GPIO LIRC driver.
>>>
>>>
>>>  Wile not exactly a solution that you looking for. A Raspberry Pi and
>>> $30-$40 more in parts and you can make your own standalone multi IR
>>> transmitter LIRC server. And have fun making it as well. I made LIRC sever
>>> with eight transmitters. Overkill as I only really needed five but its good
>>> to have room for expansion. It works Very well.
>>>
>>>
>>>  If you are handy with a soldering iron and so inclined to go the route
>>> I did. Here are the pages that helped me make my own.
>>>
>>>
>>>  http://aron.ws/projects/lirc_rpi/
>>>
>>>
>>>  http://harctoolbox.org/lirc_rpi.html
>>>
>>>
>>>
>>> http://idrisr.com/blog/2014/05/29/compiling-a-custom-linux-kernel-with-lirc-multi-gpio-output-enabled-for-the-raspberry-pi/
>>>
>>>
>>>  There are other pages out there as well.
>>>
>>
>> Ironically, I had started typing an email about doing exactly what you
>> describe, but got distracted before sending it.  I can pick up a model B
>> for 15 bucks on eBay... so no more than $30 with case and components, and I
>> can do blasting and so much more with it.
>>
>
>
> My “standalone” LIRC server has evolved quite a bit since it inception .
> I've added a usb hard drive, a DHCP, TFTP, FTP, Samba, NFS server and MPD
> server with a usb Bluetooth radio for some music around the house or yard
> with Bluetooth speakers.
>
> Its a fun project.
>

It does sound fun.  So I take it you are using the custom lirc_rpi module
and have emitters on 5 different pins and 5 instances of lircd running?

Can I ask you a few details?

Did you use stick on emitters and just cut the plugs or make your own?  If
you made your own, any component recommendations?  I will have 4 STB's
right next to each other, so I don't want a lot of IR spilling out.
How is your backend signalling the lirc server to change channels (I can
imagine a lot of options; ssh, php, telnet, syslogd).
What is your overall response time like... does having it running on a
separate box seem to introduce any noticeable latency?
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