IP2IR Global Cache Ir Commands

[chris.davis925]

Thanks for all the responses.

I spent some time with Vox Commando and the Global Cache program to test various IR commands to see if I could get the screen IR commands to work but unfortunately it doesn't work.

I could get Vox Commando ir Global Cache iHelper to make it work so i suspect the problem is actually that it's the wrong IR code.

The screen I have is Elite Screens 125" Spectrum Electric Projection
the model is 125H .

I know this is a Vox Commando forums but does anyone have any ideas as to why the IR commands aren't working? Or, what other IR commands to try?

[jitterjames]

I could get Vox Commando ir Global Cache iHelper to make it work

I assume that you forgot the word "not" but I have no idea what the "Vox Commando ir Global Cache iHelper" is.

I don't know what codes you ended up trying or how you tried them so I don't think there is anything more I can do to try to help.  Perhaps it is not meant to be.

[jitterjames]

Hey I have a crazy idea.  Buy a replacement remote! 

[Kalle]

My idea kick your idea in the ass 
I have a logitech harmony remote and I will take a look in the database if the screen is available and then I can learn the code to my GC-iTach and post here the code. 

[Kalle]

Ok, I have learned the original codes for the Elite Screens Model 125H to the iTach, here the results:

Code: [Select]

[screen up]
GC: sendir,1:3,1,38095,1,1,48,16,48,16,49,16,48,16,16,49,16,48,16,49,16,48,16,48,16,49,48,16,16,1314,49,16,48,16,48,16,49,16,16,48,16,49,16,48,16,49,16,48,16,48,49,16,16,3809
GCCompressed: sendir,1:3,1,38095,1,1,48,16A49,16A16,49,16,48CDDCA16,1314BAABDCDCDDB16,3809
CCF: 0000 006D 0000 0018 0030 0010 0030 0010 0031 0010 0030 0010 0010 0031 0010 0030 0010 0031 0010 0030 0010 0030 0010 0031 0030 0010 0010 0522 0031 0010 0030 0010 0030 0010 0031 0010 0010 0030 0010 0031 0010 0030 0010 0031 0010 0030 0010 0030 0031 0010 0010 0EE1

[screen down]
GC: sendir,1:3,1,38095,1,1,48,16,49,16,48,16,48,16,16,49,16,48,16,49,16,48,16,48,49,16,16,48,16,1314,49,16,48,16,49,16,48,16,16,48,16,49,16,48,16,49,16,48,48,16,16,49,16,3352,48,16,49,16,48,16,49,16,16,48,16,49,16,48,16,48,16,49,48,16,16,49,16,3809
GCCompressed: sendir,1:3,1,38095,1,1,48,16,49,16AA16,49,16,48CDDBD16,1314BABADCDCDAC16,3352ABABDCDDCAC16,3809
CCF: 0000 006D 0000 0024 0030 0010 0031 0010 0030 0010 0030 0010 0010 0031 0010 0030 0010 0031 0010 0030 0010 0030 0031 0010 0010 0030 0010 0522 0031 0010 0030 0010 0031 0010 0030 0010 0010 0030 0010 0031 0010 0030 0010 0031 0010 0030 0030 0010 0010 0031 0010 0D18 0030 0010 0031 0010 0030 0010 0031 0010 0010 0030 0010 0031 0010 0030 0010 0030 0010 0031 0030 0010 0010 0031 0010 0EE1

[screen stop]
GC: sendir,1:3,1,38095,1,1,48,16,49,16,48,16,49,16,16,48,16,49,16,48,16,48,16,49,16,48,16,49,48,1282,48,16,48,16,49,16,48,16,16,49,16,48,16,49,16,48,16,48,16,49,16,48,49,3319,49,16,48,16,49,16,48,16,16,48,16,49,16,48,16,49,16,48,16,49,16,48,48,3809
GCCompressed: sendir,1:3,1,38095,1,1,48,16,49,16AB16,48,16,49CCDCD48,1282AABADCDCCDC49,3319BABACDCDCDC48,3809
CCF: 0000 006D 0000 0024 0030 0010 0031 0010 0030 0010 0031 0010 0010 0030 0010 0031 0010 0030 0010 0030 0010 0031 0010 0030 0010 0031 0030 0502 0030 0010 0030 0010 0031 0010 0030 0010 0010 0031 0010 0030 0010 0031 0010 0030 0010 0030 0010 0031 0010 0030 0031 0CF7 0031 0010 0030 0010 0031 0010 0030 0010 0010 0030 0010 0031 0010 0030 0010 0031 0010 0030 0010 0031 0010 0030 0030 0EE1

Let us know if it works 

[nime5ter]

A question for Kalle and James:

If Chris is trying the GC codes you've provided, and they're not working with his Elite Screen, is it worth trying to change the repeat value to send them more than once, the way that James suggested here for another user's Sony problem? http://voxcommando.com/forum/index.php?topic=1403.msg12130#msg12130

Assuming the iTach is properly sending IR signals to other devices, what's the best way to eliminate whether the issue with his screen is the code itself, or a hardware problem such as a bad receiver or receiver out of range?

(I figure this could be a helpful discussion for lots of us, so I thought I'd ask.)

[jitterjames]

Yes, I think it is worth trying different repeat values.

If the iTach is working with other devices then I think it is safe to eliminate the possibility that the emitter is damaged.

Obviously it makes sense to test the iTach with as many devices as possible and to familiarize oneself with the iTach software before trying to use it with VoxCommando.  Solving one problem at a time is always the best approach, IMO.

Once you've established that the iTach is able to send codes correctly, you need to make sure your emitter is positioned correctly (at the correct angle and not too far away - some devices have a better range than others), and then try whatever codes you can find that might work with your device, and experiment with repeats.  Usually a repeat of more than 2 is not necessary AFAIK but you could always try 1, 2, and then 3 repeats, and then move on to the next possible code-set.

[nime5ter]

Makes sense, thanks.

I would imagine it might be difficult to position the emitter "at the correct angle and not too far away" if, for example, the motorized projector screen and its receiver 'eye' are mounted on the ceiling or something like that.

[Kalle]

Hi nime5ter, here are two good websites. The first website explain how the sony code works and the second explain all the other codes, both are very interesting.

http://www.righto.com/2010/03/understanding-sony-ir-remote-codes-lirc.html

http://www.sbprojects.com/knowledge/ir/index.php

[nime5ter]

Thanks Kalle. You're right, quite interesting.  But then, I'm the kind of gal who doesn't panic when she sees a page full of wordddzzz. "Oh, no! I have to READ to understand this??"  

I particularly liked the sbprojects link. So, 38khz is generally the IR signal frequency used by commercial remotes to avoid IR interference from things like sunlight or heat. I'm curious, though, what kinds of things still might interfere with IR code transmission.

This site talks about fluorescent lights, for example: http://learn.parallax.com/node/300

I wonder what kinds of fluorescent lights they're referring to. It's pretty common in Canada and the U.S., at least, for guys to have their "man caves" in basements lit with fluorescent lights. You would think that could pose some problems?

[jitterjames]

The fluorescent backlight on some large TVs (like ours) can be terrible for IR interference.  That's why our MCE IR receiver is covered with paper and hidden down under a shelf, and why I need to turn off the TV (and turn out the lights, and stay away from windows, and basically hide under a blanket) when I want to try to learn codes on the Amulet.  Actually it recently occurred to me that I should probably tape some paper over the learning window on the Amulet because I think it is too sensitive, but I have not tried it yet.

[Kalle]

Yes, fluorescent lights can make problems when you learn a code to a remote like the amulet. A good example is a plasma TV, which generated a lot of infrared disorders. You can do a simple test with your USB-uirt, which will blink red when a IR signal is detected. Hold a switched "energy saving bulp" in front of the uirt and the uirt led will blink like a strobe light  


I'm write to slow  

[nime5ter]

Poor Kalle.  

Aber warum nicht auf Deutsch schreiben? Du weisst, ich kann dich verstehen.

It would be good practice for me. And other VC folks can use Google Translate every once in a while.


... oder "zu schreiben"? Which is right?

[nime5ter]

Also, thanks to both of you for your various examples. I now have a better understanding of why so many of our electronics have to have ugly bits of paper and tape plastered all over them.

[Kalle]

 

when I write in English, I can learn it a bit better (for june    )

"schreiben?" is right - "schreiben?" ist richtig