USB-UIRT Forum

The USB-UIRT is working well, except that I cannot get it to learn and transmit most of the IR codes for my Yamaha receiver. It seems to learn these codes, but when I blast them back at the receiver they don't do anything.

Any suggestions?

Joe

ctraeger,

Please supply the following:

1. Pick a button on your remote and perform an 'IR Debug' on it (hit the IR Debug button instead of the learn button and then hold the remote similar to learn, then paste the resulting data to your post.

2. Perform a regular Learn on the same button and post what appears in the 'Code1', 'Code2', and 'Frequency' boxes.

3. Tell me the model of your Yamaha.

Thanks!

-Jon

Thank you for the quick reply. Which software am I supposed to be using to do this? I've just been using the sample program that was provided with the USB-UIRT together with a small remote-control program I was able to fashion from that sample code.

Is there something else you would suggest using? Thank you. I'm very new to this.

OK,

I was thinking you were using the Girder plugin.

If you get a chance, you could load Girder and perform an IR debug...

In any case, could you post the learned IR code passed back from the LearnIR() call.

--and also the model of Yamaha--

-Jon

Apparently the problem was in the positioning of the remote-control in relation to the USB-UIRT. For some reason that remote-control has get to be in a perfect spot less than an inch away from the USB-UIRT to have the codes captured correctly.

BTW is there any one form of the IR codes that transmits more efficiently and/or reliably than the others? Is there a way to extend the range of the USB-UIRT? Perhaps with some RF extender?

Thanks

I would recommend capturing in the Pronto format. This produces a longer string, but if that is not an issue it is the most 'universal' code.

There's no reason you couldn't use an IR extender in conjunction with the USB-UIRT. You could also wire to the IR emitter jack on the back of the unit.

I would be interested if you get a chance to get both a learned code (that learned correctly) and an incorrect learned code of the same button (for learning algorithm improvement).

Thanks!

-Jon

These are the codes that were captured in Pronto format for the CD button on my Yamaha receiver remote-controlled. The receiver is a R-V701.

[Correct]
0000 006C 0022 0002 0158 00AC 0016 0016 0016 0040 0016 0016 0016 0040 0016 0041 0015 0041 0016 0040 0016 0016 0016 0040 0016 0016 0016 0040 0016 0016 0016 0016 0015 0016 0016 0016 0016 0040 0016 0041 0015 0016 0016 0041 0015 0016 0016 0041 0015 0016 0016 0016 0016 0016 0015 0016 0016 0041 0015 0016 0016 0041 0015 0016 0016 0041 0015 0041 0016 0040 0016 05F1 0158 0056 0016 0E54

[Incorrect]
0000 006D 0000 0002 0156 0056 0015 0E42

Okay,

FYI - the difference between these two codes is this:

The Yamaha sends out a long IR code for the button and then repeatedly follows it with a short 'repeat' code. The Good code has both the full code and the repeat code. The bad code just has the repeat code, indicating that during the Learn process it 'missed' the original good code. My best guess is that the first part of the code burst somehow didn't get captured cleanly and hence got thrown out.

-Jon