Scientific Atlanta Cable Box Error Codes

[Elnora Heidrick]

HelloI am trying to use the raw receive and send function of the IRremote library by shiriff (version 4.3.0). I need to use raw receive and send because the protocol of the cable box I want to control is unknown to this library (the cable box is a rogers scientific atlanta explorer 4290). To get raw readings of. my remote, I tried to use the receive dump example. However, it does not print anything in the serial monitor when I press buttons on my remote.

I have other code which can receive the code but not raw, which works fine, so I know my circuit is okay. I have looked at a number of websites online about using sendRaw, but I can't find out how to get the raw data in the first place.

I'm now trying to send the codes using an IR LED to my TV. I tried using the IRremote library's code again, but it is in a different format than the raw data your code outputted for me. How would you send these codes back to the TV with a IR led? Thanks a lot for the help.

I have looked at the example "SendRawDemo", but I can't figure out how to input my data into the program. There are two arrays, which both look different than my data. This is what the portion of the example code with both arrays looks like (if you need the full thing, its under example sketches and is called SendRawDemo):

Ok, I got the example sketch running. It seems to be working fine, but it does not work to turn my TV on. In the serial monitor, it prints out the raw codes, and when I click my push button it says it has sent the code.

When I replace the IR LED for a regular LED, it blinks quickly, which I think shows that the wiring and everything is correct. But still, the IR LED is not able to control my TV. Do you have any ideas what might be the issue here (or another way to do it)? I really thought this would have worked. Thanks in advance.

Edit: it doesn't appear to be NEC. So what hex values and protocol actually work? That would tell you what the individual bit values are supposed to be. Also, all the numbers end in 00 or 50. So I assume it is rounding to the nearest 50, which may not be good enough.

In case it matters, it appears Sony has 12bit, 15bit and 20bit IR codes, and can use 40KHz or even 56KHz modulation. So your receiver may not be perfectly matched. But if it works in hex, then it should work in raw.

The protocol I really want to use is unknown. However, I was trying the program with the sony codes to see if they might work instead (my TV is sony, so I need sony codes to turn it on and off, but my cable channels are using an unknown protocol - hence why I am trying to use raw codes).

But you said somewhere above that you were able to read a key on the Sony remote as a hex value and then send that out again, and that worked on the TV. So I'm asking what that hex value was. I want to translate that into what raw should be, and see how it compares to the raw input you got (assuming you hit the same key on both).

I suspect that somewhere in the library there is a setting for the modulation frequency. But I'm not sure that's the problem. If you got a hex value to work at 38K, that could be close enough to 40K that it doesn't matter.

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