JP1 Remotes

Dude, please take this as friendly constructive criticism, but some of your posts come across as a bit "know it all". We're a very friendly group here and my hunch is, if folks think you know it all, they'll figure you can get it done without their help. Just saying.

Fair comment, but look at it ...

To replace the keypad, you would have to run several wires for the columns and several wires for the rows.
Yup, well aware of that. Don't waste your time teaching me electronics, there are questions I might have about using JP1 (which is why I'm here), but I'm across everything else. This is more ...

NEVER.
Never say never. You don't know me, you don't know what my experience is, nor how motivated I am. As a hardware engineer, hardware is easier for me than software.

The tracks routed from the keypad are connected to the very small micro controller under the black epoxy.
So I see, hence my ...

I might as well wait for the USB adapter to turn up (and that will let me use my Win7 notebook instead of relying on my Linux tower).
The cable has been here about a week, and I just got around to looking into it today (notes here: http://www.hifi-remote.com/forums/viewtopic.php?p=140050#140050 ...

Excellent, but if I had to develop code the job would take forever.

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Thanks for the report.
You're welcome, always willing to contribute.

This is why we recommend you buy cables with 6 individual connectors like this... They ship worldwide
Yeah... if you don't mind delivery in 3 to 6 weeks. I prefer to buy local if at all possible, and a bit of adapting is no ...

As I have successfully procured a USB-serial cable and used it to communicate with my URC-1280, I am adding my experience to this thread.

The cable was purchased from a seller on the UK version of eBay, advertised as "FTDI FT232RL USB to TTL Serial RS232 Cable 6 Pin ARM PIC Pi Arduino UK Seller ...

If this IDC connector is intended to be connected to a DB9 connector, then it is a standard +/-12 V RS232 port, so don't connect it to your remote as it can be destroyed by 12V and negative voltages !
Yep! My mobo connector is running at +/-11V. I could knock up a level shifter, but I might as ...

I'll share a bit more detail of my thinking:

The PVR in question is a Humax HDR-FOX T2 (which came out around 2010, when HD TV was starting in the UK using DVB-T2 encoding on specific broadcast channels - most of the muxes remain DVB-T). I'm part of a community which has hacked the HDR-FOX and we ...

This remote has a "TV/DTV" button which she relatively often presses unvoluntarily, which gives a snowy screen (no analog channel anymore) and she does not know how to get out of it ...
I guess you could disable that button physically? At least it would solve that particular problem.

My user was ...

Great, thanks for all replies. I can easily check what voltage my serial port runs at before connecting anything.

Yes, I agree proper RS232 is +/-12V, but modern serial ports tend to be 0V/5V or at least able to receive 0V/5V. But how many commodity PCs have a serial port any more? It just happens ...

Not so straightforward in the UK
Why so, you have ebay there too, right?
Well, the linked items are all US, so I would have to import them. Searching on the UK site comes up with possible options, which don't have your recommendation, and delivery is about a week.

Nonetheless I have ordered one ...

The URC-1280 is a JP1.4 remote.
Thanks.

I would recommend switching to an FTDI USB cable rather than the serial cable personally, as you can get a cable for under $10 shipped on ebay.
http://www.hifi-remote.com/forums/viewtopic.php?t=16360
Not so straightforward in the UK, and anyway why bother ...

Hi everyone, first post here (but veteran on other forums so I know what's what).

I've joined because of a specific project: helping an elderly friend on the verge of dementia to continue using TV actively rather than passively! The specific problem is an inability to understand the succession of ...