JP1 Remotes

Well, I put the two macros from my -/-- and AV buttons into the TV and SAT buttons. They do not work as intended.

With the remote in SAT mode, pushing the TV button selects TV mode and switches TV input from the current EXT to TV/analog. Subsequent pushes should flip back and forth between TV ...

TT - You have checked "view hidden devices" in device manager in safe mode which should show you com ports that have been used at some point but are not connected at this time? You should then be able to remove them.

Just to let you know I have managed to build an upgrade for my Alba DVD/Freeview combo box A couple of bugs to iron out, but we're just about there.

Once again thanks to all those who support and help out in these forums.

Thanks for the info, I'll bear it in mind when creating future macros.

In this case I have no reason to preserve the original device key but the possibility of a loop was a worry.

I have to say - JP1 is much more powerful than I thought and has opened up whole new suite of possibilies for ...

I simply created a macro using IR bound to the "DVD" key, with the captured commands (AMP,1/2/3) followed by the original device key, so I have:

TV = AMP,1,TV
STB = AMP,2,STB
DVD = AMP,3,DVD

I was concerned this would generate some sort of loop but it seems to work fine. The remote changes mode ...

It was so easy I'm almost embarressed to have asked the question in the first place. A good example of something that is easy using JP1 but not possible with just the original remote.

The initial purpose was to emulate the original remote which tells the user which mode it is set to by displaying the info in the TV itself. i.e press DVD and the TV displays "DVD" nothing else changes apart from the remotes operating mode.

I would think macro's would be worth a try, but the remote ...

My original Samsung remotes are multi-device remotes, when a device key is pressed, not only does the remote change mode, but it sends a command to the TV which then displays the new remote mode.

Thought this might be handy, I can capture the codes sent but didn't think it would be possible to ...

Thanks folks, I think that gives me enough info and confidence in the data I'm seeing to have a go at building an upgrade for my device. Might take a while, but if I get stuck I will post back here.

OK, now that I have a working JP1.x interface I can see what the remote thinks it's seeing.

Let's start with the basics, I taught the remote consecutive keypress of the #1 key and this is what I get.

1st keypress of device key 1 gives...
Protocol RC5, device 30, no subdevice, OBC 18, Hex command ...

Apparently as we've just discovered it may be JP1.3 but the cable is the same.

Resolved - driving Q4 from a 9v battery rather than robbing DTR to feed RX cured the problem.

Getting a bit lonely in here...

Having scratched my head (a lot) and fiddled around with resistors diodes and leds with varying success I came to the conclusion that there was not enought grunt from the DTR line to trigger RX data on my laptop, perhaps due to current limiting at the serial ...

The URC-7950 is JP1.2 cable.

Help - JP1xTEST passes = IR says No response from interface

Can I assume that if JP1xTEST passes, given that I can see different data from different remotes that the interface is good, or do I have hardware problems....

The only concern I have at the moment is that DTR may be coming down far ...