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shameer



Joined: 08 May 2015
Posts: 4

                    
PostPosted: Fri May 08, 2015 11:10 pm    Post subject: Reply with quote

3FG wrote:
It's much better to have RTS, especially for JP1.4 and newer remotes. However, for JP2 remotes-- which use the MAXQ microprocessors--it seems that a FTDI chipset is necessary. The 7960 is a JP1.4, so just about any RS-232 adapter will work if it can send RTS.

Thanks for the reply. I ordered the red coloured PCB. It seems to have an RTS pin. I will post after I make the interface.Hope it will work.
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shameer



Joined: 08 May 2015
Posts: 4

                    
PostPosted: Sat May 16, 2015 6:27 am    Post subject: Reply with quote

It is working! Now I will try to learn the RMIR software Very Happy
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Zhuk



Joined: 12 Apr 2016
Posts: 4
Location: Azerbaijan, Baku

                    
PostPosted: Tue Oct 04, 2016 1:26 pm    Post subject: CP2104 Reply with quote

Hi there!

I've just tested my 7140 with CP2104 USB-UART module. It works with RMIR!
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ddp_JP1



Joined: 25 Feb 2012
Posts: 24

                    
PostPosted: Sun Jan 08, 2017 9:24 pm    Post subject: Reply with quote

Is there any way to use the FTDI cable to communicate with a JP1.1 remote? (Like hooking up the connectors differently?) I recently obtained a Comcast 1057BG0 and would like to program it. I have cables for JP1 and JP1.3/4 (FTDI) but not JP1.1. Thanks.
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clemon79



Joined: 28 Aug 2004
Posts: 56
Location: Seattle, WA

                    
PostPosted: Tue Jun 15, 2021 1:52 pm    Post subject: Reply with quote

Resurrecting a way old thread.....

I have a modded URC-6131 that back in the day I used to program with a serial JP1 cable. However, said cable didn't make it in my last move, and I have found the need to pick JP1 back up again. So time to modernize!

I order a couple of these:

https://smile.amazon.com/gp/product/B07T8YHBH1/

...which look like they will work, and I'm using Tommy Tyler's document here:

http://www.hifi-remote.com/forums/dload.php?action=file&file_id=10864

to figure out how the wire colors translate. So I need someone to check my math here. Smile

The cables I ordered have the following pinout:

Red wire: 5V
Black wire: GND
White wire: RXD
Green wire: TXD
Yellow wire: RTS
Blue wire: CTS

The style of cable in Tommy's doc appears to have this one, from what I can see finding similar ones on Amazon:

Black wire:GND (pin 3 on 2x3 connector)
Brown wire: CTS
Red wire: 5V
Orange wire: TXD (pin 4)
Yellow wire: RXD (pin 6)
Green wire: RTS (pin 2)

So extrapolating from that I get, for the cables I ordered:

Pin 2: RTS (Yellow on my cables)
Pin 3: GND (Black)
Pin 4: TXD (Green)
Pin 6: RXD (White)

Do I have it right?
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mdavej
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Joined: 08 Oct 2003
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PostPosted: Tue Jun 15, 2021 2:43 pm    Post subject: Reply with quote

I don't think so. If I recall correctly a modded 6131 is a JP1 EEPROM remote that use the old parallel cable. For it to work with the JP1.3 cable you bought, you also have to buy a JP1 EEPROM adapter like this:
https://www.diygadget.com/remote-control-accessories/jp1-2-1-3-to-jp1-adapter

Next time around, a cable with individual connectors like this is much easier to work with:
https://smile.amazon.com/DIYmall-Adapter-Chipset-Arduino-ESP8266/dp/B014GZTCC6/ref=pd_day0_5/146-3263031-3284121

It's better to ask us BEFORE you buy the wrong thing.
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clemon79



Joined: 28 Aug 2004
Posts: 56
Location: Seattle, WA

                    
PostPosted: Tue Jun 15, 2021 3:28 pm    Post subject: Reply with quote

mdavej wrote:

It's better to ask us BEFORE you buy the wrong thing.


Well, I wasn't overly worried about having them since they are used with Arduinos as well, but I was able to cancel, so no harm no foul.

Is there a USB cable I *can* mod into a JP1, then?

(Or would I honestly be better off dropping $70 (or less, checking Ebay?) on a XSight, as a JP1 platform?)

EDIT: Yeesh, not even $70, ordered a used XSight Color on eBay for $22. That will serve my purposes (as a platform for programming codes in via RMIR by hand and then teaching other devices) nicely.
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Chris Lemon
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The Robman
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Joined: 01 Aug 2003
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PostPosted: Tue Jun 15, 2021 7:59 pm    Post subject: Reply with quote

To use JP1 with an old JP1 remote, like the URC-6131, you need an FTDI cable, like the one you had ordered on Amazon or like this one which is $8.69 on eBay, and a JP1 adapter which is currently $17.99 (they were $9.99 last time I ordered one).
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Rob
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Please don't PM me with remote questions, post them in the forums so all the experts can help!
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clemon79



Joined: 28 Aug 2004
Posts: 56
Location: Seattle, WA

                    
PostPosted: Tue Jun 15, 2021 9:24 pm    Post subject: Reply with quote

The Robman wrote:
To use JP1 with an old JP1 remote, like the URC-6131, you need an FTDI cable, like the one you had ordered on Amazon or like this one which is $8.69 on eBay, and a JP1 adapter which is currently $17.99 (they were $9.99 last time I ordered one).


So you do need one of those adapters, gotcha. Sounds like I'm in a much better spot with the XSight I ordered then; it's not about resurrecting the 6131 so much as having something I can program codes in from "source", as it were, and filling in the blanks Logitech/Harmony can't/won't fix.
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Chris Lemon
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clemon79



Joined: 28 Aug 2004
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Location: Seattle, WA

                    
PostPosted: Thu Jun 17, 2021 12:15 pm    Post subject: Reply with quote

Okay, so dig this: turns out the cable DID make the move! It is in fact a DB25 cable (male connector, so yeah, likely parallel), and pins 6 and 7 are clipped off. (And for the life of me I don't remember why, if I simply bent them and they're not in use or if there was a reason, or what.)

So. If I DID want to try to resurrect this for funsies, would something like this:

https://smile.amazon.com/Sabrent-IEEE-1284-Parallel-Connectors-CB-1284/dp/B00R654J18/

...be functional with RMIR?
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Chris Lemon
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The Robman
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Joined: 01 Aug 2003
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PostPosted: Thu Jun 17, 2021 1:24 pm    Post subject: Reply with quote

Yeah, not sure about that USB to Parallel cable, my recollection is that they don't work, but if you have a spare PCI slot, I think you can add a parallel port that way. The thing is that RMIR uses a process called "bit banging" to talk to the remote through the parallel port.
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Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!


Last edited by The Robman on Thu Jun 17, 2021 4:39 pm; edited 1 time in total
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clemon79



Joined: 28 Aug 2004
Posts: 56
Location: Seattle, WA

                    
PostPosted: Thu Jun 17, 2021 1:54 pm    Post subject: Reply with quote

Got it. So I'd need to find a cable with a chipset known to support bit-banging (the FT245RL looks like it might?) and even then it's a crapshoot, it's not as easy as "emulate a parallel port through USB."
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Chris Lemon
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mdavej
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Joined: 08 Oct 2003
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PostPosted: Thu Jun 17, 2021 3:00 pm    Post subject: Reply with quote

I sent you a PM with more details. But for me, the Xsight is not ideal for your purposes. Frankly, learning with it is a major PITA because it's a multi-step process including the requirement to type in a name for each function on the remote as you go.

And Rob is correct about the USB to parallel adapters. They're designed for printers and simply don't work with RMIR.
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The Robman
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Joined: 01 Aug 2003
Posts: 21210
Location: Chicago, IL

                    
PostPosted: Thu Jun 17, 2021 5:11 pm    Post subject: Reply with quote

There's no such thing as a single cable that supports JP1 remotes any more, anyone that used to make them stopped a long while back. If you want to use your old JP1 remotes with RMIR, I explained what you need a few posts back.

If you're using a desktop computer and you have a spare PCI slot, you can add a DB25 port by adding a card, like this $13 card on Amazon:
https://www.amazon.com/dp/B07S7SQ24R/

or this $7 card on ebay:
https://www.ebay.com/itm/121327923910
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Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!
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clemon79



Joined: 28 Aug 2004
Posts: 56
Location: Seattle, WA

                    
PostPosted: Thu Jun 17, 2021 8:51 pm    Post subject: Reply with quote

Yep, I did follow, but I'm not interested in sticking another card in my case, so it's not a major deal. I was more curious to see if I could end-around on the adapter having found the original cable while still using USB. Sounds like the answer is no, and that's perfectly ok. Smile
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Chris Lemon
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