JP1 Remotes

ylaviolette · Joined: 17 Feb 2009 Posts: 134

If you are used to DIY solutions this one is quite simple :
No "complex programming" involved.
Order board as detailed earlier in thread.
Install Arduino IDE.
Upload ino file to board as detailed above.
Make connections as detailed in my design.
Configure as jp1x in RMIR
Bingo.

davecs · Joined: 28 Mar 2005 Posts: 328 Location: UK

OK, I've done a bit of online research and found that it's a simple matter to upload from Linux. My only other question is whether, once uploaded, the ino file stays put when the usb power is removed, or you have to upload it every time you connect it.

I think that these posts about connecting with an Arduino should be separated into a new thread. Some of the older threads on the subject are actually quite off-putting, but these posts are clear and simple.

EDIT: OK I've ordered a Nano V3.0 ATmega328P from Ebay for £4.65, and a bunch of Dupont-ended wires on the 3 for $6 from Ali Express. I have a soldering iron, and I've installed the Arduino package for Linux. So, the adventure starts when it all arrives.

Thanks to ylaviolette for the illustration that made it all clear!
_________________
URC7560/URC7562, URC8910, URC7980, URC6440/OARUSB04G and URC3661

mathdon · Posted: Fri Jul 21, 2023 7:52 am Post subject:

It stays loaded.
_________________
Graham

davecs · Joined: 28 Mar 2005 Posts: 328 Location: UK

mathdon · Posted: Fri Jul 21, 2023 11:39 am Post subject:

davecs · Joined: 28 Mar 2005 Posts: 328 Location: UK

davecs · Joined: 28 Mar 2005 Posts: 328 Location: UK

An epilogue re my Arduino order. Bad news which became good news (but other bad news at the end)!

I ordered it on 21 July and contacted the seller when it hadn't turned up by 27th. I reported it as not received on 29th and the seller sent a replacement. What I didn't know until today was that he gifted me a second Arduino Nano for the inconvenience. Very nice touch.

I was unaware from pictures I'd seen just how small they were. I used Female to Male dupont-ended wires and removed the covers from the male end, pushing heat-shrink over the wire. Possibly due to my unsteady soldering, or the heat generated, I think I ruined one. Or possibly just bad joints, but anyway, it didn't work properly.

What I did with the second one was to break off 4 pins from the strip of pins that are provided to solder into the board, 2 together and 2 singles. I was able to use the other pins to balance the board while I soldered the four, then used female to female dupont wires. If I ever buy another Arduino it will be with the pins soldered on. You live and learn!

The little 2x3 bank of connectors held the 6 individual dupont female connectors in place while the superglue set. And that one works!!

Sadly, I think my URC-8910 is faulty as it will not communicate with RMIR via the Arduino, and I'm trying to remember if that's why I gave up on it in the first place and bought the 7980 and later the 6440. All the button presses respond in the right way. I will be asking about that in a new thread.

The two URC-7560/2s I have (same remote different colour) do up- and download correctly. I do have an issue about installing the extender which I will raise in a new thread.
_________________
URC7560/URC7562, URC8910, URC7980, URC6440/OARUSB04G and URC3661

ylaviolette · Joined: 17 Feb 2009 Posts: 134

I spent hours trying to figure out why my new PC would not accept RMIR connections to my remotes via the JP1 cable I detailed above;
It was working with a number of other PC's so I went through all possible troubleshooting:

- Checked all contacts for continuity
- Redid the soldering
- Changed RMIR versions
- CH340 driver versions (2014,2019,2023)
- Java versions
- USB cables
- COM ports
- Port speed
- etc. etc. etc.

As I was about to give up, I've enabled the following and.... Bingo.

It was not needed on other PC's with the exact same configuration.
I don't think I saw any mention of this elsewhere so hopefully this will help avoid wasting a number of hours troubleshooting.

cheers.

The Robman · Posted: Thu Sep 21, 2023 10:01 am Post subject:

You don't mention how to get to that menu screen that you posted.
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

ylaviolette · Joined: 17 Feb 2009 Posts: 134

Good point:

Device manager - Ports COM & LPT - CH340 - Port Settings - advanced.

The Robman · Posted: Thu Sep 21, 2023 5:34 pm Post subject:

Ah, I got it:
1. Device Manager
2. Ports (COMP & LPT)
3. Right click on the relevant entry
4. Select Properties
5. On the pop-up screen, select the Port Settings tab
6. Click on the Advanced button

I don't know if it's because I don't have a JP1 cable plugged in right now, but the version of that screen that I get stops at the COM port selection, I don't have the 3 check boxes below it.
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

mathdon · Posted: Sat Sep 23, 2023 7:51 am Post subject:

Like Rob, the version of that screen that I get stops at the COM port selection, I don't have the 3 check boxes below it. That is with an Arduino with a CH340 chip plugged in, though it is configured as an AIRWidget not as a JP! EEPROM cable. I can't believe that makes any difference, so I think those options must be specific to your new PC. Do they appear on your other PCs that don't need this setting? What PC is your new one? Are you aware of anything unusual about it? I have looked up about the Serial Port Enumerator but everything I find says that it is needed to identify a legacy serial mouse, which makes little sense in your case.
_________________
Graham

The Robman · Posted: Sat Sep 23, 2023 4:06 pm Post subject:

Could it be Windows 10 vs. 11? I'm using Win10.
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

mathdon · Posted: Sun Sep 24, 2023 6:29 am Post subject: