Alfa145
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| posted on 11/2/13 at 07:11 PM |
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USB to Serial for ECU
Any recommendations for a USB to Serial adapter to talk to my Emerald, or will any old eBay item do?
I don't quite fancy coughing up £20 for one from Emerald when it should really be included in the kit, I can't remember the last time I
saw a serial port on a laptop
[Edited on 11/2/13 by Alfa145]
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Staple balls
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| posted on 11/2/13 at 07:25 PM |
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I seem to remember maplins doing one (I think it's this) that worked
with a lot of stuff, but for the price, you're probably better off just getting the emerald one.
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Slimy38
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| posted on 11/2/13 at 07:27 PM |
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After spending god knows how long trying to get USB to serial adaptors working, I gave up and used a laptop with a serial port instead!
They are majorly unreliable if you get the wrong one, and even UK supplier seem to be selling chinese carp. It probably sounds bad, but if Emerald
recommend one I'd be tempted to use that.
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scudderfish
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| posted on 11/2/13 at 07:31 PM |
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There are two main chipsets used in these, Prolific 2303 and FTDI. The Megasquirts with a built in adapter use the FTDI set, and the guy who sells
TunerStudio sells FTDI ones too. I've got two Prolific ones, one works, one doesn't. I've just bought an FTDI one from ebay which
is due soon. They seem to be £10-£20 on there.
Regards,
Dave
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perksy
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| posted on 11/2/13 at 07:58 PM |
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The cheapy ones can be a bloody nightmare to get to work and be reliable 
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will121
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| posted on 11/2/13 at 08:53 PM |
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Brought mine from emerald and never had an issue with it, worth it in my opinion rather than buying a cheap one that never worked
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McLannahan
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| posted on 11/2/13 at 09:04 PM |
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I have one that you can have for a few quid if you like?
It was new (came with my ETB Digidash Lite ) and I've never used it. I don't have the drivers sadly but I believe it's the Prolific
one, at least that what they still supply with the DDLite!
Drivers are here and it appears to work fine on my laptop. Might be worth a go?
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41
£6 posted?
Cheers
Michael
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eddie99
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| posted on 11/2/13 at 10:23 PM |
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Agree with above, Most of them are so unreliable!
http://www.elitemotorsporteng.co.uk/
Twitter: @Elitemotoreng
Facebook: http://www.facebook.com/pages/Elite-Motorsport-Engineering/153409081394323
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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matt_gsxr
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| posted on 11/2/13 at 10:35 PM |
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As above the FDTI ones are the best but more expensive (£10-15 quid), the prolific are less robust but much cheaper.
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chris-g
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| posted on 11/2/13 at 11:05 PM |
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I have been looking at getting a PCMCIA to serial card from my laptop to connect to Megasquirt. Anyone uses one of these and was it any good? They
seem quite cheap on ebay.
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coyoteboy
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| posted on 11/2/13 at 11:18 PM |
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Tried about 6 different cheapy ebay ones [USB>Serial] (£2 each type) with megasquirts (MS1 and MS2) and so far been unable to get one that
DIDN'T work with it!
Maybe the Emerald ECU uses different/stricter comms but for buttons I'd try an ebay special first.
[Edited on 11/2/13 by coyoteboy]
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r1_pete
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| posted on 12/2/13 at 07:47 AM |
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I also found that many which work with XP or W7 will not work with Vista.
I have a PCMCIA to Serial card, free if you can collect or cover the postage...
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Slimy38
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| posted on 12/2/13 at 08:39 AM |
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quote:
Originally posted by r1_pete
I also found that many which work with XP or W7 will not work with Vista.
Vista is a frikkin' nightmare with all sorts of stuff!! 
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r1_pete
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| posted on 12/2/13 at 09:29 AM |
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quote:
Originally posted by Slimy38
Vista is a frikkin' nightmare with all sorts of stuff!!
Are you sure you want to say that??
Are you really sure you want to say that??
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chris-g
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| posted on 12/2/13 at 09:34 AM |
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quote:
Originally posted by r1_pete
I have a PCMCIA to Serial card, free if you can collect or cover the postage...
You have a U2U.
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Alfa145
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| posted on 12/2/13 at 10:08 AM |
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Thanks for the replies and offers. I want to avoid the old case of will it wont it drivers issues so as there doesn't seem to be a guaranteed
version I'll have to plumb for the Emerald rip off. (Which I think should have been included with the ECU)
Already ordered before I saw your post R1_Pete (grr must check forum before ordering) Thanks for the offer.
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lsdweb
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| posted on 12/2/13 at 11:37 AM |
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I tried a few cheap ones a few years ago and had all sorts of problems connecting to my Emerald ECU. I bought the one from Emerald and it worked
perfectly every time.
Wyn
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MikeRJ
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| posted on 12/2/13 at 06:39 PM |
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quote:
Originally posted by scudderfish
There are two main chipsets used in these, Prolific 2303 and FTDI. The Megasquirts with a built in adapter use the FTDI set, and the guy who sells
TunerStudio sells FTDI ones too. I've got two Prolific ones, one works, one doesn't. I've just bought an FTDI one from ebay which
is due soon. They seem to be £10-£20 on there.
Regards,
Dave
The main issue with the Prolific based adapters is the large number of counterfeit PL2303 devices being made in China. You could say it's quite
prolific in fact (Badoom tshh).
The counterfeit devices only seem to work reliably with older versions of the driver, so this may explain why one device works and one doesn't.
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