OBDI circuit board group buy - ROUND 2
#47
Three Wheelin'
Well the States are not so far! I received mine today!! Thanks Colin! Thanks for organizing that. And the circuit is a piece of art!
During a short visit in Atlanta, I bought almost all the parts at radio shack. I see that some of us wonder about the box. Radio shack has hard ABS plastic boxes with an internal aluminum support (ref: project enclosure 6X3X2") It fits the width of the circuit quite well.
And now let's go for a "how to solder electronic parts" crash course
Cheers
During a short visit in Atlanta, I bought almost all the parts at radio shack. I see that some of us wonder about the box. Radio shack has hard ABS plastic boxes with an internal aluminum support (ref: project enclosure 6X3X2") It fits the width of the circuit quite well.
And now let's go for a "how to solder electronic parts" crash course
Cheers
#48
Hi all.
The component set and wiring is pretty straight forward BUT I don't see hookup directions for the OBD2 connector and serial port. It states where on the board in general BUT I do not see the specific hookup info i.e. which port to which. Does the OBD15 mean something i.e. a specific port? If so, what is the orientation of the plug that corresponds to it-likewise for the serial cable.
Thx
The component set and wiring is pretty straight forward BUT I don't see hookup directions for the OBD2 connector and serial port. It states where on the board in general BUT I do not see the specific hookup info i.e. which port to which. Does the OBD15 mean something i.e. a specific port? If so, what is the orientation of the plug that corresponds to it-likewise for the serial cable.
Thx
#49
Originally Posted by Jukelemon
I don't see hookup directions for the OBD2 connector and serial port. It states where on the board in general BUT I do not see the specific hookup info i.e. which port to which. Does the OBD15 mean something i.e. a specific port? If so, what is the orientation of the plug that corresponds to it-likewise for the serial cable.
Thx
Thx
The numbers on the OBD and Serial labels refer to the port pins. I think there may be tiny numbers on the OBD plug on the car, but here are the standard DB9 male and OBD2 female pin layouts.
It's important that these be right, so make sure you triple check them when doing the connectors!
EDIT - I saw your other post asking for help - go ahead and post questions here, or PM me. I've built 7 of these things now and will help you get it built as much as I can.
Last edited by cowtown; 04-02-2007 at 09:07 PM.
#51
Intermediate
Join Date: Jan 2007
Location: Cambridge, MA
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
If there is another run, or you find one in between the couch cushions, I'll take one.
Also, if anyone has an extra, I'm good with an ESD soldering iron and will assemble in trade for a bare board.
Thanks!
-fredo
Also, if anyone has an extra, I'm good with an ESD soldering iron and will assemble in trade for a bare board.
Thanks!
-fredo
#52
The main issue is I am wondering about the switch hookup (you answered that already) and the serial/obd connector hook up.
How do you know which wire to use and where i.e. are the ports numbered on the connectors AND they correspond to the circuit board?
How do you know which wire to use and where i.e. are the ports numbered on the connectors AND they correspond to the circuit board?
Same goes with the serial connection.
As well, I see a fuse component. I assume you are using a fuse holder on the circuit board? 12v supply?
I noticed that one pic had the LED's on the box. Makes sense so I assume that you terminate leads via wire.
Hope this helps. You'll get it up and running.
Colin
#54
Three Wheelin'
My "box" is ready gentlemen! But I found out that I don't have any plug on my laptop to receive the connector...Tomorrow morning at the computer shop to find a solution. May be a converter to usb?
Every connection was checked at least 3 times, and my soldering knowledge grew up at each component What I found the most difficult... to solder the wires to the connectors. The receiving pins on those connectors are quite small and close to each other.
Thanks again for the job Cowtown!
I'll Keep you informed
Cheers
Every connection was checked at least 3 times, and my soldering knowledge grew up at each component What I found the most difficult... to solder the wires to the connectors. The receiving pins on those connectors are quite small and close to each other.
Thanks again for the job Cowtown!
I'll Keep you informed
Cheers
#55
Sounds good JP. I think you may have a problem with a USB converter. I haven't tried one, but the 964 guys were running into issues. You might try adding a card that gives you a real serial port (if your computer is a desktop). If you've got a laptop, it might be best to borrow a machine with a working port just to verify the PCB is working before trying out a USB converter.
I got a question about the capacitor spots on the PCB. There are spaces for three, but only two are used. There was a debate about how much filtering was needed and I left the extra space on for those who want to use it. But every one I've built has worked fine with just the two caps.
Colin
I got a question about the capacitor spots on the PCB. There are spaces for three, but only two are used. There was a debate about how much filtering was needed and I left the extra space on for those who want to use it. But every one I've built has worked fine with just the two caps.
Colin
Last edited by cowtown; 04-18-2007 at 12:08 PM.
#57
Technical Guru
Rennlist Member
Rennlist Member
Could someone tie the two k-lines together and see if everything still works?
Make sure the USB -=> RS-232 converter uses an FTDI chip and you should be okay.
Originally Posted by cowtown
I think you may have a problem with a USB converter. I haven't tried one, but the 964 guys were running into issues.
#59
Addict
Rennlist Member
Rennlist Member
Join Date: Dec 2002
Location: Durham, NC (Go Duke!)
Posts: 1,184
Likes: 0
Received 0 Likes
on
0 Posts
I am late to this but just one basic question (and I tried that link but am told I have to download an application... so I did not):
What is the benefit of these boards? Do they convert an OBDII to OBDI and thereby negate the possibility of the CAI problem? Or am I barking up the wrong tree?
Just curious.
Thanks
What is the benefit of these boards? Do they convert an OBDII to OBDI and thereby negate the possibility of the CAI problem? Or am I barking up the wrong tree?
Just curious.
Thanks
#60
Addict
Rennlist Member
Rennlist Member
Wrong tree, Stedge ...
These boards allow the serial interface of your laptop to talk safely to the OBD port on your car. Then you can run the Scantool software to communicate with the ECU, CCU and other control units in your car, to interrogate and reset fault codes, look at sensor outputs etc. Pretty much what an OPC can do with a Bosch Hammer, PST2 etc.
Note this is for OBD1 systems, OBD2 systems are generally available .. your US 97 C4S will be OBD2 ..
cheers, Maurice
These boards allow the serial interface of your laptop to talk safely to the OBD port on your car. Then you can run the Scantool software to communicate with the ECU, CCU and other control units in your car, to interrogate and reset fault codes, look at sensor outputs etc. Pretty much what an OPC can do with a Bosch Hammer, PST2 etc.
Note this is for OBD1 systems, OBD2 systems are generally available .. your US 97 C4S will be OBD2 ..
cheers, Maurice