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Possible to log CAN data on RCP MKI?
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That crystal should work!


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Brent Picasso
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Post C1 correct? 
Is C1 the correct form factor? Looks a bit small for the pads.... Can I solder the one end to the circle? Or does the circle not connect to the pad just to the right? Build list calls for "SMC_D" package. Somehow I bought "SMD/SMT."

Does it matter if it's polarized or not?

I finally got around to working on this.... This is some tough soldering! It's extremely difficult with a very fine tip soldering iron and magnifying glass. I thought I had pretty steady hands and good eyes for fine work, but this is near my limit.....




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Halfway complete CANx
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Good job so far!

You need a SMC D sized package for the capacitor, and it is polarized. It's a tantalum capacitor, and the polarity matches the band orientation on the PCB. Capacitance isn't critical; 15uF to 33uF should be fine.


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Components aren't mounted as straight as I'd like, but they should be functional..... I learned a lot from soldering the first board. That's why I ordered three PCB, because ordering 3 from OSHpark didn't really cost any more and gives me a few for practice. Wink

brentp wrote:
GTIspirit wrote:


* CPOL-USSMCD doesn't lead directly to a "polarized capacitor." Searching for a 10uF "polarized capacitor" yields results for bi-polar/non-polar and general purpose. Which is correct?

you can use a 10uF 1206 ceramic capacitor, 16v. Polarized capacitor not required.


This is what I ordered for 1206 10uF "C1" 1206YD106KAT2A
1206 is too small, will 1812 size work?
Mouser doesn't list a "SMC D" package, what is the equivalent case code?

The pads look smaller than x 0.12" so maybe "case code" 1808 is the right size? Except no product is available with capacitance 10uF - 33uF with that case code. Sad

Looking at capacitance range 10uF - 33uF the nearest "case code" is 1812, which is slightly bigger than the pads in the one direction. (If L1 is 1812, 1812 looks a bit big for C1.)

Does polarized matter, or not?

Is there is a recommended C1 capacitor at Mouser.com?

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These are the correct capacitors:

https://www.ebay.com/sch/i.html?_osacat=0&_odkw=tantalum+capacitor+d+case&_from=R40&_from=R40&_trksid=p2334524.m570.l1313.TR0.TRC0.H0.Xtantalum+capacitor+d+case+smd.TRS0&_nkw=tantalum+capacitor+d+case+smd&_sacat=0

https://www.mouser.com/Search/Refine.aspx?Keyword=tantalum+capacitor+d+case+smd

Narrow your search for a 10-33uF variant, it's not a critical value.

Good luck!


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Sorry to revive a dead thread...

Is the circuit board layout and BOM still available for the canx? The Github link only has firmware in it.
I have an original Race Capture Pro MK1 and would like to start using the can features on it but never
purchased the can board when I got the Race Capture.
If the canx info isn't available anymore, can I use the OBDii adapter for the RCP MK2 and just use the CAN pins from the OBDII plug?


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Bump,

Anyone have these files still?


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-Billy C
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Hi,

The CANx project for MK1 was actually renamed; it is here:
https://github.com/autosportlabs/RaceCapturePro_MK1_CAN

We recycled the CANx name to represent a general purpose mini CAN development board, not related to RaceCapture/Pro MK1 at all.

Sorry for the confusion, and we hope this helps!


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