DIYEFI.org Forum

Here's a software example for use with the FTDI serial part above (parallel mode i think?)

http://www.rasmicro.com/USB.htm

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For power MOSFETs I propose the use of TO220 parts for a number of reasons : compatibility durability current handling capability ease of fitment ease of replacement heat dissipation and if used like this : http://i260.photobucket.com/albums/ii15/diyefi/EBCtrace2.jpg http://i260.photobucket.com/albu...

Another alternative for usb <> uart interface doing away with the rs232 physical transfer layer : http://www.ftdichip.com/Images/MM232R.jpg http://www.ftdichip.com/Products/EvaluationKits/MM232R.htm http://apple.clickandbuild.com/cnb/shop/ftdichip?op=catalogue-products-null&prodCategoryID=40&...

Awesome work KW, I've uploaded your image of it and posted it here for viewing :



Thank you very much!

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Not everyone is going to want this (only track day enthusiasts really) but this would be easy to interface with and datalog : http://www.evbplus.com/accelerometer_3axis/tinybee.jpg http://www.evbplus.com/tinybee_accelerometer_3axis.html application notes : http://www.kionix.com/sensors/application-n...

None of these systems are particularly effective because of the exterior noise. What I would like to do is figure out an analog filter circuit that not only removes a lot of the garbage noise, but is synced with the engine phase for windowing. I propose that this could be done by having an analog pr...

Hi, here are some ideas for prototyping area in the middle of our main boards : softec 9s12xdp512 proto board proto area : http://www.s12x.com/images/sks12xdp512a/P1010063a.jpg full resolution http://www.s12x.com/images/sks12xdp512a/P1010063.JPG closeup of processor : http://www.s12x.com/images/sks1...

Because of known issues with the quality of RS232 serial comms, alongside implementing some checksumming in the firmware and tuning software using this chip on board is going to keep the errors low and speed high. http://i260.photobucket.com/albums/ii15/diyefi/cp2102_img.jpg http://www.sparkfun.com/...

Alex, you are 100% right, the supply and reference should be separated. The current design I have drawn up has three power feeds and two ground feeds for exactly this purpose and one other purpose also. Preliminary pin listings : Power ground Signal ground Signal supply Power supply Battery referenc...

You are right. I remember something funny about that link when I posted it. I'll have a bit of a research around and see what else I can find that's interesting reading. Now that this thread is here it may as well be put to good use!

Thanks,

Admin.