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Post by pmalta on Sept 2, 2018 21:25:48 GMT
Hi I am Paulo from Brazil and I found your project with my mechanic. He is an entusiast of car tunning and EFI.
I am electronic engineer with experience in military & cellular electronic hardware. I have a bench in my house and experience with SMD assembly. I have some experience with firmware.
I also have a friend with good firmware experience that worked for Magneti-Marelli and today is electronics test engineer at GM. He is interested in help me to make Rabbit ECU running here.
My mechanic has no electronics or english experience and asked me some help to assemble Rabbit ECU for tests.
I already printed your SCH, what software you used? I use Kicad here and plan to port your SCH to it. Depending on your software I can try import your SCH in Kicad. I'll need to make little changes due some components aren't easy to find here like your dual transistors.
I also plan to put arduino due in same board to have a more reliable unit. When finish it I can share, if you want.
Last question, what connector was used in your board? Depending on you model I'll have to change by one easier to find here.
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Post by oldgrey on Sept 9, 2018 1:21:36 GMT
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Post by Admin on Sept 11, 2018 13:42:34 GMT
Hi pmalta,
Welcome to the forum I hope the Rabbit ECU can help you with your project.
You can always buy the Arduino Due without headers and solder it direct to the Rabbit ECU if you are concerned about reliability.
The connector is Molex 502225.
I think the Rabbit ECU is good value at USD99 so you don't need to build your own PCB. Also there is a small profit made on the assembled PCB that allows the Rabbit ECU project to continue.
I'm not sure how many units you wish to make but if you have the resources to make commercial quantities or for commercial purposes then all I ask is you please observe the copyrights of both my Rabbit ECU Project and of the Arduino Due :-)
Matthew
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Post by pmalta on Sept 19, 2018 0:36:34 GMT
Matthew,
I'll check Molex connector spec.
Be sure I'll observe all copyrights if I design my own board.
I am considering do boards locally because in Brazil we have a nightmare of taxes to import boards like these. If the supplier isn't a "formal" store importation can be more complicated. I'm saying this because I work as application engineer for a semiconductor distributor and we work with importation all the time.
To have an idea, a board like this costing USD 99 can easily cost another USD100 in FedEx/UPS/DHL and 60% taxes will be added to total cost (this is because is a low-volume importation) ... final cost easily reach USD320 In a first estimative manufacture board here will cost around USD 150
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Post by oldgrey on Sept 21, 2018 0:06:58 GMT
Is the circuit open, because I want to eventually have a stripped out version with a different plug so it's PNP.
If it's not open that's going to be a problem, but then again I think this is above me anyway without the full files because I see a 6 pin BZX84 - whatever that is - in the Cam and Crank - the section I need to get this running on the bench - that only has 3 pins. I have little elec experience, and at hobby level.
I've got a DUE and STM32DISCOVERY for another EFI system coming, so we will see what happens.
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