For discussion of Speeduino compatible boards designed / built by other members of the forum and for guidance around making such a board
#64935
Hello folks, I made this design based on version 0.4.3d, it uses all the same components except for the Arduino, which here is a Mini PRO (obviously), and two outputs that in version 0.4.3d use DIP mosfets, and in this design, I used TO220.

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https://www.pcbway.com/project/sharepro ... zfrD-gkDXA

Note: I have only performed tests on the workbench; I have not yet tested it in the car.
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#65100
toddTR6 wrote: Mon Oct 02, 2023 5:56 pm Looks Nice.

What are the dimensions of the board and what is the case you are using?
These case are available at AliExpress.
Some of the suppliers post the case dimensions on the listing.
#69608
I made some updates to the board, although the initial version has worked without problems in several vehicles.

changes:
-Jumper connections are now soldered pads;
-Added individual decoupling capacitors for Gate Drivers (TC4424);
-Added protection diode for 5v line;
-Added capacitor location for stepper motor driver (recommended in datasheet);

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