Shared Projects by PSIG

Shared Projects by PSIG

DRV+ULN v1 Stepper IAC and Aux Expansion outputs for EFI

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2 layer board of 1.07 x 1.90 inches (27.2 x 48.3 mm)
Uploaded: July 23, 2025
Shared: July 27, 2025
Total Price: $10.15

Expansion board for EFI stepper IAC with DRV8825 module, and 4 additional 1-amp outputs using a ULN2803. Intended for DIY-style EFI projects such as Speeduino, Megasquirt and RusEFI. More info: https://speeduino.com/forum/viewtopic.php?t=1399

Expansion board for EFI stepper IAC with DRV8825 module, and 4 additional 1-amp outputs using a ULN2803. Intended for DIY-style EFI projects such as Speeduino, Megasquirt and RusEFI. More info: https://speeduino.com/forum/viewtopic.php?t=1399

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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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Speeduino v0.4.2 final

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2 layer board of 3.94 x 3.94 inches (100.0 x 100.0 mm)
Uploaded: September 12, 2016
Shared: September 12, 2016
Total Price: $77.45

Speeduino Logo Working Arduino-based EFI, ECM, ECU.
DIY engine fuel and ignition control
Details: Speeduino Overview

Speeduino Logo Working Arduino-based EFI, ECM, ECU.
DIY engine fuel and ignition control
Details: Speeduino Overview

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  • Actions

      Ordering shared project

      Hey there! Before ordering, make sure you have all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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