1 1

Happy Cactus Garage

FOME Universal ECU PCB

FOME Universal ECU PCB

$150.00 USD
$150.00 USD
Sale Sold out
Type

Source files available on FOME GitHub here.

This is an open-source ECU base board using the Molex 112-pin connector. It is intended to be wired-in to a custom wiring harness, or an OEM harness with the connectors cut off and replaced. NOT COMPATIBLE WITH ANY PLUG-AND-PLAY APPLICATION!

Requires a brain module to form a complete ECU:

Connectivity

  • USB-B
  • Dual CAN

Inputs

  • Dual wideband O2 sensor controllers using open source module (connected internally to CAN bus #2)
  • Dual VR crank/cam sensor inputs. VR input 2 uses adjustable threshold, suitable for low tooth count (single tooth cam, etc) applications (LS12 unavailable if used)
  • 11x analog voltage inputs (weak pulldown to ground to avoid floating)
  • 4x analog temperature inputs (2.7k pullup resistor to 5v)
  • 6 digital inputs with integrated 2.7k pullup resistor to 5v. Use for hall cam/crank sensors, switches, etc.

Outputs

  • 2x electronic throttle body H-bridge drivers
  • 20 lowside outputs (LS1-16), 8 with freewheel diodes (LS9-12 and IGN9-12)
  • 8 logic level ignition outputs (IGN1-8)
  • 8 ignition "dumb coil" IGBT drivers (IGN1-8, shared function with logic outputs, independent output pins)
  • Stepper motor driver footprint for stepper idle (LS9/10 outputs unavailable if used, not populated)

Mating Connectors

View full details