FOME Universal ECU PCB

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: Atlas (recommended) Polygonus 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 Header (included, soldered!) Molex 643330100 Mating plugs Molex 643191218 + 643193211 + 643203319