Universal Engine Simulator Powered by Ardustim - Crank, Cam, Cam2, and Analog Outputs (Pre-Order)

$69.99

⚠ Back-Order Notice (Estimated shipping time: 2–3 weeks as of October 8, 2026)

A new batch of this product is currently in production. You are welcome to place an order now to reserve your spot in line for the incoming inventory.

Once inventory arrives, orders will ship within 2–3 business days.

Please note: Only new orders placed while this notice is active are affected by the back-order. All previous orders have already shipped.

Thank you for your patience!


The OpenLogicEFI Engine Simulator, powered by the Ardustim firmware, is a powerful tool for simulating engine operation and testing various sensor and control systems. This simulator can simulate three simultaneous digital trigger patterns—crank, cam, and cam2—through free and open-source software, making it a versatile and flexible tool for hardware testing and diagnostics.

Assembled Unit:
Fully assembled and ready to use, as shown in the product images.

Unassembled Kit:
Includes a PCB with all surface-mount (SMD) components pre-installed. All remaining through-hole components are included but must be installed by the end user.

⚠ Back-Order Notice (Estimated shipping time: 2–3 weeks as of October 8, 2026)

A new batch of this product is currently in production. You are welcome to place an order now to reserve your spot in line for the incoming inventory.

Once inventory arrives, orders will ship within 2–3 business days.

Please note: Only new orders placed while this notice is active are affected by the back-order. All previous orders have already shipped.

Thank you for your patience!


The OpenLogicEFI Engine Simulator, powered by the Ardustim firmware, is a powerful tool for simulating engine operation and testing various sensor and control systems. This simulator can simulate three simultaneous digital trigger patterns—crank, cam, and cam2—through free and open-source software, making it a versatile and flexible tool for hardware testing and diagnostics.

Assembled Unit:
Fully assembled and ready to use, as shown in the product images.

Unassembled Kit:
Includes a PCB with all surface-mount (SMD) components pre-installed. All remaining through-hole components are included but must be installed by the end user.

Digital Features:

  • Included Arduino Nano with USB-C Connector: The included Arduino Nano comes with a USB-C connector (cable not included).

  • Simulate Various Patterns: The simulator features several crank and camshaft signals for testing various patterns (see Ardustim GitHub). RPM can be controlled with an onboard potentiometer.

  • Optocoupler Controlled Output: Signal outputs with external pull-ups higher than 5V can be used.

  • Optional Onboard 5V Pull-Up: Jumper selectable 5V onboard pull-up is available if required (rarely needed, but there if you do).

  • Simulate Sensor Readings: Individually simulate TPS, MAP, coolant temperature, intake air temperature, and O2 (1V and 5V jumper selectable) sensors with onboard potentiometers.

  • Test ECU Inputs: The momentary button with selectable output (GND / 5V) can be used to test ECU inputs such as launch control.

  • LED Indicators: The simulator features 8 fuel injector LEDs, 8 ignition LEDs, and 4 additional ground-switching LEDs (fuel pump, fan, 2 spare) for easy visual monitoring of engine operation.

  • Easy to Use: Screw terminals make for easy universal use.