Interactive Demo

This demonstration runs with the same WebAssembly binaries intended for ECU deployment – in the browser, without modification. The components are written in Rust, compiled once to WebAssembly, and connected via formal WIT interfaces.

What the demo concretely shows:

• Single artefact – the same .wasm files running here in the browser are designed to run unchanged on the target ECU
• Versioned interfaces – WIT interfaces such as aptiv:antipinch/motor-driver-v2@0.1.0 define the component protocol in a machine-readable, toolchain-neutral format

Three WebAssembly components work together:

• Anti-Pinch – Detects pinch forces via motor current measurement
• Motor Driver – Simulates the window lift motor with realistic current behaviour
• Soft Start/Stop – Smooth acceleration and deceleration via PWM ramps

Use the Up/Down buttons to move the window. When the Auto switch is active, the window runs automatically until it reaches the end stop or a pinch event is detected.

Once the window is open far enough (more than 14 % opening), the Finger switch becomes available. This reveals virtual fingers that can be positioned anywhere in the 20 %–85 % opening range using the Finger slider, placing them in the window’s path to simulate a pinch event. The slider is bounded at the bottom by the current window position — the fingers cannot be placed below the window’s top edge.

Outside the 20 %–85 % range the Finger switch is disabled and the slider has no effect.

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