🎛️ TrimWheel WIP

What is it?

A physical flight-simulator trim wheel controller built on an STM32 microcontroller. A rotary encoder mechanically translates wheel input into servo PWM signals, and a serial command interface lets the PC override the position directly. The kind of hardware peripheral that would cost a lot to buy from a sim hardware vendor.

How it Works

• Quadrature rotary encoder on PB8/PB7 — decoded via state machine to detect CW/CCW rotation
• Servo on PB9, controlled with writeMicroseconds() in the 500–2500µs range
• Each encoder step adjusts servo position incrementally
• Serial interface: send Servo: 0–100 to set absolute position from the PC
• Can be driven by flight sim plugins or a Python bridge script