This uses (up to) 3 Rotary Encoders (RE) and a Raspberry Pi Pico (Pico) to connect the REs to FlightGear Flight Simulator as a Pitch Trimwheel and HDG and CRS adjusters.
A configuration file is provided for FGFS, and no additional configuration is required.
The software will work fine with any or all the REs connected.
The file trimwheel.ino is for standard 4-bit gray code encoders, and the file CTS288.ino for CTS 288 encoders with 2-bit binary as provided by Leo Bodnar and others