Train Simulator Controller: Metal Panels, Custom Headlight PCB, and More

After three years of building a physical UK Class 80x train simulator, the author upgrades from fragile hardboard panels to laser-cut, powder-coated steel, tests a custom headlight control PCB with selectable LEDs, and explores interfacing miniature AWS sunflower units that produce real horn and bell sounds. The post covers challenges like sourcing a six-position switch and adapting the I/O board for high-side switching.