Raspberry Pi Pico Model Railway Point Controller - Design and Implementation

Learn how to build a model railway point controller using a Raspberry Pi Pico microcontroller in this detailed project walkthrough video. Explore the complete development process of a solenoid-based point control system for HO/OO model railways, from PCB design and electronic components to programming in MicroPython. Discover the implementation of a Capacitor Discharge Unit, integration of MCP23008 I2C GPIO expander for switch and LED control, and creation of a custom laser-cut enclosure. Follow along with comprehensive explanations of circuit diagrams, component layouts, internal wiring, and GUI application design. Master practical techniques for combining hardware and software elements to create a functional railway control system, complete with web server capabilities using the Raspberry Pi Pico W.