BeanDeck

BeanDeck is a completely self-contained, portable retro-computing workstation built around a BeanZee Z80 single board computer core. The system integrates multiple specialized subsystems into a custom enclosure powered by an independent battery power supply. User input is handled by the BeanBoard QWERkY keyboard, which interfaces directly with the Z80 system to provide both typing capabilities and general-purpose input/output (GPIO) routing. Visual output is driven by an 800x480 TFT display panel managed by an RA8875 controller chip, allowing the system to render crisp graphical user interfaces and text without heavily taxing the main CPU. Persistent data storage and program loading are achieved through removable flash storage cartridges, which interface with the Z80 core via the BeanBoardSPI hardware extension board. On the software side, the system boots using Marvin monitor firmware to manage hardware interactions, runs a BASIC interpreter for high-level programming and execution, utilizes a dedicated RA8875 display driver for graphics rendering, and relies on a flash cartridge file system driver to manage read and write operations to the removable storage media. Together, these hardware and software layers create a fully functional, standalone microcomputer environment reminiscent of classic 8-bit systems but enhanced with modern peripheral controllers and display technology.