The Mark I Trigger Pad page documents the complete design and development process of a custom-built MIDI controller designed for drummers. Visitors will see how the project evolved from early planning and component selection to schematic design, PCB layout, enclosure modeling, and 3D rendering. With detailed visuals, CAD diagrams, and progress photos, the page walks through the challenges of analog input constraints, the decision to use the Arduino Micro, and the hands-on build process that blends hardware engineering with musical utility. This project highlights a practical and original approach to creating a fully functional, performance-ready digital interface from the ground up.