Lightweight and clear modular data visualization for industrial control panels, home interfaces, and educational laboratory equipment. Fourwire SPI and I2C communication enable fast data transfer and easy integration with existing electronics projects. Includes comprehensive documentation and readytouse code examples to accelerate embedded system development and application deployment. The 1.51 expansion board pairs with a clear display to provide a wide viewing angle and a dual SPI/I2C interface for broad microcontroller compatibility. Designed for reliable performance with modular, compact construction suitable for tight or spaceconstrained installations. Use scenarios Industrial control panels: display realtime process data, status indicators, and alerts in machine rooms or on production lines with a compact, easytoread interface. Home automation and smart devices: provide local status dashboards and control options for lighting, climate, or security systems without relying solely on cloudbased interfaces. Educational labs and prototyping: facilitate handson learning of embedded systems, sensors, and microcontroller projects with readytorun code examples and clear visualization. Compatibility and performance highlights Supports both SPI and I2C protocols via a fourwire interface, enabling flexible wiring and compatibility with a wide range of microcontrollers. Dual SPI/I2C interface design enhances integration options across multiple projects and development platforms. Clear display optimized for quick readability and consistent viewing angles in variable lighting conditions. Lightweight construction suitable for portable or compact installations, with an expansion board that expands capabilities without adding significant bulk. Includes detailed documentation and example code to shorten development timelines and simplify setup.