CM4DISPBASE2.8A is a 2.8inch capacitive touch screen expansion board designed for the Raspberry Pi Compute Module 4 (CM4). It combines a compact display with a robust touch surface to create a practical CM4based touchscreen solution. Key features 2.8inch capacitive touch screen with 5point touch: delivers responsive input across multiple touch points for smooth navigation and control. quality touch surface: a fully integrated, wellfitted screen surface that provides a noticeably better touch experience than standard fitted displays. Durable display panel: 6H hardness tempered glass to enhance durability and safety during operation. Compact form factor: designed to be compact and closely match the CM4 footprint, with dimensions only slightly larger than the Compute Module 4 itself to minimize enclosure space. Specially designed for CM4: CM4DISPBASE2.8A baseboard is intended for use with Raspberry Pi Compute Module 4, enabling a dedicated touchscreen interface. Power and interface: powered via a USB TypeC interface with 5V/2.5A supply to ensure stable operation. Specifications and compatibility Model: CM4DISPBASE2.8A Display size: 2.8 inches Touch: capacitive, 5point Touch surface: integrated, with 6H tempered glass panel Power input: USB TypeC, 5V/2.5A Compatibility: designed for Raspberry Pi Compute Module 4 (CM4) Use scenarios Industrial control panel: integrate CM4DISPBASE2.8A into a compact control station to monitor sensors, adjust settings, and display process data in realtime. Robotics and automation HMI: use as a compact operator interface on a robot or automated system, providing direct touchscreen control and status display. Field data collection or kiosk solutions: deploy in portable or standalone installations where a small touchscreen interface is required for data entry, configuration, or information display. The CM4DISPBASE2.8A provides a compact, reliable touchscreen solution that preserves CM4 compatibility while offering a responsive 2.8inch display and durable touch surface suitable for a range of embedded applications.