Interactive Classroom Presentation Projector

I need a business-grade projector purpose-built for classrooms that lets teachers and students interact directly with the projected image. The core requirement is an integrated interactive touch-screen capability—think smooth, low-latency annotation right on the board—paired with the brightness and reliability expected from a presentation unit. Here’s what I’m after: • Hardware: a projection engine bright enough for well-lit rooms, plus the touch-enabled overlay or sensor array that will register multiple fingers or a stylus without calibration headaches. • Software: driver package or embedded firmware so the touch layer appears as a standard HID device to Windows, macOS, and ChromeOS. Annotation tools or whiteboard software hooks are a bonus. • Mechanical design: compact housing that can be ceiling-mounted or set on a cart, with straightforward lens shift or keystone correction to hit a wide classroom screen. • Documentation & files: CAD drawings, BOM with sourcing links, wiring diagrams, and a step-by-step guide that a school tech team could follow to assemble or maintain the unit. • Prototype validation: short video or live demo proving touch accuracy, response time, and image uniformity. While the must-have is interactive touch, I’m open to recommendations on optional extras—wireless connectivity or even a 4 K optical block—so feel free to flag those if they strengthen the overall design. I’ll review progress in logical milestones: concept, detailed design, prototype, final refinements. Once each stage meets the agreed acceptance tests (touch accuracy within ±2 mm across the screen, minimum 3 000 lumens real-world output, and plug-and-play USB recognition on the three major OSs), I’ll release the sign-off so we can move to the next phase. If you have a track record in projector optics, interactive whiteboards, or similar embedded systems, let’s get this classroom-ready solution built.