Design a combo of smart pen and holographic device

About the Challenge This design challenge invites innovators to conceptualize and prototype a smart learning system. The goal is to develop two devices: A smart pen that digitizes writing and drawing by tracking motion, plus a holographic pin device that captures hand gestures in the air for writing, drawing, and communication. Your task is to design for both the devices, blending precision hardware, intuitive interaction, and accessible digital capture technology — making analog writing and natural motion as powerful as modern computing. This challenge explores how future humans may communicate, sketch, or ideate: without keyboards, screens, or limitations. Bring your expertise in electronics, product design, embedded systems, and human-computer interaction — and help shape the next evolution of intuitive digital expression. What to Build Prototype for - 
A physical working smart pen
A wearable holographic motion-tracking pin
Your design should include the following for both the devices - 
A device form
Internal assembly breakdown
The whole workflow of software-hardware synergy to convert pen-written content and hand gestures into a digital (holographic) format.
Optional enhancements may include:
Pressure sensitivity or tilt recognition
AR projection guidance
AI-supported handwriting cleanup
Real-time multilingual transcription
Not required but encouraged for - 1) Cloud sync and offline mode, 2) Interoperability with digital whiteboards and design systems, and 3) Accessibility modes (for disabled users or motor skill support)