AR Glasses Board Design
Thought for 43 sec
To design a board you can “just plug into” a mini-projector, we need a few concrete facts about the projector and the overall headset:
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Video interface
• Does the projector accept HDMI, MIPI-DSI, LVDS, or something else?
• Resolution / refresh-rate target? -
Power requirements
• What voltage and current does the projector need?
• Will the glasses be battery-powered or tethered to a pack? -
On-board processing vs. external source
• Do you want the board itself to render the AR content (e.g., with a Raspberry Pi CM4, RK3566, Snapdragon XR, etc.), or simply pass video from an external device over a cable? -
Form-factor constraints
• Maximum PCB size and thickness?
• Connector placement (left temple, right temple, back-of-head module)? -
Peripherals and sensors
• IMU for head-tracking?
• Depth/ToF camera or outward-facing RGB?
• Ambient-light sensor for brightness control?
• Audio, touchpad, buttons, etc.? -
User I/O & power management
• USB-C for charging/data?
• Battery chemistry and capacity?
• On-board buck/boost regulators?
With those answers we can pick the right compute module (or video bridge), power-management ICs, sensors, and high-speed connectors, then move to schematic capture.
Could you supply at least (1) the projector model/datasheet or its interface and power specs, and (2) whether you want the board to generate the video itself or just forward video from another device?
Projector specs
Raspberry Pi CM4
Battery and boost
PCB form-factor
