Finalize Industrial Design
- Define the 2-inch outer diameter with a circular PCB layout.
- Establish a design for the perimeter cyan LED ring and central 1.28-inch round display cut-out.
- Specify the brushed dark titanium aesthetic and device robustness in design documentation.
Define Electronics Architecture
- Integrate the ESP32-S3 as the core MCU with wireless capabilities.
- Architect the power subsystem including battery, charger, and regulators to meet design constraints.
- Include peripheral interfaces for potential buttons, a microphone/speaker, and haptics.
Validation and Testing Preparation
- Set up test points and firmware hooks for LED ring and display functionality.
- Verify connections and components for robust performance and safety compliance.