eTalking Stick: Smart Meeting Timer & Bluetooth Audio System

The eTalking Stick is an embedded smart timing and speaker management device designed to improve structure, fairness, and engagement during meetings and public discussions. Inspired by the traditional Native American talking stick concept, the system combines Bluetooth microphone functionality, intelligent countdown timing, vibration alerts, and an interactive user interface into a single handheld platform. The device enables speakers to connect wirelessly to Bluetooth audio systems while simultaneously managing speaking duration through customizable countdown timers and visual feedback mechanisms. A vibration alert system and high-visibility LED indicators provide intuitive real-time feedback to the speaker without disrupting the meeting flow. Engineered around a deterministic embedded firmware architecture, the system features a fully menu-driven graphical interface controlled using a multi-action click wheel and power button combination. The firmware handles Bluetooth connectivity, timer management, power control, vibration alerts, and user interactions through structured state-based logic, ensuring predictable and responsive device behavior.

From a hardware perspective, the project involved complete end-to-end embedded product development including PCB design, enclosure integration, power management, battery charging, user interface electronics, and embedded firmware implementation. The device operates from a removable 18650 lithium battery with USB-C charging support and was optimized for portability, long battery life, and reliable wireless audio performance. Beyond functionality, significant focus was placed on industrial design and user experience. Multiple enclosure iterations and PCB revisions were developed to achieve a compact, ergonomic, and production-ready handheld form factor suitable for professional meeting environments, conferences, and moderated discussions.