Health Tech and Wearables
Aria Pendant
Wearable BLE Audio Capture Device
Overview
A wearable BLE audio pendant that captures voice interactions using dual microphones, streams LC3-compressed audio to a paired iOS app, and supports wake-word detection and OTA firmware updates.
Features
Dual-mic BLE audio capture with LC3 compression
Wake-word detection ('Hey Aria') with LED feedback
Offline flash storage, syncs audio on reconnect
Secure OTA firmware updates via BLE DFU
Tech Stack
Deep Dive
BLE Audio Capture & Streaming
Captures high-quality audio using dual microphones and streams LC3-compressed frames to iOS over BLE for low-latency voice experiences.
Wake Word & User Feedback
Supports continuous wake-word detection ('Hey Aria') and uses LED patterns plus button actions to communicate state and trigger common actions.
Offline Storage & OTA Updates
Records audio to onboard flash when disconnected, syncs when reconnected, and supports secure over-the-air firmware updates via BLE DFU.
Highlights
This project highlights a robust wearable audio platform—optimized for reliable BLE performance, power-aware modes, and seamless app integration.
