Fitbit Lucid Trainer

Fitbit Lucid Trainer is a Fitbit OS application designed to capture real-time sleep-related biometric data from compatible Fitbit smartwatches and transmit it to an external REST API. It serves as a data collection tool specifically for integration with the lucid-trainer Android app, enabling advanced sleep analysis and feedback systems.

Key Features

• Biometric Data Capture — Samples and averages accelerometer, heart rate, and sleep sensor data at configurable intervals (default: one minute).
• External REST Integration — Posts formatted JSON payloads containing sensor readings and session metadata to a configurable HTTPS endpoint.
• Session Management — Provides a toggle-based interface to start and stop data capture sessions with visual feedback on connection status and duration.
• Android App Integration — Includes a secondary screen for sending event commands (e.g., sound routines) to the paired Android app and a sleep button to stop playback or interrupt prompts.
• Gesture-Based Controls — Allows view navigation via swipe gestures and short pauses in prompting via wrist movement detection.

Philosophy

The project focuses on providing a reliable, configurable bridge between Fitbit's sensor capabilities and external applications, emphasizing simplicity in user interaction and flexibility in data destination.