flutter_ppg 0.1.2

A Flutter package for camera-based PPG (Photoplethysmography) signal processing. Extracts RR intervals from camera frames for heart rate and HRV analysis.

Changelog

All notable changes to this project will be documented in this file.

0.1.2 - 2026-01-12

Changed

• Updated camera dependency to ^0.11.3.

0.1.1 - 2026-01-12

Changed

• Consolidated example app into single file for better pub.dev visibility.

0.1.0 - 2026-01-12

Added

• Initial release of flutter_ppg package
• FlutterPPGService - Main orchestrator for PPG signal processing
• SignalProcessor - Red channel extraction and bandpass filtering
• PeakDetector - Heartbeat detection with minimum distance enforcement
• SignalQualityAssessor - Real-time signal quality assessment (Good/Fair/Poor)
• OutlierFilter - IQR-based outlier removal for RR intervals
• RingBuffer - Efficient sliding window utility
• Example app with:
  • Dual waveform visualization (Raw vs Filtered)
  • Peak markers on filtered signal
  • RR interval history display
  • Real-time SNR and quality stats
  • Start/Stop control with 30-second auto-timeout