This repository contains production-grade firmware for a low-power, autonomous audio recorder based on the ESP32-S3. The device is designed for battery-powered operation, recording high-quality audio to an SD card and automatically uploading the files to any S3-compatible cloud storage service (like AWS S3, Minio, or Wasabi).

ESP32-S3 camera firmware for Seeed Studio XIAO board with BLE connectivity, battery management, audio support (Opus codec), LED indicators, and comprehensive API. Features OV2640/OV5640 camera support and includes Python orchestration tools.

The Patient Health Tracking System is a wearable IoT-based solution designed to continuously monitor a person’s heart rate, blood oxygen (SpO₂), and movement for fall detection. In emergency situations—such as abnormal vital signs or a detected fall—the device automatically sends an SMS alert with the patient’s real-time location to a caregiver or