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LibDC-Swift

A modern Swift wrapper for libdivecomputer that enables communication with dive computers via Bluetooth Low Energy (BLE).

Overview

LibDC-Swift provides:

• BLE Communication - Wireless dive computer connectivity
• Data Parsing - Extract dive profiles, tank info, and sensor data
• Cross-Platform - macOS, iOS, visionOS support
• Device Fingerprinting - Download only new dives
• Real-Time Progress - Track download status with live activities

Quick Links

• Quick Start - Get up and running in minutes
• Supported Devices - Compatible dive computers
• Features - Complete feature list
• Troubleshooting - Common issues and solutions
• API Reference - Core APIs and usage

Key Features

Dive Data Extraction

• Depth profile (time-weighted average depth)
• Temperature (min/max/surface)
• Tank pressure and gas mixes
• Decompression data (stops, NDL, TTS)
• Sensor data (PPO2, CNS, heart rate)
• GPS location (if available)

BLE Transport

• Packet-boundary preservation for SLIP framing
• Compatible with all BLE dive computers in libdivecomputer
• Automatic connection management

Smart Downloads

• Fingerprint-based incremental downloads
• Only fetch new dives since last sync
• Persistent fingerprint storage

Requirements

• macOS: 12.0+
• iOS: 15.0+
• visionOS: 1.0+
• Xcode: 15.0+
• Swift: 5.9+

License

GNU Lesser General Public License v2.1 (LGPL-2.1)