C200 Controller

macOS dashboard for wireless control of Canon C200 cameras via an ESP32-S3 hardware bridge.

Screenshots

Dashboard screenshots pending — see docs/images/ folder

Features

• Multi-camera dashboard — monitor and control multiple C200s simultaneously
• Real-time state — WebSocket push updates from ESP32 bridge (no manual refresh)
• Camera controls — iris, ISO, shutter speed, ND filter, white balance, AE shift
• Record toggle — start/stop recording remotely with visual feedback
• Presets — save and recall camera settings (aperture, ISO, shutter, ND, WB, AE shift)
• Auto-reconnect — automatically retry failed connections every 10 seconds
• Bonjour discovery — ESP32 bridges appear automatically on the local network
• Direct connection — connect to Canon C200 without an ESP32 bridge (limited)
• Card flip UI — each camera tile flips to reveal connection settings and controls

Requirements

• macOS 13.0 or later
• Apple Silicon (primary) or Intel (untested)
• Local network with mDNS/Bonjour (standard on most networks)
• One or more ESP32-S3 bridge boards flashed with the matching firmware
  • Use the companion ESP32Flasher app for one-click flashing
• Canon C200 with Browser Remote enabled on its network port
  • Firmware default credentials: admin / admin

Installation

1. Download C200Controller-v1.0.0-alpha-aarch64.zip from Releases
2. Extract the zip and move C200Controller.app to your Applications folder
3. Double-click to open — macOS will block it the first time
4. Go to System Settings → Privacy & Security and click Open Anyway
5. The app opens normally from that point on

Usage

Adding a Camera

Via Bonjour (automatic):

1. Flash the ESP32 bridge with your WiFi credentials
2. Power on the bridge — it appears in the dashboard automatically
3. Click the camera tile to connect

Manual ESP32:

1. Click + in the toolbar
2. Enter the ESP32's IP address

Direct camera:

1. Enable Browser Remote on the Canon C200 (Menu → Network → Browser Remote)
2. Click + → Direct Camera
3. Enter the camera's IP address

Using Presets

1. Click Edit in the Presets panel (left sidebar)
2. Camera metric circles dim — click each circle you want to include
3. Included circles show the current camera value in green
4. Click Save — enter a preset name
5. Click Recall to apply a preset to all connected cameras

Auto-Reconnect

Toggle Auto-Reconnect on the camera tile back (flip the card). When enabled, the app retries connections every 10 seconds after a failure.

Configuration

All configuration is stored in UserDefaults — no config files needed.

• Camera list persists across launches
• Presets persist across launches
• Auto-reconnect setting persists across launches

Building from Source

Prerequisites

• Xcode Command Line Tools: xcode-select --install
• Swift 5.9+

Build

git clone https://github.com/NorthwoodsCommunityChurch/avl-c200-controller.git
cd avl-c200-controller/C200Controller
bash build.sh

The built app opens automatically. Find it at C200Controller/.build/release/C200Controller.app.

Project Structure

avl-c200-controller/
├── C200Controller/              macOS dashboard app (Swift/SwiftUI)
│   ├── Sources/
│   │   ├── C200ControllerApp.swift   App entry point
│   │   ├── Camera.swift              Camera state + control logic
│   │   ├── CameraManager.swift       Multi-camera management + discovery
│   │   ├── ContentView.swift         Main UI
│   │   ├── Logger.swift              Debug log writer
│   │   ├── Preset.swift              Preset data model
│   │   ├── PresetManager.swift       Preset persistence + recall
│   │   └── PresetsPanel.swift        Preset sidebar UI
│   ├── Package.swift
│   └── build.sh
├── companion-module/            Bitfocus Companion integration (incomplete)
│   ├── index.js
│   └── package.json
├── docs/
│   ├── PRD.md                   Product requirements
│   └── images/                  Screenshots
├── CANON_C200_API.md            Canon C200 Browser Remote API reference
├── BUILD.md                     Firmware build instructions
├── CREDITS.md
├── LICENSE
└── SECURITY.md

Network Architecture

Canon C200  ←──── Ethernet ────→  ESP32-S3 Bridge
                                         │
                                         └── WiFi ──→  C200 Controller (Mac)
                                         └── mDNS     (Bonjour discovery)

                                                            │
                                                   (future) └──→  Bitfocus Companion

Known Limitations / Alpha Status

• Dashboard has been lightly tested on a single-camera production setup
• Intel Mac compatibility untested
• Bitfocus Companion module is a skeleton — not functional yet
• Sparkle auto-updates not yet integrated (planned for stable release)
• Direct camera connection mode has reduced functionality vs. ESP32 bridge

License

MIT — see LICENSE

Credits

See CREDITS.md