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✨ Why CO2 Logger Viewer?

Problem	Solution
📂 Manually copying CSV files from your Flipper	🔌 Direct USB connection — reads data straight from your device
🖥️ Opening spreadsheets to visualize data	📊 Instant charts — beautiful visualization in seconds
⚙️ Installing drivers and desktop apps	🌐 Browser-based — works in Chrome/Edge, no installation
📱 Mobile unfriendly workflows	📤 CSV upload fallback — works on any device

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📸 Screenshots

Clean, minimal interface

Interactive CO2 chart with zoom & pan

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🚀 Quick Start

Option 1: Direct USB Connection (Recommended)

1. Connect your Flipper Zero via USB
2. Close qFlipper (it locks the serial port)
3. Open the app in Chrome or Edge
4. Click "Connect USB" → Select your Flipper
5. Done! Your CO2 data loads automatically

Option 2: Manual CSV Upload

Works on any browser — just click Upload CSV and select the file from your Flipper's SD card.

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🔗 Live Demo

👉 Try it now at flipperco2.com

No installation needed — just open in Chrome or Edge and connect your Flipper!

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🛠️ How It Works

┌─────────────────┐    Web Serial API    ┌──────────────────┐
│  Flipper Zero   │ ◄─────────────────► │  Browser App     │
│  CO2 Logger     │      USB Serial      │  Chart.js        │
│  (CSV on SD)    │                      │  Visualization   │
└─────────────────┘                      └──────────────────┘

1. Connects to your Flipper Zero over USB using the Web Serial API
2. Reads /ext/apps_data/co2_logger/co2_log.csv via the Flipper CLI
3. Parses the CSV data and renders an interactive time-series chart
4. Lets you explore with zoom, pan, and time range selection

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💻 Browser Support

Browser	USB Connection	CSV Upload
Chrome	✅	✅
Edge	✅	✅
Firefox	❌	✅
Safari	❌	✅

Note: Web Serial API is required for direct USB connection. Unsupported browsers can still use the CSV upload feature.

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⚙️ Configuration

Setting	Default	Description
CSV Path	/ext/apps_data/co2_logger/co2_log.csv	Path on Flipper's SD card
Baud Rate	230400	Serial communication speed

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🤝 Related Projects

• CO2 Logger (Flipper App) — The companion Flipper Zero app that logs CO2 data

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📜 License

MIT © Harry O'Brien

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