Gluco-Monitor (DIY)

Gluco-Monitor is an open-source, low-cost device designed to display real-time glucose data from continuous glucose monitoring (CGM) systems such as FreeStyle Libre or Dexcom.

This project was originally developed to provide a simple, always-visible glucose display for everyday use — without needing to constantly check a smartphone.

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🚀 Features

• 📊 Real-time glucose display
• 📈 Trend indication (rising, falling, stable)
• 🕒 History visualization at a glance
• 📡 Wireless data retrieval from CGM apps (e.g., Libre / Dexcom)
• 💡 Simple and clean interface
• 🔧 Fully DIY and open-source
• 💰 Low cost (~$25)

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🧠 How It Works

Modern CGM systems like the FreeStyle Libre continuously measure glucose levels and transmit data to a smartphone every minute via Bluetooth (FreeStyle).

Gluco-Monitor connects to this ecosystem by retrieving glucose data (via compatible apps or APIs) and displaying it on a dedicated screen.

This allows users to:

• See their glucose instantly without unlocking their phone
• Monitor trends more easily
• Improve daily diabetes management

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🛠️ Hardware

Typical components include:

• ESP32-based board
• Small TFT display
• Power supply (USB or battery)

👉 Total cost is typically around $25

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💻 Software

The firmware is developed using:

• Arduino / PlatformIO
• Wi-Fi connectivity for data access
• Lightweight graphical interface

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📦 Installation

Quick Software installation here : 👉 https://f1atb.fr/gluco-monitor-diy/quick-software-installation/

or

1. Clone this repository:

git clone https://github.com/your-username/gluco-monitor.git

2. Open the project with PlatformIO or Arduino IDE

3. Upload to your ESP32 device

4. Configure your Wi-Fi and data source (Libre / Dexcom)

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🔗 Documentation & Build Guide

Full step-by-step instructions are available here:

👉 https://f1atb.fr/gluco-monitor-diy/

This includes:

• Hardware assembly
• Wiring diagrams
• Firmware setup
• Configuration details

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⚠️ Disclaimer

This project is not a medical device and must not be used for medical decisions.

Always rely on official CGM devices and medical advice for diabetes management.

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🤝 Contributing

Contributions are welcome!

Feel free to:

• Open issues
• Suggest improvements
• Submit pull requests

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📄 License

This project is open-source. See the LICENSE file for details.

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❤️ Acknowledgments

• CGM community and open-source contributors
• Projects like xDrip+ and Nightscout
• Developers working on diabetes technology

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⭐ Support the Project

If you like this project:

• ⭐ Star the repository
• Share it with others
• Build your own and contribute improvements!

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