TaiDoc TD‑42xx / Méry / DiCare WebHID Glucose Reader

A clean, browser‑native glucose meter reader for the TaiDoc TD‑4235 and its OEM variants (Méry, DiCare, Fora, GlucoSure, and others using the CP2110 USB HID bridge).
No drivers. No installs. No cloud. Everything runs locally in your browser using the WebHID API.

This project is designed for people who want a simple, privacy‑respecting way to extract their glucose readings on any platform.

📟 Device

🖼️ Screenshot

⭐ Features

• WebHID‑based - works directly in Chromium browsers
• No software installation required
• Reads all stored glucose records from TaiDoc TD‑42xx meters
• Supports OEM‑branded devices (Méry, DiCare, Fora, GlucoSure…)
• Live protocol log with TX/RX color‑coding
• Wake‑up frame handling for reliable communication
• Excel‑friendly clipboard export (TSV)
• CSV download option
• Responsive dashboard UI
• Local‑only processing - no data leaves your machine

🧩 Supported Devices

This tool supports the TaiDoc TD‑4235 and OEM variants using the CP2110 HID‑UART bridge, including:

• Méry glucose meters
• DiCare / DiCare-Fora variants
• Fora OEM models
• GlucoSure branded devices
• Other TD‑42xx family meters with identical protocol

If your device identifies as a CP2110 HID‑UART and speaks the TaiDoc short‑frame protocol, it will likely work.

🖥 Browser Compatibility

WebHID is currently supported only in:

• Chrome
• Microsoft Edge
• Brave
• Vivaldi
• Arc

Not supported:

• Firefox
• Safari
• Mobile browsers

If WebHID is unavailable, the UI will show a warning and disable the Connect button.

🚀 How to Use

1. Open the page in a supported browser
2. Connect your TaiDoc / Méry / DiCare glucose meter via USB
3. Click Connect & Sync
4. The device will wake, respond, and send all stored readings
5. View:
   • Table of readings
   • Summary (min/max/avg)
   • Trend chart
   • Protocol log
6. Click the entries pill to copy all readings to the clipboard (Excel‑friendly TSV)
7. Or download a CSV file

🛠 Technical Notes

• Implements the TaiDoc short‑frame protocol
• Handles wake‑up frames (0x54)
• Uses CP2110 HID reports (64‑byte packets)
• Robust frame scanning with byte‑shift resync
• Color‑coded TX/RX logging for debugging
• Clean ES‑module architecture
• All logic runs client‑side

🔒 Privacy

All data stays on your device.
Nothing is uploaded, stored, or transmitted anywhere.

⚠️ Disclaimer

This project is community‑maintained and not affiliated with TaiDoc, Méry, DiCare, Fora, or any OEM brand.
Always consult your healthcare provider for medical decisions.