Serial Port Monitor

A web-based serial port monitor built with Next.js and the Web Serial API.

Features

• Connect to serial devices via Web Serial API
• Real-time data monitoring with green terminal-style display
• Dark/Light mode support
• Configurable baud rates (300 to 2,000,000 bps) with custom input
• Auto-scroll functionality
• Audio notifications for received data
• Demo mode for testing
• Japanese character support (UTF-8)

Browser Support

• Chrome 89+
• Edge 89+
• Opera 75+

Requires HTTPS connection or localhost for Web Serial API access.

Development

npm install
npm run dev

Deployment

This project is configured for static export and can be deployed to:

• Cloudflare Pages
• Vercel
• GitHub Pages
• Any static hosting service

npm run build

The built files will be in the out directory.