8086tiny

This browser has no WebSerial.

The console talks to the dongle over the USB cable using navigator.serial, which today exists only in Chrome, Edge and other Chromium browsers on desktop. Firefox and Safari have both declined to implement it. There is no polyfill — a web page cannot reach a serial port any other way.

Open this page in Chrome or Edge and the Connect button will work.

This page needs HTTPS.

WebSerial is only available in a secure context — an https:// origin, or localhost. It is not available over plain http://, and it is not available from a file:// URL, so you cannot just open this file from disk.

Host it (Cloudflare Pages, or python3 -m http.server and visit http://localhost:8000).

Plug in the dongle, then press Connect.

You get a terminal on the PC that is running inside the dongle: FreeDOS, on an emulated 8086, over the USB cable. Nothing here goes to a network — not the page (it is cached and runs offline), and certainly not the device, which in the solo build has no radio at all.

• Pick the dongle's serial port in the chooser Chrome puts up.
• The page hands the device's shell over to the PC and shows you its screen.
• Ctrl+] gives the shell back — as does Disconnect.