Web Serial Console

The SiMa.ai Web Serial Console connects to SiMa.ai DevKits from a Chromium-based browser through the Web Serial API. No local installation is required. Open the tool in a compatible browser, plug in your DevKit via USB, and connect.

Launch Web Serial Console

Requirements

The Web Serial API is only available in Chromium-based browsers:

• Google Chrome (recommended)
• Microsoft Edge

note

Firefox and Safari do not support the Web Serial API and cannot be used with this tool.

Linux: dialout group access

On Linux, serial devices such as /dev/ttyUSB0 are owned by root:dialout with mode crw-rw----. New user accounts are not in the dialout group by default, so the browser cannot open the device and your DevKit will not appear in the serial port picker — even though lsusb and dmesg show the USB to Serial adapter and /dev/ttyUSB0 exists.

Add your user to the dialout group:

sudo usermod -aG dialout $USER

Then log out and back in, or reboot — the group change does not apply to your current session. Verify with:

groups | grep dialout

note

This step applies to Linux only. macOS and Windows do not require it.

Getting Started

1. Connect your SiMa.ai DevKit to your computer using a USB to Serial cable.
2. Open the Web Serial Console in a supported browser.
3. Click [+] New Connection in the command palette.
4. Select the serial port corresponding to your DevKit from the browser pop-up and click Connect.
5. The console detects the login prompt and logs in with the default credentials (sima/edgeai).

Interface

Terminal

Type commands directly into the terminal window and press Enter to execute them on the connected DevKit.

Command Palette

The command palette at the bottom of the page provides quick access to common actions:

Button	Action
[+] New Connection	Open a new connection tab for an additional DevKit
Settings	Configure baud rate and flow control before connecting
Login	Send the default credentials (sima/edgeai)
Networking	Run ifconfig on the active DevKit
Disk Space	Run df -h on the active DevKit
Build	Display /etc/buildinfo from the active DevKit
Logout	Send the logout command to the active DevKit
Clear	Clear the terminal output
Light/Dark Mode	Toggle the UI theme
Fullscreen	Enter fullscreen mode
[Hide]	Collapse the command palette for a larger terminal view

Multiple Connections

The console can connect to multiple DevKits at the same time. Each connection opens as a separate tab at the top of the terminal area. Click a tab to switch between connections, or click × on a tab to disconnect and close that session.

Disconnecting

Click × on a connection tab to disconnect. The console sends logout to the DevKit before closing the connection.