Serial Monitor

Monitors your serial port and allows you to read and write to it like you could with Arduino's IDE.

Serial Monitor is a versatile Chrome extension that enables you to monitor serial ports with ease. Designed as a demo for the browser-serialport npm package, it allows users to read from and write to serial ports directly in the browser, mimicking the functionality of Arduino's IDE Serial Monitor. Whether you're a developer or hobbyist, this tool simplifies serial communication by providing an intuitive interface for serial port interaction.

With Serial Monitor, you can effortlessly manage serial data streams without needing to switch to dedicated IDEs or software. Its browser-based nature ensures quick access and ease of use, making it a practical solution for debugging and testing serial devices.

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By:: Glen Arrowsmith
Users:: 5,000+
Rating:: 3.58
(36)
Version:: 1.0.5 (Last updated: 2014-05-05)
Creation date:: 2014-05-05
Risk:: Very low risk impact Low risk likelihood
Permissions:: serial
Size:: 143.36K
Full description:: See detailed description
Source:: Chrome Web Store
Updated:: 16 hours ago

Ranking

# 13,546 ▼ 419

Other rankings

#2936 in Developer Tools ▲ 15

User reviews

Users find Serial Monitor reliable and straightforward for basic serial data tasks, especially with Arduino and Chromebook setups. However, many complain about missing autoscroll, limited line termination customization, and minimal interface features. Lack of documentation and inability to properly close ports are also notable issues. Overall, it performs its core function but lacks polish and advanced usability features.

Pros

Simple and easy to use interface.
Works well for basic serial communication tasks.
Effective for streaming data from Arduino and similar devices.
Minimal interface suitable for demonstrations or educational purposes.
Reliable connection and data capture on devices like USB GPS and Chromebooks.

Cons

Lacks autoscroll functionality, making it difficult to monitor rapidly updating data.
No option to customize line termination characters like CR, LF, or both.
Poor or insufficient documentation and user guidance.
No clear way to close the serial port once opened, leading to port being 'stuck'.
Interface is very minimal with very limited controls or advanced features.

Recent reviews

It works, but there is no autoscroll, which limits its usefulness.

Brian Marshall, 2023-01-18

Very simple and easy to use, however it is missing an auto scroll feature which is crucial for a serial monitor.

Enzo Ruberto, 2021-08-31

How to force sending CRLF (\n)? Launched in Chrome browser Version 77.0.3865.90 (Official Build) (64-bit) on Windows 8.1 Home to a USB device COM3, which works with e.g. putty. The problem seemingly is that CRLF (\n) is not sent; the device "sees" text (as confirmed by subsequent putty connection) but does not respond unless/until \n is detected..

Steven Carmichael, 2019-10-01

View all user reviews

Extension safety

Risk impact

Serial Monitor does not require any sensitive permissions.

Risk impact analysis details

Risk likelihood

Serial Monitor has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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