Ensure the baud rate selected in SSCOM perfectly matches the baud rate hardcoded into your hardware firmware. Permission Denied / Port in Use
Stream entire text or binary files directly over the serial interface to test bootloaders or dump memory contents.
: The tool uses color-coding for clarity: user-sent data appears in green , received data in blue , and interval times (in milliseconds) in gray .
is a lightweight, portable serial port debugging tool widely used for embedded systems development. This version includes a built-in English interface, though it may default to Chinese on first launch. Quick Setup Guide Sscom V5.13.1 English Version BEST
One of the key reasons for its popularity is its zero-friction design. It's a completely portable, single-file executable ( .exe ). There is no complex installation process or registry changes required. You can simply download it, copy it to a USB stick, and run it directly on any Windows system, making it an ideal tool for on-site testing and rapid deployment.
Even the best tools can hit a snag. Here’s how to solve the most common problems.
Are you primarily dealing with or Hexadecimal/Modbus data packets ? Ensure the baud rate selected in SSCOM perfectly
Click the button. The virtual indicator light will turn green to confirm an active connection.
Sscom V5.13.1 English Version: The Best Serial Port Debugging Tool (2026 Guide)
To help tailor more advanced serial communication tips for your setup, let me know: is a lightweight, portable serial port debugging tool
for automation, plus a waveform display for real-time analysis. Technical Specifications Windows 7 through Windows 11. Installation: Portable executable format. Original Chinese version with an English interface toggle.
Plug your USB-to-TTL adapter (such as CH340, FTDI, or CP2102) into your computer. Launch the sscom5131.exe application.
Another application (like Arduino IDE, Cura, or a second instance of SSCOM) is occupying the port.