If you encounter problems, here are a few quick fixes:
If your port does not appear in the dropdown list, your PC likely lacks the driver for your USB-to-TTL chip. Open Windows Device Manager and check under "Ports (COM & LPT)" to see if your device has a yellow exclamation mark. Download the specific driver (CH340G or CP210x) required by your hardware board. Cannot Open COM Port
SSCOM 5.13.1 is a widely used serial port debugging tool developed by Nie Xiaoqi (in some contexts associated with Hitachi Systems for enterprise versions)
: It supports extremely high baud rates, with documented tests successfully running at 1Mbps and 20Mbps for high-performance serial modules. Sscom 5.13.1 English
SSCOM 5.13.1 English is a serial communication software that allows users to establish a connection between a computer and a serial device. The software supports various serial port protocols, including RS-232, RS-485, and RS-422. SSCOM 5.13.1 English is designed to provide a user-friendly interface for configuring and managing serial connections, making it an ideal tool for developers, engineers, and technicians.
Download only from Github mirrors or reputable embedded forums (e.g., EEVblog, Stack Overflow links). Avoid "cracked" or "serial key" websites.
mode for repetitive testing and supports predefined scripted commands. Multi-Port Monitoring If you encounter problems, here are a few
Article last updated: June 2026
The original Ding Ding has not updated Sscom in several years. Version 5.13.1 is considered the "final stable" release. However, the English community has unofficially adopted it. You will find it bundled in:
Sscom 5.13.1 English is a free, user-friendly serial communication software that enables users to send and receive data through serial ports. Developed by a team of experts, this software has gained widespread recognition for its ease of use, reliability, and feature-rich interface. Sscom 5.13.1 English supports a wide range of serial devices, including microcontrollers, GPS modules, and other embedded systems. Cannot Open COM Port SSCOM 5
While early versions like SSCOM 3.2 were widely used, they were primarily in Chinese, creating a barrier for international developers. Version 5.13.1 emerged as a significant milestone because it included an easy-to-use toggle for an , allowing it to support a broader global audience of "designers, planners, and technicians". Key Features and Capabilities
SSCOM excels at switching between human-readable text (ASCII) and machine code (Hexadecimal). With a simple checkbox, you can send raw bytes (e.g., AT\r\n or FF 01 02 ) which is essential for communicating with modems, GPS modules, and sensors that require binary protocols.
SSCOM is a Windows-based serial port debugging utility. Developed originally in China, it gained massive popularity due to its small footprint and capability to handle complex data streams without crashing. Version 5.13.1 is widely sought after because it offers a stable, feature-rich environment and, crucially, an interface that is accessible to English-speaking users (often via a translated/English version of the original tool).
Locate the positioned near the lower-right side of the main configuration panel.