Sscom V5.13.1 English ~upd~ Jun 2026
Engineers and developers frequently need a reliable tool to communicate with hardware. is a highly efficient, lightweight serial port debugging utility designed for Windows. It allows you to send and receive data via COM ports, troubleshoot embedded systems, and test microcontrollers like Arduino, STM32, or ESP8266.
Capability to send and receive data in ASCII or HEX formats, with support for custom-defined data frames.
This setting appends \r\n (0x0D 0x0A) to each transmission. Many devices require line endings to recognize command boundaries. Without this option enabled, a device might not respond correctly or may echo back commands without processing them. The software enables this by default for most configurations.
Portable (Executable runs without installation). Core Features of SSCOM V5.13.1 English
Check the flag, or adjust the "Frame Break" timeout settings to cleanly force automatic line breaks when data breaks occur. If youg., ESP32, Arduino) are you trying to connect? Are you sending text commands (ASCII) or raw bytes (HEX) ? What error or issue are you currently facing? Sscom V5.13.1 English
| Problem | Likely Cause | Solution in Sscom V5.13.1 | | :--- | :--- | :--- | | "Access Denied" when opening COM | Port already in use by another app (e.g., Arduino IDE) | Close other apps. Use "Close COM" button then reopen. | | Garbage characters in receive window | Baud rate mismatch or parity error | Match baud rate exactly. Try "No parity, 8 data bits". | | Data stops flowing after minutes | Buffer overflow or flow control wrong | Increase receive buffer in Settings. Disable flow control temporarily. | | Cannot send binary files >64KB | Incorrect protocol selection | Use YMODEM for large files. Avoid ASCII mode. | | Sscom crashes on Windows 11 | Driver conflict with USB3.0 ports | Run in Windows 7 Compatibility Mode. Use USB2.0 port. |
: Choose None for standard setups, or Even/Odd if your specific hardware protocol dictates it. 2. Opening the Connection Click the Open COM button to initialize the connection.
The USB-to-Serial driver is missing, or another program (like Arduino IDE or PuTTY) is currently occupying the port.
: It supports standard baud rates (from 9600 to 115200) as well as custom high-speed rates required for specialized hardware. Multi-Format Display : Users can toggle between Engineers and developers frequently need a reliable tool
Sscom V5.13.1 English represents the culmination of years of refinement of a tool that has become indispensable in the embedded development community. Its combination of portability, reliability, and feature depth makes it an excellent choice for:
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Obtain the archive from a trusted electronics community repository, GitHub mirror, or your development board manufacturer's resource page.
Automatically detects available COM ports, including physical RS-232 ports and USB-to-TTL virtual serial adapters (CH340, CP2102, FTDI). Capability to send and receive data in ASCII
Close the COM port, change the baud rate setting in SSCOM, and open the port again. Data Sends But the Hardware Does Not Respond
Full English language support for global developers.
: Version 5.13.1 addresses the USB hotplug crashing issue that plagued earlier versions.