Cause: Port already in use by another program (e.g., Arduino IDE, CuteCom, another Sscom instance).
Fix: Close all other serial monitoring apps. Restart Sscom.
Set parameters to match your device:
While Sscom remains a favorite for its speed and simplicity, you may consider these alternatives: Sscom5.13.1.exe
| Software | Key Feature | Best For | |----------|-------------|----------| | PuTTY | Lightweight, supports SSH + Serial | Quick, minimal serial access | | Tera Term | Scripting (TTL), file transfer | Automated testing | | RealTerm | Advanced packet display, line timestamps | Protocol analysis | | CoolTerm | Clean UI, cross-platform (Win/Mac/Linux) | Modern replacement | | Hterm | Built-in hex editor, JSON support | Web developers |
However, none of these offer the exact blend of simplicity and power that Sscom users love—especially the HEX/ASCII toggle and the command preset buttons. Cause: Port already in use by another program (e
Solution: Add the file to antivirus exclusions. Use a reputable antivirus (Windows Defender is sufficient) and report false positives to the vendor.
Cause: Baud rate mismatch or incorrect data format.
Fix: Verify device datasheet for correct baud rate. Try switching between HEX and ASCII display. Set parameters to match your device: While Sscom
Received data appears in the large text area. You can:
SSCOM is a classic serial port debugging tool widely used in the embedded systems and IoT (Internet of Things) industries. Developed originally in China, it has become an underground favorite for engineers working with ESP8266, ESP32, STM32, and Arduino modules. Version 5.13.1 represents one of the stable iterations of the v5 series, known for its lightweight footprint and raw utility.
If you are an embedded developer, SSCOM is the digital equivalent of a messy but incredibly useful workbench—ugly to look at, but it has exactly the tool you need within arm's reach.