The USB-to-Serial driver is missing, or another program (like Arduino IDE or PuTTY) is currently occupying the port.
Check this box to view incoming data as raw hexadecimal bytes instead of ASCII text. Sscom V5.13.1 English
The story of is one of a humble, reliable tool that became a "secret weapon" for hardware engineers and embedded developers worldwide . Originally developed in China, this lightweight serial port debugging utility grew from a niche technical tool into a globally recognized staple for anyone working with Arduino , ESP32 , or industrial STM32 modules. 🛠️ The Engineer's Reliable Companion The USB-to-Serial driver is missing, or another program
The "Multi-Strings" feature is arguably the most powerful time-saving feature for frequent commands. This panel lets you create a set of 32 predefined buttons. Each button can store a specific command, whether it's a simple text string like AT\r\n (to check modem status) or a more complex hexadecimal data packet. Originally developed in China, this lightweight serial port
Optionally timestamp received data, which is crucial for diagnosing timing issues. Improvements in Version 5.13.1