LTerminal

The RS232 protocol and UART-based communications are well-established standards that have stood the test of time. Despite their age, they are far from obsolete. Many embedded systems continue to rely on these technologies as powerful and straightforward tools for debugging and data exchange.
For example, Linux-based embedded systems often use serial communication as a backdoor terminal for debugging purposes. Industrial communication protocols such as IO-Link and RS485, as well as automotive protocols like LIN, are built on simple UART-based serial communication.
Even the USB standard acknowledges the legacy of RS232. Within the USB Communication Device Class (CDC), there is a defined subclass specifically for RS232 emulation. As a result, many devices that comply with the USB standard are designed to support virtual RS232 communication ports. These devices can still be accessed using traditional RS232 tools also called Serial Terminals.
One of the most widely used programs for RS232 communication was Microsoft’s HyperTerminal, which came bundled with Windows operating systems up to Windows XP. After its removal, various free alternatives emerged to fill the gap. While it may seem like there’s no longer a place for free Terminal tools, those who have used them appreciate the convenience and often desire more advanced features, typically available only in commercial software.

LTerminal is one such tool that stands out. It offers a wide range of features for serial terminal debugging, all for free. These include:

    • Transmitting and receiving data in HEX format
    • Sending multi-word packets
    • Data parsing and auto-send capabilities
    • Flexible data formatting
      
With these features, LTerminal is one of the most versatile tools available for serial communications, providing robust functionality for both hobbyists and professionals alike.

The project is sponsored by PCBWay