Open-source alternatives to Libserial

Node-Serialport is a Node.js library that provides cross-platform serial port access for JavaScript applications. It wraps native serial port operations into a stream-based abstraction, enabling consistent read and write behavior across Linux, macOS, and Windows without requiring platform-specific code. The library includes a mock serial port implementation that uses in-memory streams for testing code without physical hardware, and a parser stream pipeline that transforms raw binary data into structured messages using delimiters, line endings, or fixed byte lengths. It also provides command-l

Boost.org asio module

Asio is a C++ library for performing network and low-level I/O operations using a consistent asynchronous model that avoids blocking program execution. It provides a portable, cross-platform interface for network socket communication across different operating systems, and manages multiple asynchronous operations without requiring explicit thread management or locking. The library implements a proactor-based asynchronous model where operations post completion handlers to a queue for later execution, and wraps operating system I/O multiplexing mechanisms like epoll, kqueue, IOCP, and select in

CSerialPort - lightweight cross-platform serial port library and protocol parsing for C++/C/C#/Java/Python/Node.js/Electron/Rust