serialport package which provides a good set of defaults. However it is quite easy to mix and match the parts of serialport you need.
serialportprovides a good set of defaults for most projects with a node stream api. It includes cross platform and mock bindings for testing.
Interfaces take a binding interface and provide a different API on top of it. Currently we only ship a Node Stream Interface.
@serialport/streama Node.js Stream interface for any binding
The Bindings provide a common interface to work with your serialport cross platform.