PSoC Express, as you may be aware, has been merged with our PSoC Designer software; PSoC Designer 5.0 (www.cypress.com/go/psocdesigner). The CyFi Star Network Protocol is currently not available as a PSoC Express Driver; only a PSoC Designer User Module. That said, there has been a large focus on making the code very easy to work with. For example, with approximately 8 API software calls you can get your wireless application up and running very easily and quickly. With the documentation in the user module datasheet, there are detailed explanations of what the API calls do, how to configure the user module as well as example code to help you get started very easily.