USB簡化射頻鏈路設計

　　開發連接的無線應用程序需要兩個主要任務。首先，您的設計必須執行指定的功能，第二，它必須與主機PC、筆記本、平板電腦或智能手機通信。

　　在廣受歡迎的RS-232端口是可用的，一個簡單的3線接口是所有需要連接外設，數據連接、I/O、傳感器和更多的主機。通常，幾百甚至一千英尺低成本的電線允許可靠的點對點通信。

　　簡單的平行式并行端口是從PC容易到你的接口板，得到8位輸出塊的另一種簡單的方法。就新設備而言，這兩個接口已經幾乎絕跡了。

　　相反，Wi-Fi，ZigBee，6LoPAN，RF4CE，藍牙和其他無線協議是引導我們進入一個世界，連接電纜都是過去的事。雖然有些標準集成到主板、智能手機和其他類似的設備中，但有些插件可以作為插件模塊，為您的設計提供必要的功能。

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As you will want to have a universal and reliable communications scheme when developing either a stand-alone wireless application or one that is available as a plug-in module, USB may be the ideal choice, particularly since PCs and advanced microcontrollers support USB directly,

This article discusses the use of USB as an RF link and development mechanism for wireless design applications. It examines off-the-shelf USB-to-RF modules, as well as example development platforms that demonstrate wireless reference designs through USB connectivity. The latter products let you use USB connectivity to provide control and access to development platforms so you can custom tailor your own wireless solution.?