Home portable medical devices share the common need for long battery life, robust data processing and a wired or wireless communication interface. Freescale microcontrollers offer an ideal combination of high processing capabilities and low power consumption. As a pioneer in the communications market, Freescale offers solutions for wired and wireless interfaces, including USB, IEEE® 802.15.4 and ZigBee® technology. Furthermore, Freescale microelectromechanical system (MEMS)–based pressure and inertial sensors can be used to acquire physical parameters. User interfaces include touch screens, enabled by proximity sensors, that have easy–to–clean buttons and screens that can be sanitized quickly and easily.