Digital compass integrates motion and magnetic sensing in a 3x3x1mm package

June 29, 2012 // By Julien Happich
STMicroelectronics has unveiled an ultra-compact, high-performance e-compass module that integrates motion and magnetic sensing in a 3x3x1mm package for advanced navigation and location-based services in sleek portable consumer devices.

The ST e-compass' ability to provide accurate heading information - indicate the direction in which a person or vehicle is moving - enables a wide range of applications, including pedestrian dead-reckoning, map/display orientation, and direction finding. Tied to location-based service apps, compassing capabilities can help consumers identify and retrieve information on nearby points of interest, such as historical or geographical points of interest, restaurants or shops, by simply pointing their GPS-equipped mobile devices in the direction of the object concerned.

Reducing the size by 60% over devices currently in production, ST’s new digital compasses have effectively shrunk to the size of single-function, stand-alone motion sensors. The LSM303D module provides extremely accurate output across full-scale ranges up to ±16g (linear acceleration) and ±12 Gauss (magnetic field).The device embeds a temperature sensor and a programmable FIFO (first-in first-out) memory block for advanced motion recognition and smart power management. Advanced features include two programmable interrupt signals that enable immediate notification of motion detection, click/double-click events, and other conditions.

Visit STMicroelectronics at www.st.com