Busy bee
05 October 2009
STMicroelectronics introduces MotionBee platform for remote motion control.
MotionBee is a complete, ready-for-use platform that combines state-of-the-art motion sensing with ZigBee wireless technology in a single ultra-compact module.
Boasting low power consumption and high level of integration, ST’s MotionBee enables system developers to build wireless sensor networks for remote motion recognition and tracking in many different application areas, including healthcare, security, industrial control and environmental monitoring.
The first-generation MotionBee module integrates ST’s three-axis digital-output MEMS accelerometer with a ZigBee platform from Ember Corporation that includes the EM250 system-on-chip, a 2.4GHz, IEEE 802.15.4-compliant radio transceiver and processor, together with the EmberZNet PRO ZigBee networking software. The module detects accelerations in the selectable range of +/-2g and +/- 6g and transmits the information to a central connection point (star topology) or every other node (mesh topology) in a ZigBee wireless network. The module is fully programmable and its small size (49mm x 27mm x 5mm) makes the deployment easier, such as in wearable medical or sports equipment.
Specifically addressing the requirements of remote sensing and control systems, ZigBee technology enables the implementation of broad-based wireless mesh networks that are able to run for months on inexpensive primary batteries, representing a viable alternative to costly hard-wired systems. The first-generation MotionBee modules are optimised for designs that require long battery life, a low external component count, and a reliable, proven, industry-standard networking solution.
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