STMicroelectronics has launched MotionBee, 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 quickly and cost-effectively 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 3-axis digital-output MEMS accelerometer with a ZigBee platform from Ember Corp. 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 of 49x27x5mm makes the deployment easier, such as in wearable medical or sports equipment.
ST’s first MotionBee device, the SPMB250-A1, is available now. An evaluation kit is also available, with two pre-programmed modules and a ZigBee dongle for integration with a PC.
STMicroelectronics
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MEMS-based motion sensor for portable device applications
