Motion sensors and microcontrollers make a splash in sports watches

Miniature motion-sensing and data-processing chips from STMicroelectronics are used in the latest Swimovate sports watches, the PoolMateLive. The automatic training aid is an intelligent water-proof watch that provides information about a swim and stores the data for analysis.

The miniature MEMS accelerometer inside the watch senses the motions of the swimmer’s arm to calculate stroke and lap count, speed, distance, calories and efficiency. The STM32L microcontroller makes sure everything functions reliably on minimal energy use, says the company.

The PoolMateLive watch has full CE and FCC approvals and is now available to order at

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