STMicroelectronics intelligent motion sensor boosts popular social fitness activities, enabling higher detection accuracy and battery continuation

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Across multiple electronic applications of the world's leading semiconductor suppliers, the world's largest [1] consumer electronics MEMS supplier STMicroelectronics (STMicroelectronics, referred to as ST; NYSE: STM) help to maintain social fitness enthusiasts fitness activities Passionately, the introduction of innovative smart sensors allows the always-on tracking application to run longer and more accurately record the progress users have made in their physical exercise.

ST 's LIS2DS123 axis "supermicro" accelerometer, LSM6DSL/M6 axis inertial sensor module and the new product LSM303AH electronic compass allow applications to continuously track motion without affecting the battery life of the device and efficiently perform motion-related on-chip The operation does not require the system main processor to intervene. Pre-embedded motion algorithms, including high-precision pedometers, step detection, step count calculations, large motion and tilt detection, can effectively reduce R&D workload, speed time to market, and develop innovative new applications such as wristbands and medical monitors. , personal navigation, IoT nodes, and smartphones and wearables.

ST 's intelligent motion sensors are integrated into several smartphones and support WeChat's WeRun. More than 90% of the first-tier cities in China use WeChat communication software. Andrea Onetti, vice president and general manager of MEMS sensor products at STMicroelectronics, said: "WeChat has turned physical activity into social activities to help mobile phones and wearables users to exercise. ST's intelligent motion sensors allow WeWes WeRun to continuously track motion. There is no step count, and it is also very power-saving, thus extending battery life, which not only improves the usability of the device, but also helps attract more users to use WeChat."

As ST's latest motion sensor for WeChat WeRun's built-in pedometer, the LSM303AH electronic compass integrates an accelerometer and a magneto-force sensor. Performance tests at the same latitude show that heading accuracy is better than other brands of electronic compasses or The simple magnetometer is more than doubled. In addition to continuous and accurate step-by-step monitoring, the new device also has a dead reckoning function that ensures accurate positioning even in locations such as offices, underground parking lots or shopping malls without satellite signals. In addition, STMicroelectronics has developed advanced precision calibration software to facilitate end-user correction of temperature sensor drift and magnetic strength sensor errors.

ST's smart sensors also allow users to select power modes and resolutions to optimize the energy efficiency and performance of end products. Other highlights that simplify system design include built-in FIFOs, self-tests, temperature sensors, and programmable interrupt pins that detect interrupt conditions such as free fall.

The IS2DS12, LSM6DSL/M and LSM303AH smart sensors are now in volume production. The LSM303AH is available in a 2mm x 2mm x 1mm 12-lead LGA package.