Low-power wearable wristband solution based on STM32L

Publisher:ph49635359Latest update time:2016-09-02 Source: eefocusKeywords:STM32L Reading articles on mobile phones Scan QR code
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For the Internet of Things (IOT) solution, STMicroelectronics has launched the STM32 series of products with high performance, low power consumption and low cost, using the ARM Cortex-M architecture. Low-power products can be driven at 26~33DMIPS, while general products have a performance of 38~63DMIPS. High-performance products provide 150~225DMIPS performance and have a built-in LCD controller that can control the display with low power. The price of each chip is only 32 cents, allowing low-end devices to achieve excellent performance. The smart bracelet accelerates the measurement of movement and movement distance. Temperature and altitude can also be measured using sensors. The microcontroller (MCU) chip can process digital signals and convert them into meaningful data.

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【System Function】
-Signal measurement: Use ST displacement detection components (LIS3DH/LIS2DH12) to detect the displacement information (digital signal) of the sensor user, and transmit the information to the MCU through the SPI/I2C interface .
-Altitude measurement: Use ST atmospheric pressure detection components (LPS25H) to detect the user's altitude, and understand the user's up and down stairs (slope) status and calorie consumption.
-Ultraviolet measurement: Use ST ultraviolet sensor components (UVIS25) to detect the ultraviolet index of the user.
-Data calculation: Use ST low-power Cortex M0 to calculate the user's movement distance, calorie consumption, and speed calculation with the obtained raw data.
-Data display: The information obtained in the previous step can be displayed through LCM or NFC /Bluetooth NRG and mobile phone/NB connection display.

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[Solution Features] -STM32
series products with high performance, low power consumption and low cost , using ARM Cortex-M architecture. -ST provides a complete system solution, including hardware reference design circuit + MCU software system program + pedometer and calorie consumption algorithm (Algorithm). -ST provides a complete solution with extremely high cost performance.

Keywords:STM32L Reference address:Low-power wearable wristband solution based on STM32L

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