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基於Invensense九軸感應器MPU-9250的穿戴式感應方案

 2015-07-29

採用Invensense九軸動作感應器MPU-9250,搭配Ti的MSP430微控制器,透過預載MCU上的Library,可進行九軸的動作偵測,並透過藍芽模組將溫度、濕度、壓力、近接感測、環境光源等訊息,傳回手機並顯示於應用程式上,透過情境感知可應用於health & fitness的開發。

 

【方案方塊圖】

方案方塊圖

【系統功能】

① 9-Axis motion tracking with Invensense’s algorithms.
② 16bit MCU for health & fitness application
③ Support Bluetooth4.0 (Low energy) with Android and iOS
④ Temperature, humidity, light, proximity, ultraviolet and pressure sensing

【方案特性】

① Motion device :
Invensense MPU-9250
Signal chip, 9-axis(Gyro+Accel+Compass) by I2C
Integrated Digital Motion Processor(DMP)
Invensense MotionFit SDK with eMPL library
② Microcontroller :
TI MSP430F5528
16bit RISC SoC
③ Pressure sensor :
ALSP HSPPA032A
④ UVI(ultraviolet index) & light/proximity sensor
Capella CM3512 & CM36682E
⑤ Temperature/humidity sensor
Sensirion SHT21