Human Body Posture Sensor

    BLE MCU based multi-function human posture sensing device

    Project Overview

    Human body posture sensor device built on a BLE MCU, with an audio processing subsystem. Includes 3-axis sensors (MPU6050/SC7A20/STK8321), IR sensor, NTC temperature detection, audio noise reduction/noise gate, KWS speech recognition, Bluetooth, RFID reading, wireless microphone, colour lighting effects, and mini program control.

    Technical Challenges

    Integrating multiple sensors and audio processing functions in sports scenarios, achieving low power and real-time response.

    Solution

    BLE MCU main controller processes sensor data (MPU6050/SC7A20/STK8321), a dedicated audio processor handles noise reduction and KWS recognition, ring buffer manages real-time data, BLE connects to phone, RFID enables identity recognition, WeChat mini program enables remote control and data display.

    Key Highlights

    BLE MCU
    MPU6050

    Technology Stack

    BLE MCU
    MPU6050
    SC7A20
    STK8321
    Audio Noise Reduction
    KWS
    BLE
    RFID
    WeChat Mini Program

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