MPU-9150 9-Axis (Gyro+Acclerometer+Compass) MEMS Sensor

IC Manufacturer:

MPU-9150 Sensor

OVERVIEW
DESIGN RESOURCES

OVERVIEW
DESIGN RESOURCES

OVERVIEW

The MPU-9150 is the world's first 9-axis MotionTracking MEMS device for the low power, low cost, and high-performance requirements of consumer equipment.

The MPU-9150 combines two chips in one: the MPU-6050, which contains a 3-axis gyroscope, 3-axis accelerometer, and an onboard Digital Motion Processor™ (DMP™) capable of processing complex MotionFusion algorithms; and the AK8975, a 3-axis digital compass.

Technical Details:

Digital-output 6-axis MotionFusion data from DMP; 9-axis fused data from Motion Processing Library
Tri-axis angular rate sensor (gyro) with full-scale range of ±250, ±500, ±1000, and ±2000°/second and a sensitivity up to 131 LSBs/dps
Tri-axis accelerometer with a programmable full-scale range of ±2 g, ±4 g, ±8 g, and ±16 g
Tri-axis compass with a full-scale range of ±1200 µT
Reduced settling effects and sensor drift by elimination of board-level cross-axis alignment errors between accelerometer, gyroscope, and compass
Digital Motion Processing™ (DMP™) engine offloads complex MotionFusion, sensor timing synchronization, and gesture detection
MotionApps™ Platform support for Android, Windows 8, and embedded applications
Embedded algorithms for run-time bias and compass calibration; no user-intervention required
Digital-output temperature sensor

Digital input on FSYNC pin to support video electronic image stabilization and GPS
Programmable interrupt supports gesture recognition, panning, zooming, scrolling, tap detection, and shake detection
V_DD supply voltage range of 2.4 V to 3.46 V; V_LOGIC of 1.8V±5% or V_DD
Gyro operating current: 3.6 mA (full power, gyro at all rates)
Gyro + Accelerometer operating current: 3.8 mA (full power, gyro at all dates, accelerometer at 1 kHz sample rate)
Accelerometer low-power-mode operating current: 10 µA at 1Hz, 20 µA at 5Hz, 70 µA at 20Hz, 140 µA at 40Hz
400 kHz Fast-Mode I²C serial host interface
On-chip timing generator with ±1% frequency variation over full temperature range
User self-test
10,000 g shock tolerant
Smallest and thinnest package for portable devices: 3 x 3 x 1 mm
RoHS and green compliant

EZ-PSoC 5LP API

Example Code

#include <stdlib.h>
#include "MPU9150.h"

PEZOBJ_I2C      i2c;
PEZOBJ_MPU9150  mpu;
char            str[80];

int main()
{
    /* Place your initialization/startup code here (e.g. MyInst_Start()) */

    // Setup Character LCD
    LCD1_Start();
    LCD1_ClearDisplay();
    LCD1_Position(0, 0);
    LCD1_PrintString("Hello");

    // Setup I2C Object and I2C Hardware Component here
    i2c = ezI2C_Create();
    CONNECT_I2C(i2c, I2C1);
    ezI2C_Start(i2c);

    // Setup MPU9150 and Connect it with I2C Object
    mpu = MPU9150_Create();
    MPU9150_ConnectI2C(mpu, i2c);
    mpu->a.x =  45.0f;  mpu->a.y =  23.0f;  mpu->a.z =  -368.0f;
    MPU9150_SetAccOffset(mpu);
    mpu->g.x =  13.0f;  mpu->g.y =  14.0f;  mpu->g.z =  21.0f;
    MPU9150_SetGyroOffset(mpu);
    mpu->m.x =  161.0f; mpu->m.y =  257.0f; mpu->m.z =  -48.0f;
    MPU9150_SetMagMax(mpu);
    mpu->m.x = -116.0f; mpu->m.y = -35.0f;  mpu->m.z = -322.0f;
    MPU9150_SetMagMin(mpu);
    MPU9150_Start(mpu);

    CyGlobalIntEnable; /* Uncomment this line to enable global interrupts. */
    for(;;){
        /* Place your application code here. */
      MPU9150_ReadAcc(mpu);
      sprintf(str,"Acc.x=%d y=%d z=%d", mpu->a.x, mpu->a.y, mpu->a.z);
      LCD1_Position(0,0); LCD1_PrintString (str);
      CyDelay(1000);
    }
}

Example Project