Jump to content
I2Cdevlib Forums

Search the Community

Showing results for tags 'linear acceleration'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • I2Cdevlib Web Tools
    • I2C Protocol Analyzer
    • I2C Device Entry Interface
    • I2C Device Library API
  • I2Cdev Platform Discussion
    • Arduino (ATmega)
    • Arduino Due (ARM Cortex M3)
    • MSP430
    • Other Platforms
  • I2C Device Discussion
    • AD7746 capacitance-to-digital converter (Analog Devices)
    • ADS1115 16-bit A/D converter (Texas Instruments)
    • ADXL345 3-axis accelerometer (Analog Devices)
    • AK8975 3-axis magnetometer (AKM Semiconductor)
    • BMA150 3-axis accelerometer (Bosch Sensortec)
    • BMP085 pressure sensor (Bosch Sensortec)
    • DS1307 real-time clock (Maxim)
    • HMC5843 3-axis magnetometer (Honeywell)
    • HMC5883L 3-axis magnetometer (Honeywell)
    • iAQ-2000 indoor air quality sensor (AppliedSensor)
    • IQS156 ProxSense capacitive touch sensor (Azoteq)
    • ITG-3200 3-axis gyroscope (InvenSense)
    • L3G4200D 3-axis accelerometer (STMicroelectronics)
    • MPL3115A2 Xtrinsic Smart Pressure Sensor (Freescale)
    • MPR121 12-bit capacitive touch sensor (Freescale)
    • MPU-6050 6-axis accelerometer/gyroscope (InvenSense)
    • MPU-9150 9-axis accelerometer/gyroscope/magnetometer (InvenSense)
    • PanelPilot multi-screen digital meter (Lascar Electronics)
    • SSD1308 128x64 OLED/PLED driver (Solomon Systech)
    • TCA6424A 24-bit I/O expander (Texas Instruments)

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests

Found 1 result

  1. Hello! I have installed Jeff Rowberg's i2cdevlib library which I can use for my MPU-6050 to make it interact with Arduino. However, I have an odd problem with one of its functions. It's got a function to turn the accelerometer & gyroscope readings into linear acceleration. This is the definition of the function: uint8_t MPU6050::dmpGetLinearAccel(VectorInt16 *v, VectorInt16 *vRaw, VectorFloat *gravity) { // get rid of the gravity component (+1g = +8192 in standard DMP FIFO packet, sensitivity is 2g) v -> x = vRaw -> x - gravity -> x*8192; v -> y = vRaw -> y - gravity -> y*8192; v -> z = vRaw -> z - gravity -> z*8192; return 0; } However, whenever the function is called in the example code: // display real acceleration, adjusted to remove gravity mpu.dmpGetQuaternion(&q, fifoBuffer); mpu.dmpGetAccel(&aa, fifoBuffer); mpu.dmpGetGravity(&gravity, &q); mpu.dmpGetLinearAccel(&aaReal, &aa, &gravity); Serial.print("areal\t"); Serial.print(aaReal.x); Serial.print("\t"); Serial.print(aaReal.y); Serial.print("\t"); Serial.println(aaReal.z); I get values way off, when I'm not even moving my MPU-6050! These are a few of the values I get: areal -473 423 -425 areal -460 400 -450 areal -471 522 -458 areal -322 276 -582 Do you know how I can fix this? Thanks! -George
×
×
  • Create New...