Understanding the raw output of MPU-6050



  • Hello all,

    I have a small doubt regarding the raw values given by MPU 6050.
    I am getting 6 raw values from the MPU 6050 sensor!
    I have given a default sensitivity of +/- 2g.
    What exactly each value mean? Is it like, voltage values across each axis or capacitance values or the acceleration values itself.
    But for me they doesn't mean anything. I am getting some values above 1000, some of them in negative and some doesn't go beyond +/- 250.
    So, can you explain me in detail what does those value mean in physical parameters and their units?

    Thank you!!



  • Hi @Anudeep ,

    MP66050 is a Gyroscope + Accelerometer + Temperature Sensor Module ,

    3-Axis Gyroscope

    The 3 Axis Gyroscope is used to detect rotational velocity along the X, Y, Z axes as shown in the below figure.

    alt text
    img src : https://www.electronicwings.com

    The full-scale range of output is +/- 250, +/- 500, +/- 1000, +/- 2000 , and that is the angular velocity represented in units of rotations per minute (RPM), or degrees per second (ยฐ/s). The three axes of rotation are either referenced as x, y, and z, or roll, pitch, and yaw.

    3-Axis Accelerometer

    Accelerometers are devices that measure acceleration, which is the rate of change of the velocity of an object, it can be used to detect the angle of tilt or inclination along the X, Y and Z axes as shown in below figure.

    alt text
    img src : https://www.electronicwings.com

    They measure in meters per second squared (m/s2) or in G-forces (g). A single G-force for us here on planet Earth is equivalent to 9.8 m/s2, but this does vary slightly with elevation (and will be a different value on different planets due to variations in gravitational pull)

    datasheet : https://www.invensense.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf


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