Questions tagged [gyroscope]

Anything related to (electromechanical) gyroscopes and their control circuitry. A gyroscope is a device used for maintaining or measuring orientation in 3D space whose main component is a fast spinning (usually wheel-shaped) body.

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2answers
78 views

How can you estimate the final position of a gyroscope graphically?

A Smartphone is initially in the position indicated as follow We move it, and get the next gyro reading. How can you estimate your final position graphically?
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1answer
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Difference between 3 axis gyroscope and 3 D accelerometer in determining steps

What is the difference between 3 axis gyroscope and 3 D accelerometer and 3D pedometer? Which sensor measures accurate steps in watch? I need this for research purpose .
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need help deciphering accel/gyro datasheet for i2c communication using python RPi

I have barely any knowledge in this area, the most I have done is used my RPi3 with pre-built python libraries for sensors such as ADS1115 so I didn't have to go through the process of understanding ...
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1answer
81 views

Invensense MPU9150 Accelerometer Raw Values Even

I've been working on pulling data from an MPU-9150 for a data filtering project, and I ran into a issue that I'm not sure of the cause. When I set the accelerometer to ±2g or ±4g range, all the raw ...
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2answers
101 views

What is the “dt” in the complementary filter equation and how do I find out the “dt”?

I am trying to implement a complementary filter in my system but I do not quite understand what "dt" means and how should I find out the "dt" in the complementary filter equation. I found the ...
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1answer
82 views

Does a gyroscope require calibration? (MPU 6050) [closed]

If it does, what is the method that I need to follow? Any suggestions? Edit: Are these the offsets?
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0answers
50 views

Quarternion disagreement between two BNO80 IMU

I'm trying to use two BNO80 orientation sensors to measure the deflection of a universal joint in both pitch and yaw (there are components in the way that prevent the use of rotary position sensors). ...
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2answers
81 views

Unexpected results when measuring MPU6050 sample rate with RaspberryPi

MPU6050 datasheet says that maximum accelerometer data output is 1Khz, so in theory when measuring time it takes to receive 1000 data samples through I2C, so I should receive all data in no less than ...
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134 views

LSM6DS3 Timestamp read in FIFO

I have a LSM6DS3 sensor connected to a MCU by SPI. My goal is to fill the FIFO buffer with the following sets of data: Gx, Gy, Gz, XLx, XLy, XLz, Ts, Pd. I am using a watermark to generate an ...
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0answers
33 views

Nothing seen on serial monitor - MPU6050 with pic16f886 [duplicate]

I'm trying to interface mpu6050 module with pic16f886 microcontroller. But, nothing's getting displayed on serial monitor. Been stuck here since many days. USART code works fine. I've tried that ...
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1answer
97 views

why gyroscope sample rate can be changed by frequency, while accelerometer sample rate cannot?

This is from the mpu6050 datasheet. In the datasheet, gyroscope sample rate can be changed by frequency, but accelerometer cannot. Why this happens?
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2answers
373 views

STM32F722ZE SPI communication with LSM6DS33 using HAL

For a long time I can not read the correct data from the LSM6DS33 control register (accelerometer + gyroscope). As I read in the datasheet, the control register address WHO_I_AM is 0x0f. In order to ...
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5answers
314 views

Can I derive steering wheel angle of a car from gyroscope data (x,y,z values)? [closed]

I am not an electrical engineer but I don't really know where to ask this question so here it is. I have some x,y,z gyroscope data from a car and I want to calculate the steering wheel angle at a ...
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1answer
1k views

IMU axis rotation, calculate values with respect to Earth plane

I'm building a project that uses an IMU (Inertial Measurement Unit). The project involves the device to be mounted inside a vehicle and I should provide the ...
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2answers
99 views

Replacement of MEMS gyroscope with better less noise devices [closed]

Is there any good replacement for MEMS based 6 or 9 degree of freedom gyroscope to use with Arduino ? I read that most of MEMS are not reliable regarding the values, with slow reading and high noise ...
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240 views

Connecting 5 MPU6050 IMU sensors to an Arduino Uno

I'm needing to connect 5 MPU6050 IMU sensors to an Arduino Uno to simultaneously obtain data. I've tried searching for a solution, however there are no clear instructions as to how this is done, ...
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58 views

Using my sensor values, what are relevant data analysis techniques?

I am currently trying to devise a system using gyroscope+accelerometers placed in on a hat/cap in certain areas of the head (Front-left, Front-right, Centre, Back-left, Back-right). I want to create a ...
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1answer
1k views

MPU6050 showing inconsistent angle values

I'm using this Arduino code to calibrate and read from an MPU6050 accel/gyro sensor from an Arduino Mega. The calibration and reading of values seemed to go well. However, I'm seeing some ...
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1answer
50 views

Filter gyroscope's error from linear acceleration?

I need to use 3-axis angular velocity data for my application, but the gyroscope outputs angular velocity when under linear acceleration (not rotating). Is there a way to filter this error?
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1answer
560 views

Reading FIFO in LSM6DS3

What is the difference between reading the FIFO registers(FIFO_DATA_OUT_L,FIFO_DATA_OUT_H) and Sensor output registers(OUTX_L_XL to OUTZ_H_XL) both are same?which is recommended to get the raw data ...
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1answer
93 views

Measuring High Speed Angular Velocity 20,000+ rps

I'm looking for a way of measuring angular velocity in a spinning object at high speeds - up to 25,000 degrees per second. There's ridiculously expensive gyros in the market that can do this, but I'm ...
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7answers
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Acceleration when device is on tilt

I'm currently working on device that uses always-on 3D accelerometer(using scale +-2g) and 3D gyroscope(using scale +-250g) -sensor. I can read every possible vector (X,Y,Z) and their acceleration (g'...
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1answer
68 views

oscillioscope specification for low speed usb device [closed]

I want to capture the low speed USB device packets, What specification is required for it? I am looking for inexpensive oscilloscope. As USB low speed device work at 1.5 MBit/s, Is hantek 6022be ...
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1answer
113 views

MPU6050 data go crazy while transmitting via HC-12 radio

I'm building a project based on the raspberry pi 3 (written in NodeJS & python) which uses the following modules: a bmp180 barometer, an mpu6050 imu, a hc-12 radio, a ublox-neo7m GPS, an LCD with ...
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1answer
579 views

Drone gyroscope placement

I'm building a drone with an mpu6050. Does the placement of the mpu influence sensor data? I mean, if I rotate the sensor properly so that all axes point in proper directions, then will it matter if ...
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1answer
665 views

MPU6050 getting wrong data on stm32 f103

I'm trying to send data from the gyro in MPU6050 to the computer over UART, but for reasons unknown by me, I'm getting values twice as large as the maximum value of an integer (4294967247). I've ...
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1answer
113 views

Compensating for MEMS Gyroscopic drift

I'm new to IMUs and know that they are prone to high drift, which depends on Temperature, White Noise and Time, but the most uncertain drift is caused by time, and under certain circumstances, drift ...
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2answers
1k views

Does multiple IMU increase accuracy

I'm just starting up with IMU's and I really want to work on my own flight controller, but a question always hits my mind and I am not able to find answer anywhere, so I'm here. Will multiple IMUs ...
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2answers
574 views

Smoothing Accelerometer/Gyroscope Displacement Tracking for Mouse Motion

I'm working on a project to combine a linear acceleration reading from an accelerometer and gyroscope, adjusted for gravity, into displacement/position on an x-y plane, specifically for turning the ...
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0answers
430 views

Should I be using a Standard Kalman Filter (KF) or an Extended Kalman Filter (EKF)?

So I am trying to implement a Kalman filter for an Inertial Measurement Unit (IMU) using an Arduino. I have 4 sensors: GPS Accelerometer Gyroscope Magnetometer To measure various vehicle properties ...
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1answer
1k views

Gyroscope Noise Density

I am trying to understand how to use the "Rate noise density" spec on a gyro IC. It is quoted at 0.25 degrees/second/root(Hertz). I plan on sampling it at about 100Hz. Is the noise going to be root(...
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4answers
272 views

Which is give better result for find angular position of device using 9-axis IMU snesor.?

I'm Using LSM9DSO 9 axis Sensor Which gives output of Accelerometer , gyroscope , Magnetometer Output data. i want to find the angular position of the device using this sensor. currently i'm trying ...
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3answers
148 views

Detect if object is lying on the surface or is it lifted into the air?

Suppose we have a small box with a circutry and a set of sensors in it. Box is lying on the table, but it is light enough to be lifted into the air. What I want to achieve is to switch off the ...
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1answer
441 views

Why does all the sensor registers from MPU6050 returns 0 to me? and why I can't write to the registers?

I would like to apologize before I start this question as I don't have the code to put down here as it is in my work pc. BUT.. 1)I have figured out that my GY521 Module (for MPU6050) has been ...
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1answer
886 views

Data Problem with Multiple MPU6050 and Arduino Nano

I've been working on a recent project which involves multiple IMU's(Specifically 5 MPU6050's, GY-521 Breakout board). Everything works fine, from angle calculation to dealing with gyroscopic drift for ...
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2answers
156 views

How could I measure noise of gyroscope angle readings?

I have a system that uses gyroscopes to ultimately give me the angles/orientation of an object. So, let's say that the object is sitting at 90 degrees. I might get some readings such as: ...
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2answers
572 views

Gyroscope's Output Data Rate (ODR) vs. Program Loop Frequency (L3G4200D, Arduino)?

I configure a L3G4200D gyroscope with an Output Data Rate of 100 Hz and a program reads the raw values from the registers (X, Y, Z axis) every 5 ms. But if the program runs at 200 Hz (i.e. loops ...
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1answer
456 views

Quadcopter balance with MPU-6050

It is not uncommon to see people asking about how to balance a quadricopter using MPU-6050. It's also common to see people answering that a PID controller is needed. However, people doesn't say how. ...
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1answer
184 views

What is the difference between IMUs and other devices that have accelerometers and gyroscopes (smartphones, tablets, sensewear etc.)?

The general definition of IMU says that any device that has accelerometer, gyroscope and magnetometer/GPS packed together is an IMU. Then why aren't other devices that have the same sensors called ...
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2answers
715 views

Bosch BNO055 gyroscope bias stability

What is the bias stability in degrees/hour of the gyroscope on the BNO055? The datasheet lists some specs of the gyro on page #14 but I cant find the bias there. There is an item called "output noise"...
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1answer
937 views

Gyroscope Bandwidth on LSM9DS1

I am trying to read data at 119Hz and above from the gyroscope embedded in the LSM9DS1 9dof IMU package and transfer the raw data from the gyroscope to an Android device. On the Android, I plan to use ...
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1answer
785 views

Calculating absolute roll/pitch/yaw angle of falling objects [duplicate]

I am wanting to build a device with gyro, accellero, gauss (compass) sensors and barometric sensor. This device will record all data from the sensors over a period of about 15 minutes where a person ...
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1answer
517 views

Configuring IMU FIS1100

We have been working on motion sensor unit FIS1100. We decided to use it as traditional motion sensor (FIS1100 can be operated in two modes Attitude engine mode and traditional sensor mode). We are ...
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1answer
164 views

MEMS 6 axis: acc + mag or acc + gyro?

I have a question which I can not give an answer even if it is some days I am thinking about that. In general a INS is made by an accelerometer + a gyroscope. Is it possible to obtain the same ...
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1answer
1k views

MPU 6050 Digital Motion Processor Gyro Units

I'm running into an odd issue with a motion control processor (MPU 6050 / 9150) that is returning raw gyroscope values as specified between the -/+ 32768 which in the way this gyro is configured ...
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3answers
816 views

Simulate Gyroscope through MEMS accelerometer

Is possible to simulate the Gyroscope using Accelerometer values? I would like to make that in Android Context so using MEMS smartphone accelerometer.
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1answer
367 views

Cancellling Out the Effect of Constant Gravitational Acceleration in a Datalogger

In a design that records not only accelerometer readings (X + Y + Z) but also gyroscopic readings (X + Y + Z) how is it possible to remove the accelerometer readings caused by gravity? I have found ...
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1answer
760 views

Gyro - Determine angle accuracy from datasheet

I have a few Gyro's that I am considering for a new project that needs accurate positioning on moving parts. What I don't fully understand is how to pick a Gyro that will report back an accurate ...