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Questions tagged [accelerometer]

A sensor to measure acceleration.

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1answer
130 views

How to estimate displacement error using accelerometer

I am using an MPU6050 and performing a double integration to obtain displacement, and this is to be placed in a vehicle that will be subject to about 2.5g. I cannot test it now, but how is it possible ...
1
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2answers
59 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 ...
2
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1answer
208 views

PIC16F1783 Inclinometer Project using Accelerometer 12-bit ADC issue

I am working on an inclinometer project using an accelerometer, MMA1220KEG and a PIC16F1783, it is designed to switch a relay when the angle of inclination is below 15 degrees and illuminates a series ...
1
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1answer
161 views

Is it possible to wire an accelerometer straight to lights?

I am currently working on a personal project and was wondering if there was any way to wire an accelerometer to an LED light to illuminate the light when a set g-force is achieved. I am not too ...
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1answer
101 views

Compensate centrifugal force in accelerometer measurements

I'm working on a project that includes counting the revolutions of a cylinder connected to an engine. This engine runs at a minimum of 5 revolution per second and a maximum of 9 revolution per second. ...
2
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1answer
49 views

Adafruit Feather (Arduino compatible) nRF52 SPI with ADXL345 issues

I’m experiencing some issue in trying to make ADXL345 accelerometer works in SPI by using an nRF52 feather. I'm using the ADXL345 SparkFun library read values from it. Here are the connections ...
0
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1answer
70 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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1answer
165 views

Suggestions for accelerometer signal conditioning

I want to use an adxl326 accelerometer to measure vibration in one plane only. The accel is fed 3.3V and returns 1.65V at 0G's +/- 57mV/G What I want to do is remove the 1.65 bias to get an ac signal ...
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1answer
51 views

Checking my mpu6050 schematic

I am fairly new to pcb design and I just created a mpu6050 chip that will work with an Arduino microprocessor. I want to make sure the hookup is all correct before I start work on the other parts, as ...
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2answers
98 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 ...
0
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1answer
500 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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0answers
43 views

Can't use the Wake-on-Motion functionality of an MPU9250 with STM32

Hi there :) I'm trying to use the Wake-on-Motion functionality of this particular MEMS (MPU9250) with my STM32L152C-Discovery board: if the MPU9250 sense a motion, the INT pin will be high. To achieve ...
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1answer
2k views

Building a small 3-axis accelerometer mote

I'd like to build a remote device which reports its current 3-axis acceleration to a nearby (<10m) receiver. It needs to be as light and as small as possible. (I have no preference as to the ...
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0answers
31 views

I need help on interfacing STM32F103C8T6 with MPU6050 on keil uvision

I need help with this piece of code. I don't know what I did wrong, or what I'm missing. It is a simple program to interface the stm32f103c8t6 with a gy-521 (the MPU6050 on it), I was able to get it ...
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0answers
48 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). ...
0
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1answer
72 views

How to convert accelerometer data into G with the ADXL345 digital accelerometer

Am totally new to electronics and the datasheet is very confusing to me, so can anyone please guide me through the specification of the accelerometer? So that i can have a better understanding on the ...
0
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1answer
621 views

how to program BMI160 inertial measuremen unit to latch detection flags

How should BMI160 registers be set to enable detection flags to be set in INT_STATUS? For example, how to get TAP_STATUS byte-0 bit-5 s_tap_int to set if XDK110 is tapped? I don't need actual ...
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0answers
80 views

STM32f103 interfacing with adxl345 via i2c

I am working on interfacing ADXL345 accelerometer with STM32F103 blue pill board through I2C communication. I have written the code in Keil software by surfing the internet which works fine sometimes, ...
2
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4answers
3k views

Fall Detection using Accelerometer

I am now developing a micro-controller based system that detects when a person falls down using Accelerometer. The accelerometer might be placed in the person's cloth pockets. The important thing is ...
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3answers
2k views

Removing noise from accelerometer data

I am new to signal analysis and I need to remove noise from an accelerometer recording. 2 accelerometers are mounted a machine and recorded vibrations at 500 Hz. The aim is use vibrations to ...
2
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3answers
3k views

How to interpret TI Chronos watch accelerometer data

I've been trying for an embaressing amount of time to figure out how to interpret the wireless accelerometer data from the TI Chronos. From my laptop with the usb-radio included, I read it into python ...
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2answers
66 views

Acceleration calculation from ADC raw data

We have interfaced PCB393B12 accelerometer with MSP430F5438A board, by using 8-bit ADC. We receive raw data in 0-255 range with 0v to +2.5v as reference. How we can obtain corresponding ...
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1answer
105 views

Cable for MEMS Accelerometer

I am using a MEMS Accelerometer (ADXL1001), along with the EVAL board and an NI 9234 DAQ module to acquire the signal. I am using a RG58 coaxial cable to connect the sensor output (2 connector pins, ...
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2answers
2k views

Sensors to detect and measure movement

I would like to know which sensors should I use in order to get measurement of a movement of my device (slow speed movement on a 2D plane, in cm or mm if possible). The goal is to find out if the user ...
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1answer
68 views

No change in MPU6050 values when interfaced with PIC. Why?

I'm trying to interface mpu6050 module with pic16f886 microcontroller. But, i'm getting x-axis, y-axis and z-axis as 0. Why is there no change in readings even when i move my mpu? edit: This is the ...
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2answers
1k views

MPU6050 with STM32 reading axes X,Y,Z values problems

I have an STM32F303 Discovery and I want to use the I2C bus to receive the x,y,z data from an accelerometer MPU6050. Does anyone have source code for this? The problem is that the address of the ...
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0answers
39 views

USART displays only half values when VCC is plugged in and repeats the same after VCC is removed [duplicate]

I'm trying to interface mpu6050 module with pic16f886 microcontroller. But, nothing's getting displayed on serial monitor. USART code works fine when used separately, but when added with the i2c and ...
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0answers
110 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
32 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 ...
4
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2answers
1k views

MPU6050 accel/gyro noise that behaves strangely - what might be doing this?

I'm experimenting with an MPU6050 six-axis accelerometer/gyro reading data with a Raspberry Pi via I2C. The six-axis response makes sense in general as I rotate it by hand, rotating moves the gravity ...
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2answers
681 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"...
5
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1answer
74 views

Identify an Accelerometer in an Xfinity XR11 Remote

part identification question here. It comes from an Xfinity XR11 Remote. It’s used to detect acceleration when picking up the remote. The footprint and part/trace placement heavily matches what I’d ...
3
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2answers
2k views

How do I find source of vibration from a mechanical source outside of my home?

My problem is vibration from a mechanical source outside of my home. I think I have found the source (machinery at a legal marijuana grow op) and need to prove it to get an injunction at court. I ...
0
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0answers
101 views

OSError: [Errno 121] Remote I/O error or pigpio.error: 'I2C read failed' on MPU6050

So I use MPU6050 to get acceleration from stepper motor linear rail movement(steper motor working in thread, I use pigpio for the motor) by make the MPU6050 can work on threading and it can show data ...
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1answer
75 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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4answers
293 views

Using change in magnitude of accelerometer to calculate speed?

I have a wheel (say 60cm in diameter). And I am planning to attach a small board with an AVR and an accelerometer about 10-20cm from the centre. As the wheel spins, I will get acceleration outwards. ...
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0answers
24 views

How does “Tilt on Wrist Interrupt is detected with one accelerometer axis” work?

bma456 has a tilt-on-wrist detection interrupt. When ever the device is rotated more than a minimum of 12 degrees to gravity, an interrupt interrupt is generated. In the data sheet, it says "The Tilt ...
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4answers
255 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 ...
0
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4answers
73 views

Acceleration in the Z direction in Earth frame regardless of orientation

I have acceleration readings on 3 axes from an accelerometer, I'm trying to find a way to get the acceleration in the vertical direction independent of the current orientation of the sensor. I have ...
2
votes
2answers
319 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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1answer
5k views

Simulating accelerometer in proteus

I am not able to find any libraries for simulating accelerometer in proteus. Is there such a library? If NO, how do i simulate an embedded system that has an accelerometer? Thanks
5
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2answers
3k views

Why am I seeing drift when using Madgwick algorithm to correct for orientation with 9 DOF IMU?

I am trying to correctly track orientation of a sensor with accelerometer, gyroscope, and magnometer, using the open source Madgwick algorithm. The algorithm returns quaternions which represent the ...
0
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1answer
108 views

LIS2DH12 Watermark and Overflow Interrupts at the same time

I'm working on a project that uses the LIS2DH12 accelerometer by ST (product page). I have a couple of questions about it, and as it is quite a common part, I wonder if anyone here knows the answers: ...
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0answers
31 views

Understanding the SIGNAL_PATH_RESET register

I'm trying to understand the signal path reset register in the ICM-20608-G IMU. In what condition would I ever want to reset the signal path? What is actually being reset? Is this intended to clear ...
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0answers
15 views

IMU Power Modes

The invensense ICM-20608-G power modes in the datasheet are well enumerated, but it is unclear how to enter those modes. There does not seem to be a direct value that can be written to a single ...
0
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2answers
72 views

Servo accelerometer dual power rail requirement

Why does this type of accelerometer need split supply. In the data-sheet this is described as a excitation voltage. But the diagram they provide does not show any +/- rails or any excitation ...
4
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2answers
3k views

Measuring accelerometer frequency with an oscilloscope

I've got a VTI CMA3000-D01 digital accelerometer and I'm controlling it via SPI from a Texas Instruments CC2540 chip using the embedded 8051 MCU. In the datasheet for the CMA3000, it mentions that ...
6
votes
1answer
320 views

Transient drop in accelerometer gravity reading when in motion

I am using Pololu AltIMU-10 v4's accelerometer to monitor the acceleration of my system. I understand that when the sensor is placed upright on the table, it should measure 1g in the +ve z-axis. ...
0
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1answer
1k views

Interrupt and FIFO settings in LSM6DS3

Requirement: Need to use only accelerometer in LSM6DS3 at 104 Hz in 2g full-scale mode and FIFO in Continuous mode. Interrupt should be generated every 320 msec. Understanding: For every 1 sec there ...