A sensor to measure acceleration.
-2
votes
0answers
60 views
Which kind of sensors should I use to mimic a reference? [closed]
My project for this summer will be to make a robot arm that does a 1:1 mimic of one of my own arms. I'm at the very beginning stages of design and am conceptualizing what it will be and how I will ...
1
vote
1answer
34 views
LSM303DLHC low-power and high precision modes
The LSM303DLHC is a 3-axis accelerometer + 3-axis magnetometer chip from ST. The datasheet is a bit light on details however. I'm trying to work out
what is different about the low-power mode and ...
1
vote
2answers
97 views
Problems while using accelerometer as a motion switch
I am using an accelerometer ADXL206 and a microcontroller PIC16F917 to determine the relative linear motion of a device that functions according to this motion.
I can read data from the ...
1
vote
1answer
94 views
How to get translation and roation data using 6DOF MPU6150
I am trying to get the position data from an IMU 6 Degrees of Freedom (MPU-6150) board using an Arduino Uno. I am trying Jeff Rowberg’s example MPU6050_DMP6.ino that may be found here.
This is the ...
-1
votes
3answers
128 views
How to decrease the sensitivity of a sensor (accelerometer) [closed]
The accelerometer in this kit are very sensitive. Even a small touch changes the values very rapidly. I want to lower the sensitivity of the sensor. What is the way of doing this?
0
votes
3answers
106 views
Converting two's complement hex values to binary?
I'm reading x-axis accelerometer data from an IC via the I2C bus using I2C-Tools ( specifically i2cget ) in Linux. Here is the code that is reading these values:
...
5
votes
1answer
106 views
How can I lower output impedance of an accelerometer?
I'm planning to use an accelerometer with a microcontroller to measure acceleration. The issue that I have ran across is that in PIC microncontrollers the ADC requires that the connected analog ...
0
votes
0answers
92 views
Angle errors in IMU (using Accl & Gyro)
I am making Autonomous Quad.
I am programming my IMU using ADXL335 -3 Axis analog Accelerometer & L3G4200D 3-axis digital Gyro.
I am using ARM Cortex M4F based TI's stellaris launchpad LM4F120XL.
...
0
votes
0answers
63 views
Calculating covered distance using AHSR sensor
I want to measure in real-time the distance covered by a AHSR sensor between two points
(basically I am trying to measure the stride length during the walk, so I will attach the sensor to a foot, and ...
0
votes
1answer
100 views
accelerometer for linear displacement
I have accelerometer readings from the android device.
I would like to know what kind of acceleration this data represents(rotation or linear acceleration).
Is there anyway I can use this data to ...
0
votes
1answer
432 views
Wiring a GY-521 to an Arduino Uno R3?
I am searching for a non-technical picture or diagram or explicit textual instructions explaining how to wire a GY-521 Accelerometer/Gyro to an Arduino Uno R3.
I am a software developer and need ...
3
votes
1answer
98 views
Problem stacking accelerometer and SD card shields on Arduino UNO
I have an ADXL345 accelerometer on a Makershield stacked on top of a Seeed SD card shield. Both of those are stacked on an Arduino UNO R2.
I've got each working individually, but when stacked they ...
2
votes
2answers
192 views
low pass filter design for accelerometer
I find the following code for a simple implementation of a low pass filter.
#define alpha 0.1
accelX = (acceleration.x * alpha) + (accelX * (1.0 - alpha));
I have been experimenting with the value ...
1
vote
1answer
139 views
how to wire up LIS302DLH with arduino? (or similar, small accelerometer)
heads up: I'm new to electronics and have just started working with the arduino.
I'm trying to hook up a LIS302DLH accelerometer (spec sheet) with the arduino. ...
5
votes
2answers
126 views
Does MEMS accelerometer stability deteriorate over time?
I am wondering if over time MEMS accelerometer produces any worse output than when it is new? I found this research paper which acknowledges that temperature affect sensor output but there are no ...
3
votes
2answers
597 views
Accelerometer data smoothing filtering pothole detection
I wanted to start a separate thread concentrating on smoothing filtering and detecting bumps and potholes with an Arduino and my Accelerometer. I'm using an Analog Accelerometer set to 50HZ bandwidth ...
5
votes
2answers
204 views
How can I detect angular movements and disregard lateral movements?
I'm working on a project that involves a flat platform that a user can tilt from side to side and forward and back. I'd like a sensor that can monitor the angle difference between the platform's ...
1
vote
1answer
116 views
Arduino logging vertical acceleration data
I'm doing a project where I want to start and stop recording of accelerometer data set up to measure the vertical acceleration Z axis of a car's suspension movement when it hits a pothole. I want to ...
0
votes
3answers
154 views
arduino logging acceleration data
I had a general question about logging accelerometer data on the Arduino or any microcontroller.
I had a KXPS5-3157 accelerometer hooked up analog mode to measure z-axis vertical acceleration in a ...
1
vote
1answer
165 views
Accelerometer and Transistor
Here is my program, I want to:
The microcontroller, Arduino UNO R3 sends 3.3V to the sensor, Accelerometer, MMA7361
The sensor turns on and send signal to the microcontroller.
When I move the sensor ...
-6
votes
2answers
99 views
(Need help ASAP!) Electric motor bike with BASIC Stamp [closed]
We're doing the project is to develop an electric motor bicycle to assist the bike rider going up steep hills. In our project, we modified a bike with combination of electric motor, goniometer sensor ...
2
votes
2answers
136 views
Measuring the balance of a rowing boat
Basically, I'm an amateur rower with mechanical engineering experience, however I am lacking in electronic knowledge. I need to find a way of measuring the pitch of the boat whilst I'm rowing, the ...
3
votes
3answers
265 views
Determining the angular displacement of a steering wheel
I am working on a project in which I am designing a vehicle driving simulator.
In this project I need to measure the angular displacement of the steering wheel. The car in software simulator ...
4
votes
3answers
370 views
Getting coordinates of a device in a 3d space
I want to make a device that knows itselfs x and y coordinates in a 3d space, for example in a room. I can move the device anywhere in the room but I just need x and y coordinates. Is there anyway ...
3
votes
2answers
455 views
Small Wireless Gyroscope & Accelerometer
I'm looking to assemble a very small circuit to transmit data from a gyroscope and/or accelerometer to a computer via wi-fi. It also needs to be self-contained (so should contain a power source).
The ...
3
votes
5answers
232 views
How would I condition the signal from an accelerometer for a microphone input?
I'm looking to measure vibrations using a 3-axis analogue accelerometer connected the the microphone input on a PC. Ideally I want to combine the 3 axis into one signal as I don't really care about ...
7
votes
1answer
698 views
Arduino + gyro/accelerometer == flight controller …?
Can I use the combination of an Arduino Mega + MPU-6050 gyro/accelerator module instead of a flight controller? Is there something else needed?
It is said that the gyro/acceleration can be used to ...
1
vote
1answer
4k views
How to read a gyro/accelerometer
I recently purchased this MPU6050 GY-521 breakout board. I tried it with my Arduino Mega using this Arduino sketch provided by official arduino.cc.
(MPU-6050 Datasheet, InvenSence (producer) Page)
...
4
votes
1answer
190 views
Modelling MEMS accelerometer's measurement noise using datasheet (ADXL330)
I'd like to model an Analog Devices ADXL330 MEMS accelerometer using data provided in its datasheet to estimate measurement noise. I'm using a simple mathematical model defined in the paper ...
12
votes
1answer
3k views
What are the differences between a gyroscope, accelerometer and magnetometer?
What is the difference between a 3-axis gyroscope, 3-axis accelerometer and 3-axis magnetometer? How do these sensors work? Why are all 3 used in some devices like smartphones, tablets, quadcopters ...
5
votes
1answer
307 views
Recovering data from a saturated accelerometer
I have an ADXL345 accelerometer and mounted it to a hybrid rocket to launch. Unfortunately, I forgot to set the range from its default of +/-2g to +/-8g (we expected 6g during liftoff).
For +/-2g ...
2
votes
2answers
365 views
Choosing an accelerometer
I would like some help in choosing the right accelerometer for my application. I have been looking at a lot of accelerometers from various major manufacturers and have done some testing on one of the ...
2
votes
2answers
220 views
Circuit movement detector
I'm looking for some simple schematic for movement detection.
I want to use it with a small hobby project of my own to detect if someone is moving the box, doesn't matter the direction. I'm looking ...
2
votes
3answers
222 views
Which accelerometer and storage chip should I use to measure Foosball rod acceleration?
I want to prove my coworker rotates and laterally moves a foosball rod twice as fast as me.
I was thinking I'd need a biaxial accelerometer (which one?) attached to the rod in between men (to not ...
0
votes
3answers
688 views
Cheap accelerometer in DIP package?
I've been looking around to see if there's a relatively cheap (around £5) accelerometer / tilt sensor in a DIP package for prototyping. Breakout boards exist for the ADXL335 but seem to be ...
0
votes
1answer
145 views
Measuring rotation over z-axis (gravity axis) inside an metallic duct
Well from my first research from the web I wasn't able to tell if what I need can be done.
The thing is, I need to measure the rotation over z-axis (yaw), in other words, to know the relative angle ...
2
votes
1answer
1k views
Rotating a gyroscope's output values into an earth-relative reference frame
For whatever reason, I seem to have gotten myself twisted into quite a confusion on how to process data from my 3 axis gyro and 3 axis accelerometer to get gyro rotation values related to the earth's ...
6
votes
2answers
232 views
Adequate decoupling / noise reduction for two accelerometers?
This is my first PCB, so please forgive some of my ignorance! I'd like to mount two accelerometers (ADXL193: +/- 250g), orthogonally, on the same PCB, and have a question about noise.
The current ...
2
votes
1answer
296 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 ...
1
vote
0answers
84 views
Can internal PLL affect control logic in MEMS sensor?
I am trying to set up LSM320DL digital accelerometer-gyroscope. The gyro part works as it's supposed to, but I have no luck with accelerometer.
I cannot achieve communication between MCU and ...
0
votes
0answers
266 views
Starting with accelerometers, which to choose? [closed]
So I am trying to buy a low cost accelerometer to use with my Arduino and PIC projects. I don't know much about them, and would appreciate some advice.
I have come across two which interest me: the ...
1
vote
1answer
510 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 ...
3
votes
2answers
752 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 ...
1
vote
1answer
482 views
What is the most common type of accelerometers in today's smartphones?
I know there are 6 different types of sensors for measuring acceleration:
Capacitive
Piezoelectric
Piezoresistive
Hall Effect
Magnetoresistive
Heat transfer-based
I have trouble finding a source ...
2
votes
2answers
1k views
IMU (gyro + accelerometer) breakout board with integrated Kalman filtering?
I am in need of a reliable gyro/accelerometer combo, that already has built-in motion processing (don't want to deal with Kalman filters in software). It seems that there are breakout boards out there ...
2
votes
1answer
320 views
Vibration Measurement using Accelerometer ADXL335
I like to know how to measure vibration in Hz using ADXL335/similar sensor in one axis, With that sensor, after converting digital using ADC, now i have some 8-bit binary value(0-256 in decimal)... ...
5
votes
5answers
586 views
Most small / cost effective way to detect changes in altitude?
I want to make a device, which when placed on someone skiing or snowboarding, will be able to tell whether that person is sliding down the slope. The problem is two-fold. I must first detect whether ...
0
votes
0answers
134 views
Issues with Kionix KXTF9
I'm having problems in reading HP filtered acceleration from this sensor. Everything else is working (like normal accelerations) but I always get 0 while reading registers 0x00-0x05 (of course I'm ...
3
votes
1answer
930 views
Data from BMA180 accelerometer into arduino is sporadic
I've been trying to get a BMA180 (I'm on my second one already) to send a continuous stream of accel data via a serial port (eventually bluetooth but that's a problem for a different day). I've looked ...
2
votes
4answers
677 views
Did anyone build an accelerometer-based mouse?
To save my hands from CTS (Capal Tunnel Syndrome), I want to have a mouse that uses an accelerometer, connected to any limb in the body, to replace the conventional mouse that you move with your hand.
...
