MATLAB Arduino Tutorial 4 - Filtering Noise out of 3-axis Accelerometer Data in Real-time

Configuration:
- Matlab R2012a
- Arduino 1.0.1
- USB 2.0
- Freescale MMA7341L

[matlabarduino]

Hello, without specifics it is hard to recommend a particular filter. However, we encourage you to try the two filters described in the video and experiment with the filter parameters. The MATLAB code described above is fairly straightforward and you should be able to map it into Arduino code. Please keep us posted of your results. Sincerely, MatlabArduinoOrg

[udaysankar]

Is it possible that if we double integrate this filtered data, we can accurately predict the displacement

[benr]

Hi, I'm currently looking for a way to extract displacement data from an Android device's accelerometer. I'm aware that this is difficult because of the noise in the sensor data, and I've looked at implementing the exponential moving average shown in the first part of this video as a way to reduce the error. Do you have any other suggestions for algorithms to use to further reduce this error? Would multiple noise reduction techniques, compounded onto each other, help?

Thank you in advance, this was an informative video.

[amerranneh]

hi, very nice tutorials,
please is there a link to get the source code of matlab file ???

[dduay]

Hi, I'm doing a little project require sensitive data from accelerometer, also the filter calculation would be done in arduino, which method do you suggest here? Thank you!

[girardloic]

Thanks !! I hope it's gonna work on my signal

[qwertyuiop]

Does anyone know how to get the sliders to work in this example? I could really use some help. Thanks!

[riccardoarciulo]

hi,
i have a stupid question: i can't find the way to plot all the variables in the same plot like you do (because actually you show the code to plot one but then in the last part you are plotting x, y, z in the same praph
Actually i'm gonna plot Accelerometers (x, y, z), gyroscope (x, y, z), magnetometer (x, y, z) and Roll/pitch/yaw in 4 different plots .. i made some reaserches but no solutions
i know it's stupid but ....
thanks

[pfever]

Excellent! is the source available to download?

[vickysteev]

Hi, i am Vicki

Right now i am learning matlab, but i am just begginer at matlab, right now i want to learn about how to using low and high pass filter, Savitzky-Golay Filtering (SGOLAYFILT), mean and varians, and also find out the peak and valley point from the gyro and accelerometer signal, and all my data i get from excel.

can You give me some tutorial or code how to make it

I really hope You can help me to figure it out

Best Regards
Vicki

[anindyaananda]

can you share the code for me please ?