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Topic: Guide to gyro and accelerometer with Arduino including Kalman filtering (Read 313 times) previous topic - next topic

kriista

I'm doing that but sometimes it craps out, which is weird as I'm using serial call-response, so I shouldn't be asking for data until it's ready for it.

Sometimes it works fine for over an hour and other times it drops after a couple of minutes.

Stone cold bummer.

julio79

@freak174

I'm sorry .. I use the same sensor.

How did you find these values?

double zeroValue[5] = {950, -400, 13500, -100, -500};

you can edit your skecth?

freak174

#342
Sep 14, 2012, 08:40 pm Last Edit: Sep 14, 2012, 08:43 pm by freak174 Reason: 1

@freak174

I'm sorry .. I use the same sensor.

How did you find these values?

double zeroValue[5] = {950, -400, 13500, -100, -500};

you can edit your skecth?


Hello! I dont have the sketch no more, I partly gave up on this sensos hehe.
However, if you look at Lazarus sketch it is basically the same https://github.com/TKJElectronics/BalancingRobotArduino/blob/master/BalancingRobotArduino.ino#L317-334

But Id recommend you to use this sketch instead as it is made for your sensor https://github.com/jrowberg/i2cdevlib/blob/master/Arduino/MPU6050/Examples/MPU6050_DMP6/MPU6050_DMP6.ino#L95

When I used the later mentioned sketch I got it to work with the yaw,pitch,roll values but when I try to combine it to work with a servo I get fifo overflow and the code gets screwd up.

cheers

APH3X2N

This is awesome, and probably just what i need!

I'm planning to create a gyroscopic platform on which i will mount a GoPro camera or a Contour camera. I will be mounting this onto a motorbike on an actual race track, so it will go through some pretty intense forces. Then i want to compensate the camera angles using e few servos. I only need to compensate for the pitch and roll at this time.

I have experience with arduino's and the coding but im not familiar with the gyro and accelerator sensors.

I do have a few questions:

Offcourse the first question is; considering the forces applied on the sensors by putting it on a motorbike. Will this still work?

and; is using a gyro and accelero enough to fully remove the drift or will i also need the magnetometer (i need the platform to remain absolutely level to the human eye)?

and; are the resulting values usable to compensate using servo's?

i will probably be using this board with my arduino:

https://www.sparkfun.com/products/10121

Thanks in advance,

Niels

Lauszus

@APH3X2N
It should work perfectly fine if you can find some servos that are strong enough to handle force.
You don't need to use a magnetometer an accelerometer and gyro should be fine.

I actually got some example code for that IMU: https://github.com/TKJElectronics/Example-Sketch-for-IMU-including-Kalman-filter/blob/master/IMU6DOF/ITG3205_ADXL345/ITG3205_ADXL345.ino

Also take a look at this project a guy posted at this post a while ago: http://arduino.cc/forum/index.php/topic,58048.msg508589.html#msg508589
And his post as well: http://arduino.cc/forum/index.php/topic,68755.0.html

Regards
Lauszus

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