GPS+AHRS with Xadow Mbed (mag calib)

[whatnick]

I have been following your work for a while and I have created a GPS- AHRS stack using modules from the Xadow family. You can see my mbed code here: https://developer.mbed.org/users/whatnick/code/Xadow_MPU9150AHRS/ . I was wondering if it would be possible to add the magnetometer initial calibration code to the mbed library. FYI , Xadow M0 runs the sensor fusion loop at 500Hz.

[kriswiner]

Hi Tisham,

Everything I put on github is open source; are you proposing to add
something from my repository for MPU9150 mag calibration on mbed? This is
fine with me. The most recent (complete) mag calibration function is
actually in the MPU9250 code.

Kris

-----Original Message-----
From: Tisham Dhar [mailto:notifications@github.com]
Sent: November 30, 2015 5:42 PM
To: kriswiner/MPU-9250
Subject: [MPU-9250] GPS+AHRS with Xadow Mbed (mag calib) (#35)

I have been following your work for a while and I have created a GPS- AHRS
stack using modules from the Xadow family. You can see my mbed code here:
https://developer.mbed.org/users/whatnick/code/Xadow_MPU9150AHRS/ . I was
wondering if it would be possible to add the magnetometer initial
calibration code to the mbed library. FYI , Xadow M0 runs the sensor fusion
loop at 500Hz.

Reply to this email directly or view it on GitHub
#35 .
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pLPJRgaJpZM4Gr732.gif>

[whatnick]

Yes I was proposing to port the calibration code to this library you have on mbed - https://developer.mbed.org/users/onehorse/code/MPU9150AHRS/ .

[whatnick]

Could you point me to the .ino file with calibration code in it.

[whatnick]

Looks like the sample loop is here: magcalMPU9250 . I will port this over to mbed.

[kriswiner]

See:

https://github.com/kriswiner/MPU-9250/blob/master/MPU9250_MS5637_AHRS_t3.ino

You can also read about some magnetometer calibration studies I did here:

https://github.com/kriswiner/MPU-6050/wiki/Simple-and-Effective-Magnetometer
-Calibration

Kris

-----Original Message-----
From: Tisham Dhar [mailto:notifications@github.com]
Sent: November 30, 2015 6:33 PM
To: kriswiner/MPU-9250
Cc: Kris Winer
Subject: Re: [MPU-9250] GPS+AHRS with Xadow Mbed (mag calib) (#35)

Could you point me to the .ino file with calibration code in it.

Reply to this email directly or view it on GitHub
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[kriswiner]

Let me know if I can help...

-----Original Message-----
From: Tisham Dhar [mailto:notifications@github.com]
Sent: November 30, 2015 6:57 PM
To: kriswiner/MPU-9250
Cc: Kris Winer
Subject: Re: [MPU-9250] GPS+AHRS with Xadow Mbed (mag calib) (#35)

Looks like the sample loop is here: magcalMPU9250 . I will port this over to
mbed.

Reply to this email directly or view it on GitHub
#35 (comment) .
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pLQPqgaJpZM4Gr732.gif>

[whatnick]

Hi Kris I have update the MPU9150 with the calibration loop here - https://developer.mbed.org/users/whatnick/code/Xadow_MPU9150AHRS/file/46b5acee9472/MPU9150.h . You could add it to your main repo for other Mbed users.