Location
Grove City, OH
About
About Me:
ex government parasite ex skydiver ex glider pilot ex mad scientist now just ex ;-)
Please tell us a bit about your UAV interest
no UAV interest, but play with Arduino-based robotics a bit
Hometown:
Grove City
Activity Feed
"Try my magnetometer calibration tool, based on an Matlab script written by Alain Barraud. For the whole saga start with
http://fpaynter.com/2016/04/magnetometer-calibration-part/ and then parts 2, 3, & 4. If you want to skip to the end, all…"
http://fpaynter.com/2016/04/magnetometer-calibration-part/ and then parts 2, 3, & 4. If you want to skip to the end, all…"
"Verson 2.1.3 is now current. The only changes were to add a 'model-referenced' coordinate system at (0,0,0) and move the original fixed 'viewport-refrenced' coordinate system to the bottom left corner of the viewport. This allows the coordinate…"
"All,
I have just finished a significant update to the Mag Cal Tool. The only functional change is that the 'Show Ref Circles' checkbox now works properly - 3D reference circles are optionally displayed in both windows. The reference circles in the…"
I have just finished a significant update to the Mag Cal Tool. The only functional change is that the 'Show Ref Circles' checkbox now works properly - 3D reference circles are optionally displayed in both windows. The reference circles in the…"
All,I have developed a Windows GUI for 3-axis magnetometer calibration (see screenshot below), and it is available for download at https://github.com/paynterf/MagCalTool. The tool accepts comma, tab, or space-delimited magnetometer data via a…
"Hi All,
Well, I was able to produce a decent GUI for magnetometer calibration, based on a MATLAB script. Since I wasn't smart enough to port all the MATLAB math to C#, I did the next best thing - I used calls into Octave to actually run the script,…"
Well, I was able to produce a decent GUI for magnetometer calibration, based on a MATLAB script. Since I wasn't smart enough to port all the MATLAB math to C#, I did the next best thing - I used calls into Octave to actually run the script,…"
"All,
I'm planning to make another run at the J.Merayo et al. "Scalar calibration of vector magnemoters" technique, but all references to the original paper point to paywalls of one sort or another. Anyone have a copy they can send me?
TIA,
Frank"
I'm planning to make another run at the J.Merayo et al. "Scalar calibration of vector magnemoters" technique, but all references to the original paper point to paywalls of one sort or another. Anyone have a copy they can send me?
TIA,
Frank"
"All,
See my blog post for an update on the 'outlier pruning' feature on my calibration GUI. You'll still need the MATLAB file referenced in the post, but at least you'll be able to generate a good dataset for the run ;-).
Regards,
Frank
"
See my blog post for an update on the 'outlier pruning' feature on my calibration GUI. You'll still need the MATLAB file referenced in the post, but at least you'll be able to generate a good dataset for the run ;-).
Regards,
Frank
"
"Yuri,
I downloaded and opened your MagMaster source, but I found only the 'MagMaster' files, not the 'MagViewer' ones. It is the viewer that won't open the higher comm ports :-(
Regards,
Frank"
I downloaded and opened your MagMaster source, but I found only the 'MagMaster' files, not the 'MagViewer' ones. It is the viewer that won't open the higher comm ports :-(
Regards,
Frank"
"Well, I may have spoken too soon about porting the MATLAB routine to C#. I'm getting lost in the translation from MATLAB code to MathNet matrix functions. For instance, I am reasonably sure that the MATLAB line
D=triu(qr(D));%avoids to compute…"
D=triu(qr(D));%avoids to compute…"
"Harry,
Yes, I have made a fair bit of progress. I found a MATLAB that does a spherical estimate based on a random (but hopefully representative) set of magnetometer points. Here's the text at the top of the routine:
% performs magnetometer…"
Yes, I have made a fair bit of progress. I found a MATLAB that does a spherical estimate based on a random (but hopefully representative) set of magnetometer points. Here's the text at the top of the routine:
% performs magnetometer…"
"Anyone have the math expressions for calculating the calibration matrix elements (M11 - M33) shown in the MagMaster program? I'm building my own program for this, but don't know how these elements are calculated. Any help would be appreciated
TIA,…"
TIA,…"
"Yes, I thought the 'high-number' comm port numbers might be the issue, but I couldn't find the source code, so no way to fix it. Instead I am constructing my own 3D viewer in C# .net, using an old (but still working) version of the EyeShot 3D…"
"As a test, I loaded the 'Arduino_Code' sketch onto my Mega, and then modified the code so that it simply reported random numbers between 1 and 1000 for the three magnetometer values, and then tried to connect MagViewer.exe to that, again without…"
"Hi,
I'm trying to use your very nice calibration toolset with the CK Devices Mongoose 9DOF magnetometer, and I can't seem to get the MagViewer program to 'see' the magnetometer data coming from the Mongoose. I have the serial port set for 9600…"
I'm trying to use your very nice calibration toolset with the CK Devices Mongoose 9DOF magnetometer, and I can't seem to get the MagViewer program to 'see' the magnetometer data coming from the Mongoose. I have the serial port set for 9600…"
