Dear cek,

Please let me know what is related to the staring moment, the acceleration ? The angular rate? Or anything else? So , please let me know how to modify the source code to fix the problem

Regards,
Amin

Hi,

I have a project to control a boat, I am using openIMU300za in my project, I have a question about the starting angle of the IMU, I am using AHRS code, when the openIMU300za powers up, the default roll and pitch angle will be the position of the starting moment of the sensor, for example when there are waves in the water, the sensor will not show me the correct angle because it started with a wrong angle as zero, how can I start my openIMU300za in any sensor angle but follow real positions?

is there any way in the source code to fix start position in the algorithm ?

Regards,
Amin.

Thank you so much, I need to know about algorithm . Please explanation the method.

Best regards
Amin

Hello again, It seems that there are two method for magnetometer calibration, 3D and 2D , please explanation 2D method for calculation soft and hard iron and transformation matrix.

Best regards
Amin

Hello, I want to use an external magnetometer in my project, how can I calibration my external magnetometer sensor? Please explanation a method or offer me, I want to using attitude from openimu300zi and use an external magnetometer sensor .
Your method for calibration magnetometer is only rotate in z axis for 1 or 2 minutes and final output is coefficients of hard and soft iron , and it seems that your transformation matrix is a matrix 2x2, is it right? If so , please explanation how to calculate coefficients and bias vector?

In this figure, the magnetometer sensor rotate in x,y,z axis and It has a 3x3 transformation matrix and 3 bias ...

Best regards
Amin

Hello again, is it open source too?

Best regards
Amin

Hello , how much is INS401 ?
Best regards
Amin

Hi, it's easy

Hi, since you need to use the regulator , you have to using some capacitors ... there is no problem.

Hi,

How to use setUserMagAlignParams() ? how to calibrate magnetometer manually and compute hardIron_X , hardIron_Y , softIron_Ratio and softIron_Angle to use with setUserMagAlignParams()? what is your calibration algorithm? please give me an article about your calibration method. the source code of ProcessMagAlignCmds is not available, can you please show me the source code of ProcessMagAlignCmds function?

I was sent start mag align with autoend command to the sensor, I then rotate the sensor in z axis more than 720 degrees, I can confirm that its working but the accept and save to eeprom command is not working. after sending accept and save to eeprom command ( 55 55 6D 61 01 05 A1 8B – Accept Mag-Align Results (write to eeprom) ) it will not save to eeprom, after restart it will start with default values.

please help me to calibrate my openIMU300ZI.

Regards,
Amin.