Uploaded June 2023 | Updated September 2026, 3 hours ago
Bias vector plus scale matrix calibration and azimuth calculation …
↓↓↓ Complete description, time index and links below ↓↓↓
We’ve covered the temperature dependent offset of our AMR Wheatstone bridge sensors and its compensation in the last video (link below). Now we have to calibrate our MMC5983MA magnetic sensor using an offset vector plus a scale matrix.
We start with a short recap, because we’ve already done that for the QMC5883L (link below). Then we 1st collect some data, 2nd calculate the vector & matrix from it, and 3rd write some code to apply them. Finally we calculate the azimuth.
00:00 Intro – bias vector & scale matrix calibration
00:22 Overview & recap – we already did that for the QMC5883L
02:30 Data collection – for the biases and scales calibration
04:59 Biases and scales calculated – with a free windows program
06:45 Calibration code – copy & past from the QMC5883L
12:18 Azimuth calculation – two values, trigonometry and arctan2
18:31 Wrap-up – have to clean up the library now, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Basics youtu.be/mlgslhsQ-L8
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (1) youtu.be/GlvbhHb22u4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (2) youtu.be/k5PudDDylX4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (3) youtu.be/4tchL8AY53A
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (4) youtu.be/fXAJN2KxfTQ
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (5) youtu.be/VBFjtTrTLc4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (6) youtu.be/HEKQfgcHaXQ
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (7) youtu.be/H1q5SxzyNtA
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (3) youtu.be/O3ZtVkj6CvU
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (4) youtu.be/RJovRafwgo8
Messung des Erdmagnetfeldes in der PTB ptb.de/cms/nc/ptb/fachabteilungen/abt2/fb-25/ag-251/live-daten-erdmagnetfeldmessung.html
Download Magneto v1.2 sites.google.com/view/sailboatinstruments1
My code drive.google.com/drive/folders/1jEaOnqETn5CjnEnY6cmd6Vgdahb93Gxh?usp=sharing
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
Bias vector plus scale matrix calibration and azimuth calculation …
↓↓↓ Complete description, time index and links below ↓↓↓
We’ve covered the temperature dependent offset of our AMR Wheatstone bridge sensors and its compensation in the last video (link below). Now we have to calibrate our MMC5983MA magnetic sensor using an offset vector plus a scale matrix.
We start with a short recap, because we’ve already done that for the QMC5883L (link below). Then we 1st collect some data, 2nd calculate the vector & matrix from it, and 3rd write some code to apply them. Finally we calculate the azimuth.
00:00 Intro – bias vector & scale matrix calibration
00:22 Overview & recap – we already did that for the QMC5883L
02:30 Data collection – for the biases and scales calibration
04:59 Biases and scales calculated – with a free windows program
06:45 Calibration code – copy & past from the QMC5883L
12:18 Azimuth calculation – two values, trigonometry and arctan2
18:31 Wrap-up – have to clean up the library now, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Basics youtu.be/mlgslhsQ-L8
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (1) youtu.be/GlvbhHb22u4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (2) youtu.be/k5PudDDylX4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (3) youtu.be/4tchL8AY53A
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (4) youtu.be/fXAJN2KxfTQ
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (5) youtu.be/VBFjtTrTLc4
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (6) youtu.be/HEKQfgcHaXQ
MEMSIC MMC5983MA 3-Axis Digital Compass & Arduino MCU – The Details (7) youtu.be/H1q5SxzyNtA
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (3) youtu.be/O3ZtVkj6CvU
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (4) youtu.be/RJovRafwgo8
Messung des Erdmagnetfeldes in der PTB ptb.de/cms/nc/ptb/fachabteilungen/abt2/fb-25/ag-251/live-daten-erdmagnetfeldmessung.html
Download Magneto v1.2 sites.google.com/view/sailboatinstruments1
My code drive.google.com/drive/folders/1jEaOnqETn5CjnEnY6cmd6Vgdahb93Gxh?usp=sharing
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
