The Factory | Calibrating Magnetometers & Raw Data Applications
ฝัง
- เผยแพร่เมื่อ 5 ก.พ. 2025
- Magnetometers are able to measure the strength of magnetic fields. Combine the readings from two axes using trigonometry and you have a compass! This week in #TheFactory we're taking a look at the latest PiicoDev 3-axis Magnetometer prototype and brainstorming some fun and useful applications for magnetometers.
If you have any questions about this content or want to share a project you're working on head over to our maker forum coreelec.io/forum
Core Electronics is located in the heart of Newcastle, Australia. We're powered by makers, for makers. Drop by if you are looking for:
• Raspberry Pi core-electroni...
• Arduino core-electroni...
• Sparkfun core-electroni...
• Adafruit core-electroni...
• Pololu core-electroni...
• DFRobot core-electroni...
The following trademarks are owned by Core Electronics Pty Ltd:
"Core Electronics" and the Core Electronics logo
"Makerverse" and the Makerverse logo
"PiicoDev" and the PiicoDev logo
"GlowBit" and the GlowBit logo
I mentioned in a previous video and I'll say it again folks, this is absolutely awesome content, so interesting.
magnetic gestures, close encounters, making music, extend the range by using several sensors vertical and opposite
Nice video!
Reading QMC6310 datasheet, it informs a sensitivity of 15000 LSB/G in the field range of +/- 2 G. Could you specify more on how to calculate the magnetic field amplitude? Thanks!
Find the magnitude of the three-dimensional vector: amplitude = sqrt( x^2 + y^2 + z^2)
@@MichaelRuppe Your equation is correct to give the magnitude of the field vector, but not exactly what I was asking for. After some reading, I figured it out.
Definitely, interesting topic. Keep doing that
For correct calibration, please check hard and soft iron adjustment.
That is very interesting
Glad to hear it 😄
how effective could you use a magnetometer, and 3 axis aligned electromagnets (coils) (preferably on the same core) to get dead reckoning of that object in 3space?
Like all involved project - it depends! We can see that there's a pretty clear correlation between field strength and the raw reading on an axis.
I guess the tricky part would be coming up with an appropriate trilateration algorithm. The field will change wildly depending on the magnet's pose - if the magnet is rotated in place the data will change, but the location will not... tricky!
Is this the Same as in Smartphones?
Very interesting …
I saw this video a while ago on the re-engineering of the Tesla door handles. It's a really clever application of a magnetometer: th-cam.com/video/Bea4FS-zDzc/w-d-xo.html
Loving the enthusiasm fellas :D
accelerometer and gyroscope
This video is very misleading. They do not calibrate Magnetometers. They just show the difference when between a calibrated and an uncalibrated magnetometer. What a waste of 10 mins of my life