Getting the Absolute Rotation from Magnetic Encoder (Smart Knob)
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- Опубликовано: 12 сен 2024
- Let's take a look at the magnetic encoder in this device.
How would it work if I move backward and forward a magnetic object on the surface of the dual hall effect latch IC?
How can I count with the edge signal and level signal?
Also, it seems that we can make our own smart knob using a hall effect IC and 3d printer.
[Pulse Counter (PCNT)]
docs.espressif...
#MagneticEncoder #HallEffect #RotaryEncoder #PulseCounter #IoT #ESP32 #ThatProject
Combining this with a brushless DC motor it would give a nice haptic feedback
Awesome execution! Where did you get the magnetic ring from?
@@Everflamen Thanks. This is a disassembly of the product to see how the hall effect sensor and magnetic ring work. I did not purchase the magnetic ring separately.
cant wait for the Home Assistant integration
Thanks! Seems the question is what is the magnetic orientation of the portion of that magnetic strip that faces the hall effect sensor?
Waiting eagerly for the touch screen version.💓💓💓
I just bought a rotary switch for an arcade project.... maybe I should get this and make something new
Very cool video.
thank you
Trying to figure out how to make a motorized version without using a slip ring. Any recommendations on how? (Main issue is that the display would spin without a slip ring in the 2 main logical configurations)
Wow! That's out of my knowledge. I hope you can build your own motorized version!
What knob product is that, by the way? Hopefully much lower pricing than makerfabs
I believe they designed the knob. It's just a round plastic and magnetic ring in it. Makerfabs has a new product like this?
@@ThatProject So that knob is an Expressif product? Yes, makerfabs also sells a knob product
How many poles is a multipolar ring magnet??
Did you use 90 poles if the total scale is 360?
Did you use the magnets sold on the market?
This is the source code for how I got 360 degrees from the encoder.
int16_t cont_now = mt8901_get_count();
degree = cont_now * 4;
degree += 90;
degree *= -1;
What is the pole number of the ring magnet?
Isn't it counter +1 every time the play changes?
I used stm32f and
Multi-pole ring 6 pole application
It's 24 counters per lap.
The above video has 90 counters per lap
Is there a lot of poles in the ring magnet?
@@user-td5dx3nt4h They do not provide exact datasheets for their magnet rings. I have no idea how many poles are in it. I only changed the value read through the encoder to 360 degrees through the code.
hi, where did you got the magnet band? Do you know the datasheet?
It's a built-in one. I have only its GitHub page. github.com/wireless-tag-com/ZX2D10GE01R-V4848
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I wonder what the BOM is on so many magnets as opposed to using an capacitive couple strip like the inexpensive (but pretty accurate) calipers as characterized by BigClive here:
ruclips.net/video/fKSSY1gzCEs/видео.html
What's new in this
Any updates ?
Not much yet
Hello have some concerns that we have to create our senior project, hope you can assist us doing a meeting or something similar so you can guide us on that. Hope you can assist us we really need help. Thanks!
Chris, just checked this comment. Sorry for being so late. If you still need a business meeting, please contact me via my email. thatprojectstudio@gmail.com
Thanks! Seems the question is what is the magnetic orientation of the portion of that magnetic strip that faces the hall effect sensor?
Where the question is? Anyway, I think this can be figured out the direction easily using N/S magnetic.
@@ThatProject Was mainly wondering: Are there are multiple NS magnets imprinted in that circle?