This is not a question post, it’s just an informational post. This year, our team used a Neo motors to its full ability and it broke off its shaft. After the season, we decided to take it apart and look inside. I found this very curious and wanted to share it with everyone. I did a bunch of research into what each part is and since I am a programmer I was more interested in the encoder. From what I found on the Internet, it uses a Hall IC sensor, which detects the magnetic field. I am not an expert at this, so won’t go into much detail as I don’t understand it fully. When I was trying to find how it works, not much information was out there, so hopefully this will be helpful to whoever is curious about this. If anyone has any questions about the inside of the motor but doesn’t have a spare Neo to tear apart, let me know, I might get more detailed pictures or describe it to you! Or if anyone has any other insights, I’d be interested to hear them!
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This looks so cool!
Also more info about neo’s insides:
This thread:
And these slides:
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Very interesting info!
As you can see from the pictures the neo motor has fourteen magnets or referred to as fourteen poles.
The motor also has 3 sensors.That sends the passing of the magnets. Obviously fourteen is not easily divided by three. Therefore, each sensor can sense and send a signal 1 by 1.
Those signals are carried out.The encoder cable to the spark max controller.Which then decodes those pulses to determine both direction and rate of rotation.
I know this is a very short description and not very detailed but from that you can start learning the rest of the process of controlling the motor.
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This makes sense! Thanks for the explanation!