For my specific case, I want to build something like this: https://www.youtube.com/watch?v=I7vgha_N5s8&feature=youtu.be&t=40s
It is very similar to rotating LED displays, https://www.youtube.com/watch?v=VuPJoixToBM , except that several LED strips are stacked to provide a 3d volume).
From my understanding the ESC should by itself handle precise rotation speed just fine, but I see a hall sensor in this device. It may simply be there to determine where the "front" of the display is, but I believe there is also the possibility it is there to make the rotation even more precise.
Thoughts? Do I need to implement a custom PID with a hall sensor or should I be fine with an off-the-shelf ESC and it will provide me the needed rotational precision/accuracy?
Thanks.
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