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Using Hall as encoder input

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Using Hall as encoder input

Hi Everyone

I'm working on a project, where I'm going to use 8 VESCs (4.12), to control some diferrent motors for a machine I'm thinkering with :)

For all of the VESCs I need positional feedback, not only for 360 degrees, but like an encoder..
To save the parts and use the motors as encoders, I would like to use the Hall signals, as encoder input..
But could someone point me in the right direction for this ?
I have been scanning through the source-code, and have a full toolchain running, but I really would like some help, so I can move forward

 

I have search the forum, but not found some usefull help yet :(
I remember a video where Banjamin Vedder, had two motors connected with CAN, where he was using one as an encoder, and the otherone then keeps the position for many rotations ? :)

 

Thank you in advance