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Does anybody know how to use a BLDC ( brushless dc motor) to control another bldc?
Ive seen a few vids, apparently it is best done with STM32 via CAN BUS ( no idea what that even means). What exactly do I need to purchase, and what kind of software and code is necessary?

My goal with this is to make one robot arm that I use as a joystick, to control another robot arm via remote control.