Fine positioning of brushless motors to arbitrarily low speeds
The NearZero (NZ) controller allows fine, slow motion, or positioning control of all brushless motors for direct drive applications, open or closed loop. Intended usage includes controlling hub motors for domestic robots, self-balancing devices, actuators for manipulators and robotic arms, and motorized or stabilized gimbals and mounts.
Open Source Files:
-- Brushless hubmotor with integral encoder
Robotics Mobility Package -- 2 Robowheels and 1 NearZero controller, discounted
Personal note from the maker:
I started designing this in 2018 when I first decided I wanted to base a company on building open source domestic robots. I was surprised to find an utter lack of (affordable) pre-existing options for the kind of brushless motor control one would want for robotics applications. It took many iterations, but I wound up with something that I feel is intuitive enough to start using immediately while being extensible enough to empower all the domestic robotics ideas I've been daydreaming about for so long. To assist others in realizing their electronic dreams, whether they be individuals, research groups, or companies, the NearZero is -- and always will be -- available as a stand-alone open source product, even once I'm producing complete and dexterous domestic robots using these for the motion controllers.~Justine Haupt