Profile overview
Who is Rongzhong Li?
Rongzhong Li is an inventor associated with China and United States. Their documented work in robotics & drones includes Petoi Bittle programmable quadruped robot dog, the contribution at the center of this evidence-backed profile.
Rongzhong Li began hand-building a small self-balancing robot cat in 2016, published the design as OpenCat, and developed it into Petoi's Nybble and Bittle programmable quadrupeds. Bittle packages a jointed body, servo drivetrain, inertial sensing and user-programmable control into a palm-sized physical robot that students and makers can assemble, train and extend.
What did Rongzhong Li invent?
Created the OpenCat quadruped platform, built its first robot-cat embodiment, and invented patented legged-robot structures later productized as Petoi's Bittle and Nybble kits.
What did Rongzhong Li accomplish?
Bittle's Kickstarter raised $567,000 from 2,052 backers, and Petoi reports shipping more than 30,000 OpenCat-powered robots to customers in over 60 countries.
What is known about Rongzhong Li today?
On June 7, 2025, Li personally posted technical NyBoard replies in Petoi's official support forum; Petoi also continues to list him as CEO and OpenCat's creator.




