OpenCat

Health v2 · maintenance only

Adoption not part of the score

5219 stars · 616 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

OpenCat is an open-source Arduino/Raspberry Pi framework for building and programming quadruped robot pets like the Bittle robot dog and Nybble robot cat. It handles gait coordination, servo control, and IMU integration, serving STEM education, research, and DIY robotics development.

Use cases

• build a programmable robot dog at home
• teach STEM robotics and coding to students
• research quadruped locomotion and gait algorithms
• run reinforcement learning and sim-to-real experiments on a physical robot
• program a robot pet with Python, C++, or block coding
• develop IoT robotics applications with sensors
• create a DIY quadruped robot kit

When to choose

• you want an affordable, open-source quadruped platform for education or research
• you need a small, agile legged robot for locomotion or HRI experiments
• you want a robot that scales from block coding to C++/Python
• you plan to customize hardware with 3D-printed parts and sensors

When to avoid

• you need a large, high-payload industrial quadruped like Spot
• you want a wheeled robot or drone instead of a legged platform
• you need current-generation ESP32 hardware support, which lives in the separate OpenCatESP32 repo
• you only want a finished toy with no programming

Facets

framework · maturity active

robotics embedded simulation machine-learning developer-tools robotics education iot artificial-intelligence hardware iot cpp python embedded quadruped-robot robot-dog robot-cat gait-control servo-control stem-education sim2real block-coding petoi bittle nybble

Member repositories

For agents

markdown · JSON · MCP: product_card(name="PetoiCamp/OpenCat-Quadruped-Robot")