Petoi Nybble V2: World’s Cutest Open-Supply Bionic Robotic Cat


Meet Nybble, the palm-sized open-source bionic robot cat. Have fun watching it play tricks like a real animal, moving with 4 legs rather than wheels. Legged motion gives it more freedom to navigate unstructured terrains and express the joy of life whenever it moves. Evolving with an open-source gene, Nybble is an open platform to fuse multiple makers’ gadgets into one organic system. With a customized Arduino board coordinating all instinctive and sophisticated movements, you can clip on various sensors to bring in perception. You could also inject artificial intelligence capabilities by mounting a Raspberry Pi or other AI chips through wired/wireless connections. Have fun while improving your programming skills!

Successfully funded on Indiegogo!

Software Level

  • Real cat-like behaviors. Control with programmable behaviors & new tricks
  • STEM & robotics kit. Learn coding, customize, & program your own pet to make it come to life with amazing and cute tricks. Develop innovative & advanced four-legged walking robot gaits, locomotion, and kinematics behaviors for applications and research
  • Highly programmable. C++, Python coding
  • Wireless control. Use the Petoi mobile/desktop apps to configure and remote control via Bluetooth connection
  • Highly extensible. With Raspberry Pi & Arduino ecosystem
  • Built on OpenCat. Open-source project for a quadruped robot

Hardware Level

  • Legged motion. More freedom to navigate unstructured terrains
  • Specially tuned consumer-level servos as the joints. Simplify the control system & reduce the cost
  • Spring-loaded joints. Reduce shock on the gears of the servos
  • 5-component system. Body frame, actuator, electronics, battery & software
  • Sweet point of power/weight factor. Achieve impressive agility (max speed at 5 body lengths/second)

Nybble V2: What’s New?

  • Rechargable 7.4V 1000mAh Li-Ion battery. Provides 70 minutes of playing time
  • New remote. With graphical button design
  • 3D printed upper leg pieces
  • New servos. The new servos are differentiated by their cable length. Shorter cables are used for the neck, tail, and four shoulder joints. Longer cables are used for head tilting and the four knee joints
  • Servo arms. Screw B and D are both replaced by C (flat tip)

    • B is for attaching servo arms/circuit boards to the frame
    • D (sharp tip) is for attaching servos to the frame
  • 3D printed upper leg pieces

Nybble is suitable for adults and children over the age of 14. Kids can enjoy playing with Nybble under the supervision of an adult.


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