Petoi Nybble

Was $299

Discontinued · unavailableRobot catWooden kitOpen sourceOpenCat

UnavailableShipping: Sold out.

Overview

The robot cat that launched Petoi and the OpenCat framework via an Indiegogo campaign in 2018. A laser-cut wooden frame on hobby servos, it is the ancestor of the more popular Bittle. Its final stock has sold out. Petoi now sells the redesigned Nybble Q, which comes assembled with a 3D-printed body, an ESP32 board and feedback servos.

Type: Quadruped robot · Desktop / hobby kits
Maker: Petoi (US/China)
Released: 2018
Price: Was $299
Status: Discontinued · unavailable
Best for: Ages 14+
Programming: Open source (hardware + software)

Price and shipping

Last price on petoi.com. The original Nybble was sold as "Final Stock" and is no longer listed. The successor Nybble Q is sold pre-assembled for $435 (lite servos) or $515 (alloy servos).

Shipping: Sold out. The original Nybble is no longer listed on Petoi's store. The successor Nybble Q is in stock there. Petoi Nybble Q ↗

Specifications

Category	Quadrupeds · Desktop / hobby kits
Released	2018
Country	USA, China
Availability	Discontinued · unavailable
Sales	580 Indiegogo backers, $136,536 raised (2018, estimate) Petoi ↗
Programmability	Open source (hardware + software)
Built-in autonomy	Reactive · Responds to its surroundings without a map, such as avoiding obstacles or following a person
LLM support	Possible via SDK · No built-in LLM. Its SDK lets software on a computer control it.
MuJoCo simulation	Maker URDF only · Official ROS 1 URDF (xacro) with meshes. No MuJoCo model found. ros_opencat (Nybble) ↗
NVIDIA Isaac simulation	Maker URDF only · Official ROS 1 URDF (xacro) with meshes. A community Isaac Gym environment (2024) also exists. ros_opencat (Nybble) ↗
Gazebo simulation	Official model · Petoi's ROS 1 packages include Gazebo launch files, a world and joystick control. ros_opencat (Nybble) ↗
Best for	Ages 14+ (maker rating)
Vision sensors	Camera, Sonar / ultrasonic
Actuators	Hobby servos
Audio	No audio
Compute type	Arduino / ESP32 / microcontroller, Raspberry Pi
Compute	NyBoard V1 (Arduino Uno-class ATmega328P), optional Raspberry Pi
Weight	Not published (est. ~300 g)
Speed	Not published
DOF	11 servos (8 legs, head pan/tilt, tail)
Sensors	IMU, optional ultrasonic, IR and camera modules
SDK	OpenCat firmware (Arduino C++), Python API, Petoi Coding Blocks

Common questions

How much does Nybble cost?

It sold for $299. Last price on petoi.com. The original Nybble was sold as "Final Stock" and is no longer listed. The successor Nybble Q is sold pre-assembled for $435 (lite servos) or $515 (alloy servos).