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Nybble

Price
From USD 435
Type
Quadruped Robots · Consumer Quadruped
Applications
Research & Education · Developer Kit / Research & Education · Education Platform
Status
Development ended
Availability
Discontinued
Purchase
Not disclosed
Release Date
2018
Country/Region
United States
Last Verified
2026-08-14
1 h
Runtime
0.42 m/s
Walking Speed
0.32 kg
Weight
0.15 m
Height

Nybble is Petoi’s open-source wooden robot cat kit for learning legged robotics. It combines 11 servo joints, ultrasonic sensing, an IMU, infrared control, mobile and desktop apps, and OpenCat programming. The modular platform supports Arduino, Python, block coding, and Raspberry Pi expansion for students, hobbyists, makers, and robotics educators.

1 / 1Nybble

Intelligence Profile

Learning ApproachOfficial claim
Teleoperation

Capability Map

MobilityOfficial claim
Balance

Petoi's official FAQ lists balancing among Nybble's available robot-cat actions.

InteractionOfficial claim
Human collaboration

The official page states that Nybble can be controlled with the included infrared remote or Petoi mobile and desktop apps.

Hardware Specification

Physical Specifications

Mechanical joint count
11
Locomotion Type
Legged walking
Materials
Wood
Total degrees of freedom
11 DOF

Mobility & Payload

Max Speed
2 km/h running
Walking Speed
0.42 m/s

Mechanical and mounting

Head DOF
2 DOF
Height
0.15 m
DOF per Leg
8 DOF
Length
25 cm
Weight
0.32 kg
Width
11 cm

Mechanical Structure

Actuator Model
11 Petoi digital PWM servos driven by brushed coreless motors
Joint Sensor Type
Potentiometers for servo position control
Joint Type
Servo-powered joints

Sensors

Attitude Sensor
TDK InvenSense MPU6050 6-axis sensor
Sensors
Ultrasonic sensors and gyroscope
Ultrasonic Sensor
Eye-mounted ultrasonic distance sensor

Battery and Runtime

Battery Capacity
1 Ah
Battery Type
Rechargeable Li-ion battery
Battery Voltage
7.4 V
Power Supply
7.4 V 1000 mAh 2S lithium-ion battery pack
Runtime
1 h

Compute Platform

Onboard Compute
NyBoard with ATmega328P; compatible with Raspberry Pi
Software Algorithm
OpenCat open-source quadruped robot framework

Interaction and Communication

Communication
Infrared remote, mobile app and desktop app
Remote Controller
Infrared remote controller

Development and Expansion

Graphic Programming
Petoi Coding Blocks
Operating Modes
Programmable movements and tricks
Secondary Development (SDK)
OpenCat open-source framework

Open source & build resources

Nybble kit assembly guide

Applicable version: Nybble · NyBoardBuy and assemble a kit
View official build guide
SoftwareOpen source

Source and a verified open-source license are available. Follow the terms of each resource.

Hardware designPartial hardware documentation

Official NyBoard V1.0 logic diagram, components and electrical interfaces. Applies to kits fitted with this board; complete robot fabrication files and hardware licensing remain unverified.

View explanation
Build resourcesAssembly guide only

Official Nybble kit assembly steps with illustrations and video. Requires the kit parts; a complete independently sourced BOM and fabrication files remain unverified.

View explanation

Related resources

  • OpenCat firmware (NyBoard)

    CodeMIT

    Open

  • NyBoard V1.0 controller interfaces

    Hardware

    Open

  • Petoi Desktop App: setup and calibration

    Tool

    Open

  • OpenCat Python serial-control guide

    Guide

    Open

Featured in: DIY Robots

Commercial Status

Status
Development ended
Price
From USD 435
Release Date
2018

Timeline

  1. Robot release
    Nybble
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