humanoidrobots.systems

petoi/bittle · spec sheet

Petoi Bittle / Bittle X specs

Palm-sized servo-driven robot dog kit for STEM education running the open-source OpenCat framework; Bittle X is the current version.

Maker
Petoi
Class
Quadruped
Status
Active
Availability
Kit
Country
United States, Pittsburgh
Level
L1 Compiled
01

Media

none on record
No licensed media on record for Petoi Bittle / Bittle X yet. We only show our own renders from public URDF/MJCF, Wikimedia Commons files with their exact license, images from the robot’s own open repositories, and the maker’s official videos. No press images are hotlinked. Have an openly licensed image or an official video? Send it with the correction form.
02

Specifications

6/12 fields sourced
Petoi Bittle / Bittle X specifications
Heightspecs.heightCmunsourced
Massspecs.massKg0.29kg
Degrees of freedomspecs.dofunsourced
Payloadspecs.payloadKgunsourced
Top speedspecs.speedMpsunsourced
Runtimespecs.runtimeMin60min
Battery capacityspecs.batteryWhunsourced
Pricespecs.priceUsdunsourcedUS$195 on the 2020 Kickstarter; see Petoi store for current Bittle X price
Actuatorsspecs.actuatorsPWM servos
Computespecs.computeNyBoard V1 (customised Arduino Uno) on original Bittle
Sensorsspecs.sensorsIMU
Year introducedyear2020
Licenselicense.hw / .sw / .docsSoftware: MIT

Note · Only the firmware/software (OpenCat) is open: GitHub reports MIT while Petoi's site says GPL3+. Injection-molded frame CAD not found published, so cad/bom=false. Runtime ~1 h walking per New Atlas. OpenCat repo was renamed from PetoiCamp/OpenCat. A simplified URDF (bittle_simple.urdf/.xml) is in Resources/SimulationModels.

03

Openness

method
45 / 100Partly open
ArtifactPublicWeightPoints
CADopenness.cadno250
Bill of materialsopenness.bomno200
Sim model (URDF/MJCF)openness.simyes2020
Firmwareopenness.firmwareyes1515
Softwareopenness.softwareyes1010
Trained policiesopenness.policiesno100
score = Σ weight × public45
04

Models, repositories, links

5 links
05

Videos

2 tagged · 0 from the maker's channel
Petoi Robot Dog Bittle: Open Source Robot KitPetoiCampOfficial embedyoutube.comPetoiPetoi Bittle / Bittle X
Introduction of Petoi Bittle X | Smart Programmable Robot Dog For Everyone | Petoi CampPetoiCampOfficial embedyoutube.comPetoiPetoi Bittle / Bittle X
06

News and papers

0 stories · 0 papers

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07

Sources

last checked 2026-09-24
  1. [1]New Atlas: Bittle Kickstarternewatlas.com/robotics/petoi-bittle-robot-dog/checked 2026-09-24
  2. [2]OpenCat repogithub.com/PetoiCamp/OpenCat-Quadruped-Robotchecked 2026-09-24
  3. [3]BBC Science Focus reviewsciencefocus.com/reviews/bittle-robot-dog-reviewchecked 2026-09-24
  4. [4]Petoi Bittle X product pagepetoi.com/products/petoi-robot-dog-bittle-x-voice-controlledchecked 2026-09-24
08

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Cite this page

humanoidrobots.systems. “Petoi Bittle / Bittle X specs.” Hyperspawn, data revision 2026-10-08. https://humanoidrobots.systems/petoi/bittle

Machine-readable: /data.json (record petoi/bittle).