Used for: Education Home & consumer Research
Petoi Nybble Q
Petoi · Starting from $435 · Get a current price
Overview
Palm-sized open-source robot cat for coding education and hobby robotics. 11 servo joints (2 head, 1 tail, 8 legs), a 3D-printed body, and the ESP32-based BiBoard with built-in WiFi and Bluetooth. Programmable in Petoi coding blocks, Python or Arduino C++ on the OpenCat framework, with 35+ built-in behaviors via mobile app or voice commands. Sold pre-assembled in lite-servo and alloy-servo versions.
Software & 3D models
- URDF: not found
- MuJoCo: not found
- Isaac Sim (USD): not found
- Gazebo: not found
- CAD (STEP): yes
- SDK: yes
- ROS: yes
- ROS 2: not found
- RoboDK: not found
Checked 2026-10-17. Links are not published; we share them with clients.
Variants & pricing
| Variant | Status | Available | Current price |
|---|---|---|---|
| Nybble Q (lite servos, pre-assembled) | available | — | $435 |
| Nybble Q (alloy servos, pre-assembled) | available | — | $515 |
Get a price for the Petoi Nybble Q
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Full price history
| Price | Date | Variant | Source | Note |
|---|---|---|---|---|
| $435 | 2026-10-17 | Nybble Q (lite servos, pre-assembled) | Petoi official store | Pre-assembled cream, lite (plastic-gear) servos, USD list; shipping and tax excluded. White version same price but sold out on the read date. |
| $515 | 2026-10-17 | Nybble Q (alloy servos, pre-assembled) | Petoi official store | Pre-assembled cream, alloy-gear servos, USD list; shipping and tax excluded. |
Sensors
- 6-axis IMU (MPU6050 or ICM42670)
- Built-in voice microphone
- Ultrasonic sensor (per store highlights)
- Optional Raspberry Pi / Arduino modules
Locomotion
quadruped walking, trotting
Use cases
education, STEM, hobby, research
Software
OS: OpenCat firmware (ESP32) · SDK: ✓ · ROS: ✓ · Open source: ✓ · Languages: C++, Python, Block coding
Key facts
- Petoi spec page: standing size 240 x 115 x 150 mm, weight 403 to 433 g (the card uses the lower figure; which configuration weighs what is not stated), 11 servo joints, 3D-printed frame, 2-4 hours to build the construction kit.
- Battery is a 7.4 V 1000 mAh Li-ion pack (7.4 Wh), about 1 hour of play, USB-C charge in 1.5 h; the charger is not included.
- Naming check: the older 'Nybble' (NyBoard V1, ATmega328, wooden frame, 250 x 107 x 140 mm, 320 g) is now marked 'Final Stock' on petoi.com; Nybble Q is the current cat with the ESP32 BiBoard. The older Nybble specs are not used here.
- The store's 'at a glance' text says 'From $249 (kit) / $299 (pre-assembled)', but the product's variants and price box show $435 (lite) and $515 (alloy) for the pre-assembled cat on the read date; the variant prices are recorded because they are what the cart charges.
- Store text says Nybble Q follows Petoi's original platform (Indiegogo 2018, delivered 2019) and shares the OpenCat framework with Bittle X; it lists Python API, Arduino IDE, coding blocks and ROS2 support.
- Voice commands (35+ built in, 10 programmable in C++) run on the robot; Raspberry Pi mounts on a dedicated socket on the BiBoard.
- Open question: store 'at a glance' text says From $249 (kit) / $299 (pre-assembled), cart variants charge $435 (lite) and $515 (alloy), and the FAQ says no self-assembly kit is sold; variant prices recorded.
About Petoi
Maker of open-source programmable desktop quadruped robots (Bittle dog, Nybble cat) and the OpenCat framework, aimed at STEM education and hobby robotics.
https://www.petoi.com · Founded: None · HQ: United States
Last updated: 2026-10-17 · Full dataset (CSV/JSON, CC BY 4.0)