Petoi Bittle X V2: An ESP32 Robot Dog That Can Even Backflip on Command

Published  April 8, 2026   0
V Vedhathiri
Author
Petoi Bittle X V2 robotic dog with ESP32 board and sensor expansion features

Robotics just got a whole lot more exciting and a whole lot more accessible. Petoi's Bittle X V2 is a palm-sized quadruped robot dog powered by the BiBoard V1, a custom ESP32-based board that packs serious intelligence into a surprisingly compact frame. With nine degrees of freedom delivering smooth, lifelike movement, an interactive back touch sensor that literally responds when you pet it, and 35-plus built-in voice commands  from sit and walk to dance, flip, and step  all processed entirely on-chip without any internet connection or cloud dependency  the Bittle X V2 feels less like a gadget and more like a living, breathing companion. And if 35 commands aren't enough for you? You can program up to 10 additional custom voice commands yourself. 

What truly sets the Bittle X V2 apart from every other robot kit on the market is how far it can grow with you. It is easily expandable with Raspberry Pi 3, 4, or 5  with no adapters or wiring hassle required on the V2  and supports a wide range of external sensors including distance, IR, light, gesture, and PIR sensors, effectively transforming it into a fully walking IoT and AI research platform. An optional robotic arm gripper can also be added for object handling and movement coordination taking the hardware possibilities even further. Whether you are a student, a researcher, or a seasoned developer, the Bittle X V2 meets you exactly where you are.

For the makers and coders, this is where things get really interesting. The Bittle X V2 supports Python, C++, and Scratch-like block-based coding, giving users at every skill level the tools to modify existing movements, design entirely new behaviors, and push the robot's capabilities to their limits.

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