Petoi Bittle Programmable Robot Dog
Always wanted to build your own robot dog? If so, then look no further than the Petoi Bittle. This palm-sized robot is capable of moving with four legs instead of wheels, giving it more freedom to navigate unstructured terrains, similar to the much larger Boston Dynamics Spot. It’s very easy to build, thanks to its interlocking frame, and it takes around one hour to put together the body from scratch. Read more for a video, additional pictures and information.

On the technical side, it’s powered by a NyBoard V1 that has an Atmega328P (16MHz CPU, 2K SRAM, and 32K flash), an 8K I2C EEPROM, an IMU, a servo driver for 12 PWM servos, an infrared receiver, a buzzer, a 2×5 socket to mount on a Raspberry Pi, WiFi/Bluetooth, an audio amplifier, and a speaker. Best of all, it costs just $195. More information here.

LEGO MINDSTORMS EV3 31313 Robot Kit with Remote Control for Kids, Educational STEM Toy for Programming and Learning How to Code (601 Pieces)
  • Builders of all ages will love building and coding their fully-functional robot to walk, talk, and even play games or complete tasks! This educational STEM robot toy makes engineering fun for everyone who builds it.
  • LEGO MINDSTORMS EV3 is built with 601 pieces and includes the intelligent EV3 Brick, 3 servo motors, plus color, touch and IR sensors. Connect with your smart device and download the free EV3 programmer app to control the robot!
  • LEGO MINDSTORMS EV3 comes with instructions for 17 different robotic designs, each with its own unique features. Builders can program their STEM robots to talk, walk, grab, shoot targets and more! Kids will love this creative and educational toy!
  • LEGO MINDSTORMS building toys are compatible with all LEGO construction sets for creative building.The perfect tech toy if you want to build your own robot and explore endless learning activities
  • The main robot, SPIK3R, is over 16” high, 14” long and 15” wide.

Petoi Bittle Programmable Robot Dog
Petoi Bittle Programmable Robot Dog

Bittle is driven by our OpenCat code. It has 3K lines of Arduino codes excluding 3rd party libraries. It defines the minimal data structure and algorithms for performing quadruped motion. We also provide example commander and parser in Python so that you can send instructions from other devices. The code is already running on thousands of small quadruped robots, including many variants of OpenCat,” said its creator.