OTTO NINJA - DIY Bipedal Dancing Robot Kit (Arduino Nano)

OTTO NINJA is a fun, walking, dancing bipedal robot kit inspired by the popular open-source Otto DIY robot platform - reimagined with a ninja theme (red headband, cape, and expressive googly eyes). Built around an Arduino Nano and 4 micro servo motors, OTTO NINJA can walk, turn, dance to music, make sounds, and detect obstacles using an onboard ultrasonic sensor, all fully programmable and open source.

Assembling OTTO NINJA teaches real mechanical and electronics fundamentals: servo-driven bipedal locomotion, sensor integration, and Arduino programming, wrapped in a character kids and beginners will love bringing to life. Since it is based on an open-source design, its 3D-printable body parts and code can be freely modified and extended, making it an ideal ongoing STEM project rather than a one-time build.

Features

• Arduino Nano Powered (ATmega328 microcontroller)
• Walking, Turning & Dancing Bipedal Robot
• Obstacle Avoidance with Ultrasonic Sensor (HC-SR04)
• 4x Micro Servo Motors for Leg & Foot Movement
• Built-in Buzzer for Sound Effects
• Learn Coding & Electronics through hands-on assembly
• STEM Education Kit for Age 8+
• Open Source Platform - customizable code & 3D-printed body
• Fun Ninja-Themed Design with Cape & Headband

What's in the Box

• 1 x 3D-printed Otto Ninja body parts (head, torso, legs, feet)
• 1 x Arduino Nano + I/O expansion shield
• 4 x SG90 Micro Servo Motors
• 1 x HC-SR04 Ultrasonic Distance Sensor
• 1 x 5V Buzzer
• Ninja headband & cape accessories, googly eyes
• USB cable, screws, jumper wires & mounting hardware
• Access to source code & assembly guide

Specifications

Who Is It For?

Ideal for kids, students and hobbyists (age 8+) who want a character-driven, engaging entry into servo robotics, 3D printing, and Arduino programming - great for school science projects, robotics clubs, and STEM exhibitions.