We stock the boards, sensors and modules this project needs. A full parts list is coming soon — for now, browse our DIY Kits & components or search for Arduino parts.
The Arduino Nano acts as the brain of the robot, processing sensor data and controlling movement. Four servo motors manipulate the legs to enable walking and dancing motions, while an HC-SR04 ultrasonic sensor detects nearby obstacles in real-time, allowing the robot to alter its path and avoid collisions.
Why Build This
Great introductory project for beginners in robotics and coding
Fully customizable body design and open-source code
Interactive movements including walking, dancing, and obstacle avoidance
Real-World Application
Educational robotics platforms like the Otto robot are widely used in STEM classrooms to teach children and beginners the fundamentals of coding, mechanical engineering, and autonomous navigation.
Skills You'll Learn
Arduino programming and IDE usage
Servo motor control and calibration
Integrating ultrasonic sensors for navigation
Basic electronics wiring with expansion boards
Safety Precautions
Ensure correct polarity when connecting the battery pack to prevent short-circuiting the Arduino Nano or expansion board. Handle the servo motors with care during mechanical assembly to avoid pinching fingers, and disconnect power before modifying any wiring.
Technology Tags
ARDUINO NANO
SERVO MOTORS
ULTRASONIC SENSOR
BUZZER
3D PRINTED PARTS
Frequently Asked Questions
Yes, you can use a DIY cardboard alternative to craft the body parts if a 3D printer is not available.
The HC-SR04 ultrasonic sensor detects obstacles in front of the robot, allowing it to change direction autonomously.
You can connect an optional buzzer to the expansion board and program the Arduino to play various beeps and melodies.
This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.
