Otto is a small, humanoid robot that can walk, dance, and avoid obstacles. It is typically made from a 3D-printed body, with a simple design consisting of a head, body, and legs. The robot is powered by an Arduino Nano microcontroller, which controls its movements and behaviors.

Components:

• Arduino Nano: The brain of the robot that processes inputs and controls outputs.
• Servo Motors: Four servo motors are used to control the robot’s legs, enabling it to walk and dance.
• Ultrasonic Sensor: Located on Otto’s head, this sensor detects obstacles and helps the robot navigate by avoiding collisions.
• Buzzer: This component allows Otto to produce sounds or play simple tunes.
• Battery: A rechargeable battery powers the robot.
• 3D-Printed Parts: The robot’s body, head, and legs are typically 3D-printed, making the design highly customizable.

Working:

1. Movement: Otto moves using its four servo motors. Two servos control the forward and backward movement of the legs, while the other two control side-to-side movement, allowing Otto to walk, dance, or turn.
2. Obstacle Avoidance: The ultrasonic sensor on Otto’s head measures the distance to objects in front of it. If an obstacle is detected within a certain range, Otto can stop or change direction to avoid a collision.
3. Sound Production: The buzzer can be programmed to emit beeps or play simple melodies, adding an interactive element to Otto’s movements.
4. Programming: Otto can be programmed using Arduino IDE, allowing users to customize its behaviors, movements, and reactions. The robot’s open-source nature encourages experimentation and learning.

Applications:

• Education: Otto is widely used in educational settings to teach robotics, coding, and electronics.
• Hobby Projects: Many hobbyists build and modify Otto robots, experimenting with different designs and functionalities.
• STEAM Learning: Otto serves as a practical tool for learning STEM (Science, Technology, Engineering, Mathematics) concepts through hands-on experience.