Technical Articles
2024-12-29

How to Create an OTTO Robot: A Step-by-Step Guide

How to Create an OTTO Robot: A Step-by-Step Guide

OTTO is an open-source small robot, using an Arduino Nano board with an IO expansion board. It is powered by four SG90 9g servos and supports ultrasonic sensors in the standard DIY version. Programming can be done using tools like Arduino IDE or mBlock. It’s simple and fun.

All files can be obtained from its official website, including 3D printing model files and installation files, etc. The website is https://www.ottodiy.com/

How to Create an OTTO Robot: A Step-by-Step Guide

How to Create an OTTO Robot: A Step-by-Step Guide
After downloading all OTTO model files from the official website, use a 3D printer to print the body of the robot.
How to Create an OTTO Robot: A Step-by-Step Guide
The above image shows the printed body. Note that there are two versions of the official 3D model: one DIY version suitable for SG90 servos, and another PLUS version suitable for MG90 servos.
How to Create an OTTO Robot: A Step-by-Step Guide
Follow the installation instructions in the downloaded document. Note that the servos need to be adjusted to the 0-degree position first. You can install the servos on the main board and use the servo home program in the package to adjust it. Of course, some Arduino programming knowledge is required.
How to Create an OTTO Robot: A Step-by-Step Guide
NONA mainboard
How to Create an OTTO Robot: A Step-by-Step Guide
Installing servos and other components
How to Create an OTTO Robot: A Step-by-Step Guide
Installation is complete.
How to Create an OTTO Robot: A Step-by-Step Guide
Time to play.

Arduino series pinout diagram

Three common motor driver modules for Arduino

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