Otto Ninja™ Starter kit


Unique robot that walks and transforms into a wheeled racer!

For Humanoid version click here

Build & program your Ninja robot right out of the box. 

SKU: N/A Category:


The most versatile educational robot in the world to learn robotics.

Build your own robot like a Ninja 🐱‍👤

This is the first emotional modular EdTech Arduino robot that can walks & rolls!


  • 👣 Walk & dance
  • 🚗 Transforms quickly  into a wheeled robot 
  • 👩‍💻 Simple Programming with Otto Blockly or Arduino
  • ⚙️ Metal high performance quality gear servos
  • 🧱 Expandable and modular
  • 🦇 Avoid obstacles with ultrasonic sensor
  • 👀 LED matrix emotional eyes to swap
  • 👀 Can swap to OLED eyes
  • 🔊 Makes emotional sounds and melodies
  • 👇 Button for interactions
  • 📱 Wireless communication – for remote controlling 
  • 🌐 IoT & Wifi
  • 🔋 Rechargeable battery & quick switch

List of Parts

  • Otto Ninja PCB ESP8266 
  • Micro USB cable Data Sync 1m
  • Battery 6F22 Rechargeable Lithium
  • 9V 650mAh with micro USB port “
  • Switch + Regulator + XH connector + Bat connector soldered
  • 2 x Ninja Servo 180° metal gears (it comes with 3 screws)
  • 2 x Ninja Servo 360° continuos rotation metal gears (it comes with 3 screws)
  • 2 x Oring 68mm OD 60mm ID 4mm
  • Ultrasonic sensor HC-SR04
  • Button with headers
  • 4pin Dupont cable with connector
  • 2 x 3pin Dupont cable with connector
  • Buzzer with headers
  • Screwdriver Phillips 2.5X40mm (with magnetic tip)
  • 4 x Metal self tapping screw M2*5 (they must be ferromagnetic)
  • Matrix 16×8 LEDs HT16K33
  • OLED display 1.3¨ (OPTIONAL)
  • 3D printed Ankle Left Black
  • 3D printed Ankle Right Black
  • 3D printed Base Black
  • 2 x 3D printed Foot Black
  • 3D printed Inner Bottom Black
  • 3D printed Legs Black
  • 3D printed Starter Lid Black
  • 3D printed Plate Matrix Lid Black
  • 3D printed Plate Ultrasonic Lid Pink
  • 3D printed Band Red

Otto Ninja STL files for 3D printing you can download from here.

How to build 3D guide here in this link

How to Code guide here in this link

Build out of the box


What can Otto Ninja do?

Otto Ninja can walk, transform, roll, show emotions, dance, sense motion & objects


Coding from beginner to advanced

Program Otto Ninja to think on it’s own using block-based coding with Blockly or C++ with Arduino IDE.


Want to just play? 

Via the kits wireless communication module, remote control your Otto Ninja by connecting to your mobile or tablet to race or have fun battles!

Additional information

Weight 500 g



No Soldering required


Rechargeable included


Maker, Builder