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Otto DIY Humanoid robot "the fat version" 3D Printer File Image 1
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Otto DIY Humanoid robot "the fat version"

HP Robots Otto avatarHP Robots Otto

May 23, 2025

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Description

Otto got arms and LED matrix to look similar to a "Human". Assemble with our Builder Kit H or create your own using the opensource designs.

I recommend to first check all documentation for the Otto DIY Starter if you are a beginner and ONLY then you can try to play with more advanced features of this Humanoid.

if you want to modify the design you can access the CAD source here. Otto Humanoid is design using Fusion 360 by Autodesk a 3D modeling software, alternately you can use TinkerCAD that is online, you can modify Otto parts for further improvements or create new accessories for new features.

Features

  • 💪 Arms with grippers
  • 🎤 Reacts to claps and noises (optional)
  • 👅 Expressive LED mouth
  • 👩💻 Simple Programming with Otto Blockly or Arduino
  • 📃 Instruction manual included
  • 🔌 Integrated USB charger
  • 👣 Walks & dances
  • 🦇 Avoids obstacles
  • 🔊 Makes emotional sounds and melodies

List of Parts

  • 🖥 Otto Nano Microcontroller I/O board
  • 🔌 Micro USB cable
  • 🔋 Rechargeable battery
  • ⚙ 6 x micro servo motors with set of screws.
  • 🦇 Ultrasonic sensor
  • 🔊 Buzzer
  • 🌈 16 x DuPont cables
  • Phillips screwdriver
  • Sound sensor (optional)
  • Matrix of 8×8 LEDs to express emotions 
  • All 3D printed parts

Assembly Instructions

Gather all the off the shelf hardware parts that you'll need for this assembly and follow the video and the .PDF in the files.

LEGS ARE ACTUALLY THE SAME PART FOR THE ARMS!

If you see some misalignment in the movements check that you center your servos before assembly but if you want more precise walk and movements then you can do some electronic calibration as we explain in this blog post article: https://www.ottodiy.com/blog/calibration

We invested lots of time and resources to provide open source code, software and hardware, please support this project by just giving us a ❤ Like and share and you are welcome to be a part of this friendly community of robot builders, teachers and makers. 

Join today our Otto Builder community

License:

Creative Commons — Attribution — Share Alike

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