Who is Otto?
An interactive robot that anyone can make!
What can Otto do?
Otto walks, dances, makes sounds and avoids obstacles.
Why Is Otto special?
Otto is completely open source, Arduino compatible, 3D printable, and with a social impact mission to create an inclusive environment for all kids.
Otto was inspired by another robot instructable BoB the BiPed and programmed using code from another open source biped robot called Zowi.
Otto's differences are in the assembled size (11cm x 7cm x12cm), cleaner integration of components and expressions. Using off the shelf and 3D printed parts, simple electronics connections (almost no welding required), and basic coding skills, you will be able to build your own cute Otto friend in as little as two hours!
Otto is design using Autodesk 123D Design software you can modify it for customization or further improvements!
This instructable focuses on how to build the Otto DIY version - yes, more Ottos are coming and you can stay tuned for updates by subscribing on ottodiy.com
Step 1: First gather all parts and tools
Gather all the off the shelf parts that you'll need for this assembly. Here's the list:
1. Arduino Nano; preferable with the pins already weld it
2. Arduino NANO Shield I/O Extension Board Expansion XD-212
3. Mini usb cable. (most Arduino dealers provide the cable)
4. HC-SR04 Ultrasound sensor.
5. Mini servo SG90 9g x4 (each one should come with 2 pointed screws and one small screw).
6. 5V Buzzer.
7. Female to Female breadboard connectors cable 10cm x6.
8. 4 AA Battery case
9. 1.5V AA batteries x4.
10. Mini cross screwdriver. important magnetized
And then you only need to 3D print 6 parts in total:
11. 3D printed head.
12. 3D printed body.
13. 3D printed leg x2.
14. 3D printed right foot.
15. 3D printed left foot.
Optional: cutter for post cleaning the 3d parts (if the 3d print quality is good enough no need) and a soldering iron (if you want it battery power otherwise can still connect it through usb to energize)
That's all simple!; Download all .stl files, If you do not have a 3d printer you can always use services like 3dhubs.com or local maker spaces.
If you think is difficult to find the parts, you can buy the full kit here!