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Welcome to Otto Builders the community of Otto DIY robot, we share knowledge, solve problems and make all kinds of opensource robots.

🤗 We are moving our community to Discord

In order to have quickly centralized and smooth communication with our Otto Builders, we will be now focusing our community building efforts and answering all your questions directly in the discord chat.

César commented a month ago
📝 Post
3D Printing
Hola a todos, aquí os dejo un archivo comprimido con los arcivos stl de las distintas piezas para completar el Otto granjero.
Camilo replied a month ago
🔧 Project

Ping Pong game (1 & 2 players option) w/ Otto Smart Extension

👋🏼Hello everyone! After the great post by @David Myers about gaming with Smart extension, I had decided to combine the 2 versions of Pong he showed in the post by putting both codes together and adding a menu to choose which one you want to play. Here is a video demo but also the Arduino code!

Could this be better?

Definitely! If you would like to collaborate with this, I have some ideas that would love to implement:

  • Adding Otto reactions. Making the robot to move and make sounds as reactions to game actions. (Difficulty: easy)
  • Improving menu. I made... (More)
Camilo liked a reply 2 months ago

Modified Ninja

I was not satisfied with either US eyes or a Ledmatrix.
With some -rather rough- modifications I was able to position the 16x8 Led matrix as a mouth underneath the eyes.

I studied ways to have US sensor, buzzer, pushbutton and ledmatrix and I found as the best way this wiring:

A0 = Pushbutton (switches to +)
D0 = GPIO16 US Echo pin
D1 = GPIO4 SCL (I2C)
D2 = GPIO5 SCA (I2C)
D3 = GPIO0 Right Foot
D4 = GPIO2 Right Leg
D5 = GPIO14 US Trigger pin
D6 = GPIO12 Buzzer pin
D7 = GPIO13 Left Foot
D8... (More)