Cozmo Face OLED Display

Who wouldn’t want to be able control Cozmo’s cute little face? Well now you can. Here you will find continually updated information on Cozmo face commands for the OLED display.

Cozmo Face – OLED Display

Detailed picture of the pixels on Cozmo's face screen OLED Display by Kinvert

We took a picture zoomed in to the pixel level.

Cozmo’s face is an OLED display covered by black transparent plastic. What is an OLED display, and why did they choose it for Cozmo’s face? Oh, and how do you say OLED?

Well first, as an Engineer, I typically hear “Oh lead”. That said, I tend to hear people call a normal Light Emitting Diode ( or LED ) and “El ee dee”. Luckily this is less controversial than how to pronounce gif.

OLED stands for Organic Light Emitting Diode. Unlike normal displays, which often are LCD, OLED generates its own light. In an LCD there are backlights, and each pixel merely blocks a certain amount of red green and blue to make a color.

OLEDs also have red green and blue ( or RGB ) however each pixel is made up of 3 tiny dots. One of each color. Each dot glows at a certain intensity which makes the color you see. OLED is a pretty cool technology actually.

Why is Cozmo’s Face an OLED Display?

OLED screens can be very small, and they look great. The picture quality of OLED is generally better than other options. This seems to be even more true for small screens.

Imagine needing a backlight. That adds parts and takes up space.

If there was a backlight, which glows even where you want the screen to be black, Cozmo’s black transparent plastic might glow a bit.

Long story short, OLED looks great, is compact, and is affordable for small displays like Cozmo’s face.

Cozmo face OLED display image convert_image_to_screen_data Kinvert Cozmo tutorial example project

How to Control the OLED Display in Cozmo’s Face?

Easy. Follow along.

There are ways to do this in Code Lab but at Kinvert we like to teach at a higher level than most. We focus on Python and the SDK. So let’s get started!

…oh, and by the way. You could always take one of our Courses. Wink wink.

One thing I did is searched their code base so you don’t have to. We have several things to work with:

This is from

In the future, as we do projects that use these commands, we’ll link to them.

Cozmo Face Needs Screen Data

Whether you are trying to draw, write, or show an image on Cozmo’s OLED display, you will need to make sure it is screen data. You can’t just throw stuff on his face.

To convert what you’re working with to screen data, you’ll use one of:

Examples / Projects

Looking for examples and projects that use the OLED display in Cozmo’s face? Look no further.

Wrapping Up

If you have any questions at all, please feel free to post a comment below or contact us via the Contact Page.

Also, don’t forget that we have a ton more information on the Anki Cozmo SDK in Python.

If you are looking for help developing STEM curriculum, check out our article on Cozmo Curriculum for STEM Education K-12.

Cozmo Examples, Tutorials, and Projects for K-12 STEM Education Curriculum

If you want to do similar things with Vector check out the Anki Vector SDK and our Anki Vector Coding Examples.

If you’re still very new to coding and robotics check out Block Coding and What is Robotics?

2 responses to “Cozmo Face OLED Display

  1. Hello,

    Is it possible to use Cozmo api to control another pled screen? A screen you could put somewhere than in Cozmo’s head?

    Thank you

    1. Thanks so much for a question that doesn’t leave me 75% certain it’s just a computer algorithm asking a fake question! We have several on our Cozmo Vs Vector page but the rest are pretty suspect lol.

      This would be difficult. With a robot like the Parallax ActivityBot you can do almost anything you want with the hardware. With Cozmo, the hardware is very very limited.

      The only way I can imagine pulling this off would be getting a duplicate screen and it would show the same thing as his face. I sort of doubt it would work and it would be very difficult.

      You could maybe find a pretty hacky to do this though by tapping in to his power supply and getting a small ESP8266 module that might be capable of communicating with the screen.

      I did a Google search for ESP8266 OLED Display and saw a few people that made me think this could be possible.

      If you’re looking for a way to keep it looking good, you might be able to 3D Print a trailer and Cozmo would pull the ESP8266 behind him, and you’d 3D Print a new head for Cozmo as well to fit the screen in the top. Also you’ll maybe want to move the speaker.

      Hope this helps! Please keep me up to date with this project it sounds really cool.

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