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3D Printed BMO with LED Matrix Face

Make your own BMO with 3D Printing and DIY electronics. This adorable robot features a mini 8×8 LED matrix and GEMMA, adafruit’s tiny arduino-compatible micro-controller.

3D Print the parts, solder the components and assembly this cute video game robot to have an awesome adventure time!


Grab the files on thingiverse and 3d print the parts in your favorite color.


The Mini 8×8 LED matrix powers 64 LEDs to display bright and super cute animations. Here’s what the complete circuit looks like. The push button should also have enough slack for it to move around in the enclosure. Gemma acts as BMO’s brains, while the LED matrix+backpack is his face. We can assume the battery is his heart 😉


You can print BMO’s buttons in different colored ABS or paint each piece.

Want to 3D Print and build your own BMO? We have a easy to follow tutorial and the STL files are available for free on Thingiverse!

Full Tutorial
Download STLs

3D Printed and build BMO? Be sure to share it on thingiverse as a make! Built your own adorable robot? Let us know in the comments below and join our Show n Tell on google+!


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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