16×16 NeoPixel Square Pixel Display by @ecken #3DPrinting #CircuitPython

Build a square pixel display with a 16×16 NeoPixel matrix and black LED acrylic. Use a Feather and PropMaker FeatherWing to easily connect the display using a 3-pin JST cable. Make rainbows and LED animations using CircuitPython.

Download PDF, STLs and CAD files on Thingiverse

LED Animations in CircuitPython

16×16 NeoPixel Matrix

Feather M4 Express

PropMaker FeatherWing

Doubler FeatherWing

3Pin JST Cable

M2.5 Hardware Kit

1200mAh Battery

Black LED Acrylic 12x12in Sheet

The frame, cover and grid diffuser are 3D printed with PLA filament. The black LED acrylic is cut using a PDF template.

The black LED acrylic is press fitted into the cover.

The 16×16 NeoPixel matrix is wired to the 5V, GND, and DIN pads with a 3-pin JST cable.

4x M2.5 x 6mm long standoffs are used to secure the FeatherWing Doubler to the frame.

The Doubler FeatherWing is seucred to the mounting holes on the 3d printed frame.

The 3D printed grid diffuser is placed over the 16×16 NeoPixel Matrix. Small cutouts are designed to fit over the resistors and capacitors that allow the flexible PCB to be flush with the grid diffuser.

The grid diffuser is press fitted into the frame.

The 3-pin JST cable passes through the 3d printed frame.

The frame is press fitted into the cover. The 3-pin JST cable plugs directly into the NeoPixel port on the PropMaker FeatherWing.

Optionally connect a battery to make the display portable, otherwise plug into USB-5V power supply.

Use the CircuitPython LED Animation library to animate all of those lovely NeoPixels.

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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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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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