Fibonacci64 Goggle Lens is a beautiful 50mm circular disc with 64 WS2812C-2020 2mm RGB LEDs surface mounted in a Fibonacci layout.

The 50mm diameter is perfect for mounting in the lenses of costume goggles!

Please note that for the goggle build you will need to ORDER TWO 50mm Fibonacci64 Lenses! The goggles are NOT INCLUDED, but available from Adafruit here: https://learn.adafruit.com/kaleidoscope-eyes-neopixel-led-goggles-trinket-gemma

I have created several LED art pieces in Fibonacci patterns. They are all very labor intensive to create, and so are fairly expensive and limited in quantity. I wanted to come up with a Fibonacci layout that was at least slightly easier to create, and therefore more affordable.

I have RGB LEDs in just about every form they come: strips, strings, rings, discs, etc. The LEDs on most discs are arranged in very regular rings. Fibonacci64 is different. The LEDs are arranged in a Fibonacci distribution. The makes the layout very organic and seemingly messy. But with the proper animation, spiral patterns emerge with spectacular results.

The WS2812C-2020 each only consume a maximum of 5mA, and that's at 100% brightness, solid white color. That's only 320 mA for all 64 combined. They are still very bright, and I usually only run them at about 25% brightness. They're perfect for wearables, powered with LiPo batteries.

It has solder pads on the back that match the pinout of the QT Py by Adafruit, or XIAO by Seeed. It can be used by any microcontroller via the 5V, GND, and Data In pins. It also has a Data Out pad, for connecting more LEDs on the same data pin.

The four mounting holes are surrounded by capacitive touch compatible pads. They're connected to the A0-A3 pads/pins on the QT Py footprint. The SAMD21 QT Py supports capacitive touch on these pins.

Specifications

• Size: 1.97 x 1.97 x .063 inch (50 x 50 x 1.6 mm)
• 2 layer printed circuit board
• FR4 substrate
• Black SMOBC (solder mask over bare copper)
• HASL (Hot Air Solder Leveling) Finish
• Designed in the US by Evil Genius Labs

Parts

Options available to purchase for additional amount:

• Lens: 3mm thick by 50mm diameter black LED acrylic lens with no holes
• Diffuser: 3mm thick by 52mm diameter black LED acrylic diffuser with mounting holes
• Case Kit: front diffuser, black M2 hardware, & acrylic back
• Fully Assembled: diffuser, open case, and assembled QT Py by Adafruit controller.

The "Fully Assembled" option requires, but does not include, a USB-C cable and power source (USB port, AC power adapter, battery pack, etc).

If the "Fully Assembled" option is not chosen, these parts are not included, but are required to assemble and use:

• Microcontroller (Arduino, ESP8266, ESP32, etc)
• Wires, connectors, crimp tool, etc.
• Soldering iron, solder, etc.

Parts I used in my builds:

• QT Py by Adafruit(https://electromage.com)
• Chemcast Black LED Acrylic

Assembly Instructions