# Fibonacci256 - 166mm disc with 256 HDR RGB LEDs

Fibonacci256 is a beautiful 166mm circular disc with 256 SK8922-EC20 HDR RGB LEDs surface mounted in a Fibonacci distribution.

- **Seller:** [Evil Genius Labs](https://www.lectronz.com/stores/evilgeniuslabs), Overland Park, Kansas, United States
- **Price:** $136.00 (USD, before shipping and taxes)
- **Availability:** Sold out
- **Categories:** Lights, LEDs, Displays
- **HS code:** 940560
- **Product page:** https://www.lectronz.com/products/fibonacci256-hdr-166mm

## Options

**Diffuser, Case Kit, or Fully Assembled**

- PCB & mounted LEDs only, no case, controller, or power supply
- Diffuser Only [Add $12.00] (1 left)
- Case Kit [Add $24.00] (0 left)
- Fully Assembled [Add $120.00] (1 left)

## Links

- [Documentation](https://www.evilgeniuslabs.org/fibonacci256-hdr-pixelblaze)

## Images

![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczODUsInB1ciI6ImJsb2JfaWQifX0=--f636842bfbb1bc85e51d12fa5dda2ffacf77194c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182710591.MP.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczODYsInB1ciI6ImJsb2JfaWQifX0=--6b9e57e380cf8feb7cbfd24721867f51233e750c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182707123.MP.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczODcsInB1ciI6ImJsb2JfaWQifX0=--b9b98488aeba85429b1fa190db9be4f9531a1b11/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182643708.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczODgsInB1ciI6ImJsb2JfaWQifX0=--ef6acae570f6b75f56c49272f032ce786b93d0e4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182646760.MP.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczODksInB1ciI6ImJsb2JfaWQifX0=--86e972cb8a3bf2741155a21052755ff99be46336/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182631195.MP.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTAsInB1ciI6ImJsb2JfaWQifX0=--d2bb7bc6c9e48b266bf21b2a46e1f3a4da49debe/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182658489.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTEsInB1ciI6ImJsb2JfaWQifX0=--ea6601a85869f4a95f4c76c970905ba2b0fed72e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182642189.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTIsInB1ciI6ImJsb2JfaWQifX0=--925000f99c031af07e0e21a221bfee3b79f074f8/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182702150.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTMsInB1ciI6ImJsb2JfaWQifX0=--e6cfb4895c53a9861887a8dc9e55a497c63ee81c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182637751.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTQsInB1ciI6ImJsb2JfaWQifX0=--2134702b45503b7d18698c70de4acd694587916e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182720845.MP.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTUsInB1ciI6ImJsb2JfaWQifX0=--d98c7fe94b9a831befd524aada0422f9edf57be3/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182636384.jpg)
![Fibonacci256 - 166mm disc with 256 HDR RGB LEDs](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTczOTYsInB1ciI6ImJsb2JfaWQifX0=--5ba23c22e350a78f3ffaa8326f55de3682aeb5b4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2022-09-01T18-3A57-3A53.000Z-PXL_20220901_182725897.MP.jpg)

## Description

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Fibonacci256 is a beautiful 166mm circular disc with 256 SK8922-EC20 HDR RGB LEDs surface mounted in a Fibonacci layout.

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.  Fibonacci256 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.

Each of the 256 SK9822-EC20 2020 RGB LEDs has its own decoupling capacitor built in, and 8 additional capacitors are included to further reduce noise.  The top and bottom of the PCB are large 5V and GND planes, to allow for the large amount of current required by the 256 LEDs.  Two separate three-pin headers are provided.  One for 5V, Data In, and GND, and the other for 5V, Data Out, and GND.  The Data Out pin can be used to connect to even more LEDs.

**Case Options**

The open case is built with 3mm black LED acrylic diffuser, black nylon M3 standoffs, black metal M3 screws, and 3mm black acrylic back plate with wall mounting hole. Available as kit or fully-assembled. More info and files are available [on Thingiverse](https://www.thingiverse.com/thing:4560896).

**Specifications**

- Size: 6.54 x 6.54 x .063 inch (166 x 166 x 1.6 mm)
- 2 layer printed circuit board
- FR4 substrate
- Black SMOBC (solder mask over bare copper)
- ROHS LeadFree HASL (Hot Air Solder Leveling) Finish
- Designed in the US by Evil Genius Labs
- Some PCBs are assembled in the US by Evil Genius Labs
- Some PCBs are assembled in the US by [ElectroMage](https://electromage.com)! See [Pixelblaze Maps](#pixelblaze-maps) below for more information.

**Parts**

Options available to purchase for additional amount:

- Diffuser: 3mm black LED acrylic 168mm circle.
- Case Kit: 3mm black LED acrylic 168mm circle diffuser, back plate with wall mounting hole, M3 black nylon standoffs, M3 black metal screws.
- Fully Assembled: diffuser, case, assembled [Pixelblaze controller](https://shop.electromage.com/products/pixelblaze-v3-standard-wifi-led-controller) with [Sensor Expansion Board](https://shop.electromage.com/products/pixelblaze-sensor-expansion-board), power supply, 5V power extension cable.

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):
  - [Pixelblaze](https://www.bhencke.com/pixelblaze) by [ElectroMage](https://electromage.com)
- Power supply.
- Wires, connectors, crimp tool, etc.
- Soldering iron, solder, etc.

Parts I use in my builds:

- [Pixelblaze V3 Standard](https://shop.electromage.com/products/pixelblaze-v3-standard-wifi-led-controller)
- [Pixelblaze Sensor Expansion Board](https://shop.electromage.com/products/pixelblaze-sensor-expansion-board)
- 5V power supply, 5V extension cable.
- [Dupont Connector Pins](https://amzn.to/2IiN84D)
- [Dupont Connector Housings](https://amzn.to/39pjZRk)
- [Dupont Crimper Tool](https://amzn.to/3cy1z2P)
- [24AWG Stranded Wire](https://amzn.to/2wpw1vj)
- [90 Degree Header Pins](https://amzn.to/2TnyDmx)
- [M3x6mm Button Head Hex Screw](https://amzn.to/31jA5sI)
- [M3x5mm+6mm Male-Female Hex Nylon Standoff](https://amzn.to/2DjnIFd)
- [M3 Nylon Hex Standoff Assortment](https://amzn.to/2DqSATT)
- [Chemcast Black LED Acrylic](https://www.tapplastics.com/product/plastics/cut_to_size_plastic/black_led_sheet/668)

[Assembly Instructions](https://www.evilgeniuslabs.org/fibonacci256#assembly-instructions)

## Shipping policy

* Orders are normally shipped within one business day.
* Emails are sent with tracking numbers once orders ship.
* Orders ship from the US.
* Depending on the destination, orders normally arrive within a few days in the US, and up to several weeks internationally.

Returns and warranties:

* Returns are not accepted.
* If I make a mistake, just contact me, I will fix it.
* If mistakes are made assembling kits, I will provide assistance.

Customs and import duties:

* International orders may be subject to duties, taxes, import fees, etc.
* These fees are not included in the price of the products, or the order total.
* These fees are the sole responsibility of the buyer.
* These fees vary based on the products and destination country.
* For more information, please contact your local customs office.