256 WS2812B LEDs tightly packed into Fermat's Spiral & protected by Skulls
What is it?
256 WS2812B LEDs arranged in a beautiful parabolic Spiral.
You get the assembled board, 2 sets of right-angle 3-pin headers, and a personal, hand-written thank you note.
Note that you'll…
256 WS2812B LEDs arranged in a beautiful parabolic Spiral.
You get the assembled board, 2 sets of right-angle 3-pin headers, and a personal, hand-written thank you note.
Note that you'll need some Microcontroller to control these LEDs. They are compatible with the Arduino Uno, Arduino Nano, Raspberry Pi, ESP32, and many others.
Specifications
256 WS2812B-B RGB LEDs
256 100nF decoupling capacitors
2 sets of 3-pin header connectors with standard 0.1" spacing:
5V, DIN, GND
5V, DOUT, GND
Can be daisy-chained
2 additional power pads (GND, 5V)
172mm board diameter, 102 grams
3xM3 mounting holes (81.5mm from center)
Hypnotic skull spiral decoration 💀
Power consumption
Test condition
Current
Power
Standby (all LEDs off)
0.16A
0.8W
Maximum brightness, rainbow colors
3.75A
18.75W
Maximum brightness, all LEDs white
9.21A
46W
Note: Running the LEDs at maximum brightness for long time (more than a few minutes) will cause the board to heat up and can damage the LEDs. It's recommended to keep the average current at 1.5A at most.
Why did I make it?
Inspired by Jason Coon's exciting Fibonacci256, I decided to challenge myself and create my own Fermat Spiral LED disk.
I created a pair of Python scripts to automate the schematic creation and the PCB layout, as well as some of the routing. The scripts as well as the board design files are available for free on GitHub.
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