Concentric WS2812B RGB LED rings
compatible with NeoPixel Adafruit libraries
Ultra bright smart LEDs arranged in concentric rings.
The rings are chainable - connect the output pin of one to the input pin of another.
The NeoPixel compatible WS2812B LED rings controlled by a micro-controller, such as an Arduino, are a perfect combination for the creation of elegant LED lighting solutions.
Each LED ring PCB is held together by small, breakable PCB fibre glass bits that can be easily snapped apart if required.

Resources:
Connect WS2812 LED Ring to an ATTiny85 - https://www.make-it.ca/ws2812-neopixel-ring-to-attiny85/
LED Ring Clock With Arduino - https://www.instructables.com/LED-Ring-Clock-With-Arduino/
NeoPixel Multiple Ring Animation - https://create.arduino.cc/projecthub/ericBcreator/neopixel-multiple-ring-animation-33359b

The interface between the micro-controller and the rings requires only three connections; power, ground and signal are all that are necessary.
The power and ground solder pads on each ring need to be connected to each other to provide power to each of the rings.
Run a single wire from each 5V pad on each ring and attach it back to the micro-controller.
Follow the same process for the GND connection on each ring.
The signal wire should also include a series resistor, e.g., 470-ohm 1/4W to protect the micro-controller from stray voltages coming back on the signal pin.
The signal pin from the micro-controller connects to one side of the resistor, and the other end connects to the Data In (DI) solder pad of the first ring.
To attach to the next ring, a connection is established from the Data Out (DO) pin and connected to the DI pin on the next ring.
The DO to DI jumper is applied to each ring, e.g., from the 24-LED board to the 16-LED board, from the 16-LED board to the 12-LED board, from the 12-LED board to the 8-LED board and finally from the 8-LED board to the 1-LED board.
A separate power supply is recommended for the larger ring set because of the larger current draw.
(Ground connections must be common between the micro-controller and LED rings).

Specifications:
LED chip size        : 5050
LED chip model        : WS2812B
Input voltage        : 5V
Interface        : 5V, GND, DI, DO
Dimensions: (see listing photo)
37 LED Ring Set consists of 1+8+12+16 LED rings
61 LED Ring Set consists of 1+8+12+16+24 LED rings
93 LED Ring Set consists of 1+8+12+16+24+32 LED rings
148 LED Ring Set consists of 40+48+60 LED rings
204 LED Ring Set consists of 24+32+40+48+60 LED rings
241 LED Ring Set consists of 1+8+12+16+24+32+40+48+60 LED rings

Package includes:
1x LED Ring set as chosen
1x Set of header pins

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