Adafruit
Adafruit NeoPixel Ring - RGB LED w/ Integrated Drivers - 12 pixel
Round and round they go! 12 ultra-bright smart RGB NeoPixels are arranged in a compact circle with a 37 mm (1.5″) outer diameter. Each LED is individually ad...
Round and round they go! 12 ultra-bright smart RGB NeoPixels are arranged in a compact circle with a 37 mm (1.5″) outer diameter. Each LED is individually addressable from a single microcontroller pin, delivering 24-bit colour with ~18 mA constant-current drive for consistent brightness regardless of voltage variation.
The rings are chainable — connect the output pin of one ring to the input pin of another to build larger displays. Also available in 16-pixel and 24-pixel RGB sizes, plus 12-pixel RGBW variants with a dedicated white channel.
Key Features
- 12 RGB LEDs – Individually addressable WS2812-compatible NeoPixels in a circular arrangement
- Compact Form Factor – 37 mm (1.5″) outer diameter, slim profile with no external resistors required
- 24-Bit Colour – 8-bit PWM per channel (R, G, B) for over 16 million colours
- Constant Current Drive – ~18 mA per LED for consistent colour even with voltage variation
- Single-Pin Control – One data line drives all 12 LEDs using the NeoPixel protocol
- Chainable – Connect output of one ring to input of the next for larger installations
Power Requirements
- Supply voltage: 5 V DC
- Maximum draw: ~60 mA per pixel (up to ~720 mA at full white for the entire ring)
Compatibility
- Works with real-time microcontrollers: Arduino (AVR, SAMD, nRF52), ESP32, ESP8266, Teensy, and more
- Requires 8 MHz or faster processor
- Supported by Adafruit's NeoPixel library (Arduino) and CircuitPython/MicroPython
neopixelmodule - Not compatible with Linux-based SBCs or interpreted platforms (e.g., Basic Stamp) for direct driving
Ideal For
- Wearable electronics and jewellery
- Status indicators and gauges
- Circular animations and colour-cycling effects
- IoT device feedback rings
- Cosplay and costume accents
Package Contents
- 1× Adafruit NeoPixel Ring – 12 RGB LEDs, assembled and tested
Resources
- NeoPixel Uberguide – Comprehensive guide covering wiring, libraries, and example code
Jargon buster
Plain-language definitions for the technical terms used above.
- AVR
- AVR is a family of 8-bit microcontrollers used in many classic Arduino-style boards. If a USB host library mentions AVR support, it suggests the examples or compatibility may be aimed at those older microcontroller boards.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- MicroPython
- A version of the Python programming language made to run on microcontrollers. It matters because it lets beginners write readable code to control LEDs, sensors, motors and displays without needing to start with lower-level languages.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
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