Adafruit NeoPixel Ring - RGB LED w/ Integrated Drivers - 16 pixel

Round and round they go! 16 ultra-bright smart RGB NeoPixels are arranged in a circle with a 44.5 mm (1.75″) 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 12-pixel and 24-pixel RGB sizes, plus 16-pixel RGBW variants with a dedicated white channel.

Key Features

• 16 RGB LEDs – Individually addressable WS2812-compatible NeoPixels in a circular arrangement
• Medium Form Factor – 44.5 mm (1.75″) 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 16 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 (4–7 V working range)
• Maximum draw: ~60 mA per pixel (up to ~960 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 neopixel module
• 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 – 16 RGB LEDs, assembled and tested

Resources

• NeoPixel Uberguide – Comprehensive guide covering wiring, libraries, and example code