ElecFreaks
8 RGB Rainbow LED Ring
The 8 RGB Rainbow LED Ring features 8 individually addressable RGB LEDs arranged in a compact circle. Each LED has a built-in driver chip with 18 mA constant...
The 8 RGB Rainbow LED Ring features 8 individually addressable RGB LEDs arranged in a compact circle. Each LED has a built-in driver chip with 18 mA constant-current drive, so brightness remains consistent regardless of voltage variations — no external resistors needed.
The ring is chainable, allowing you to connect multiple rings together using a single data line. Power the ring with 5V DC (4–7V range) and control it from any real-time microcontroller running at 8 MHz or faster, such as Arduino, micro:bit, or PIC.
Key Features
- 8 Addressable RGB LEDs – Individual colour control for each LED
- Chainable – Connect multiple rings via a single data line
- Constant-Current Drive – 18 mA per LED, no external resistors required
- Single-Wire Protocol – One microcontroller pin controls all LEDs
- Compact Form Factor – 32 mm outer diameter, 16 mm inner diameter
- 5V Operation – Works within 4–7V range
Ideal For
- Wearable electronics and LED jewellery
- Status indicators and notification rings
- Interactive art installations
- micro:bit and Arduino LED projects
Package Contents
- 1× 8 RGB Rainbow LED Ring
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.
- 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.
- 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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