> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# PlanetX LED - Rainbow

**Type:** Product page · **SKU:** EF05015 · **Brand:** [Elecfreaks](https://core-electronics.com.au/brands/elecfreaks-australia)
**Page:** https://core-electronics.com.au/elecfreaks-plant-x-led-rainbow-ring.html ([markdown](https://core-electronics.com.au/elecfreaks-plant-x-led-rainbow-ring.html.md))

Add vibrant, addressable lighting effects to micro:bit projects using an 8-pixel WS2812 LED module with digital control for dynamic custom colour patterns.

## Pricing

- **Price:** $16.49 (inc GST) — $14.99 AUD, exc GST
- **Quantity discounts:** 10+ $14.39 (exc GST) · 25+ $13.95 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 20 and Aug 24.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=EF05015:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/EF05015:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The PlanetX Rainbow LED transforms your projects by adding vibrant, customisable lighting effects. Ideal for turning a simple car model into a colourful police car or enhancing any micro:bit-based design with bright, dynamic illumination.

Designed to work seamlessly with the PlanetX system, this LED module is perfect for educational projects, prototyping, and maker applications where visual feedback or decorative lighting is needed.

### Technical Specifications

 | **Connection** | RJ11 4P4C |
|---|---|
| **Power Supply** | 3.3V |
| **Signal Type** | Digital input |
| **Core IC** | WS2812 |
| **Number of LEDs** | 8 |

### How to Use/Installation

1. Connect the Rainbow LED to the Nezha expansion board using an RJ11 cable (required, sold separately).
2. Power your micro:bit or compatible controller with a 3.3V supply.
3. Program the micro:bit to control the LEDs for colourful effects, using the PlanetX libraries and examples available in the Elecfreaks wiki.
4. Experiment with custom colour functions to create dynamic lighting patterns suited to your project.
 
### Compatibility

- Micro:bit with PlanetX compatible connectors
- Nezha expansion board (required)
- RJ11 4P4C cables (required)
- Compatible with PlanetX sensor ecosystem
- Works with programming environments that support WS2812 LED control
 
### Additional Resources

- [Elecfreaks PlanetX Rainbow LED Wiki and Educational Projects](https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05015)
- [Rainbow LED tutorial and code examples](https://www.elecfreaks.com/learn-en/microbitplanetX/Plant_X_EF05015.html)
 
### What’s Included

- 1 x PlanetX Rainbow LED module

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/E/F/EF05015-2.jpg)