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SparkFun LuMini LED Ring - 2 Inch (40 x APA102-2020)

This is the two inch version of the SparkFun LuMini LED Ring, packed with 40 individually addressable LEDs, each capable of producing 16 million colors, it provides you with a lot of color for just about any reason! LuMini is a miniaturized version of our Lumenati LED line but instead of utilizing 5mm by 5mm APA102 LEDs (APA102-5050), LuMini uses a 2mm by 2mm package (APA102-2020). This allows for incredibly tight pixel densities, and thus, a more continuous ring of color for you to use!

The LuMini LED Ring is powered and controlled using a few solder pads on the back of each board. These pads include 5V and ground, a set of pads for data and clock input, and another set for data and clock output. Since the ring acts like a string of LEDs, you'll find multiple numbers silked onto the back of the board that correspond to the LED number in the above. The last handy feature we've equipped the LuMini LED Ring with is eight detachable mounting points (four inside the ring and four outside) that can be used to secure your ring to a surface/project or be broken off to make more complex designs.

Note: In larger installations you may need to add a decoupling capacitor between power and ground to prevent voltage dips when turning on a whole bunch of LED’s simultaneously. We recommend using a 4.7µF capacitor which we sell in strips of 10.

  • 2in Diameter
  • 40x APA102-2020 LEDs
  • 8x Detachable Mounting Points
  • Optional Capacitor Space
  • Daisy-Chainable

SparkFun LuMini LED Ring - 2 Inch (40 x APA102-2020) Product Help and Resources

LuMini Ring Hookup Guide

January 17, 2019

The LuMini Rings (APA102-2020) are the highest resolution LED rings available.

LumiDrive Hookup Guide

January 17, 2019

The LumiDrive LED Driver is SparkFun’s foray into all things Python on micro-controllers. With the SparkFun LumiDrive you will be able to control and personalize a whole strand of APA102s directly from the board itself.

SparkFun ESP32 DMX to LED Shield

March 28, 2019

Learn how to utilize your DMX to LED Shield in a variety of different ways.

APA102 Addressable LED Hookup Guide

October 8, 2019

Connect, power, and control your APA102 addressable LED strip!

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

3 Soldering

Skill Level: Competent - You will encounter surface mount components and basic SMD soldering techniques are required.
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Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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