SparkFun
SparkFun LuMini LED Ring - 1 Inch (20 x APA102-2020)
This is the one inch version of the SparkFun LuMini LED Ring, packed with 20 individually addressable LEDs, each capable of producing 16 million colors, i...
This is the one inch version of the SparkFun LuMini LED Ring, packed with 20 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 four detachable mounting points (two inside the ring and two 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.
Jargon buster
Plain-language definitions for the technical terms used above.
- 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.
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LuMini 1 Inch Ring Schematic
Schematic · 76.1 KB · Click any page to view full size
APA102-2020 LED Datasheet
Datasheet · 7.7 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 475.5 KB · Click any page to view full size
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