Adafruit
NeoPixel Nano 2020 RGB LEDs - 10-pack - WS2812B
These incredibly small surface-mount LEDs are an easy way to add a lot of very tiny (but bright!) colorful dots to your project. They are just mind-bogg...
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These incredibly small surface-mount LEDs are an easy way to add a lot of very tiny (but bright!) colorful dots to your project. They are just mind-bogglingly small - 2mm square. As they are pretty darn tiny, they might be a bit difficult to hand solder. SMT techniques with solder paste and hot air will work best here.
These Nano (2mm x 2mm) RGB LEDs are one third the size of mini 3535-sized NeoPixels and a sixth of the size of standard 5050mm NeoPixels you may be used to seeing. They're the most compact way possible to integrate multiple bright LEDs to a design. The driver chip is inside the LED and has ~12mA constant current drive, so the color will be very consistent even if the voltage varies, and no external choke resistors are required making your design minimal. Power the whole thing with 5VDC, and you're ready to rock.
There are three LEDs inside, red green and blue. The RGB LEDs are controlled by a tiny chip that takes a 24-bit color level via the clock and data in and then does all the PWM control for you. So you just 'set' the color data once. Like any NeoPixels you can chain them together, the output of one leading into the input of another for near-infinitely long strips.
Comes in a strip of 10 pieces. If you order more than one strip, it will come as multiple strips of 10, not one long strip.
Please note this is a surface mount part! It is possible to solder thin wires to the pads but it's designed for use on a SMD PCB. If you are not comfortable with hand-soldering SMD parts, check out our other RGB LEDs such as the thru-hole ones or in pixels/strips.
Our detailed NeoPixel Uberguide has everything you need to use NeoPixels in any shape and size. Including ready-to-go library & example code for the Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, Trinket/Gemma, Arduino Due & Arduino Mega/ADK (all versions).
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
- SMD
- SMD means surface-mount device, a component style designed to be soldered directly onto the surface of a circuit board rather than through holes. SMD parts are compact and mounted flat on the board, which suits smaller and mass-produced designs.
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