Adafruit
NeoPixel RGBW LED Strip - White PCB, 30 LED/m, 1m
· MPN: ADA2836
Add individually addressable red, green, blue and white pixels to costumes, signs, props and ambient lighting projects. Each NeoPixel contains separate RGB a...
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Add individually addressable red, green, blue and white pixels to costumes, signs, props and ambient lighting projects. Each NeoPixel contains separate RGB and white emitters, so you can create colourful effects as well as cleaner white highlights from the same flexible strip.
This version has a white PCB and white casing, with 30 LEDs per metre. The strip is made from flexible PCB material with weatherproof sheathing, and it can be cut at the marked cut-lines or joined to other strips if your power supply can handle the current.
NeoPixels use a timing-sensitive 800 KHz data protocol and need only one digital output pin for control. The PWM is handled inside each LED, so once the colour is set the strip continues driving the LEDs without constant updates from your microcontroller.
Adafruit provides NeoPixel library support for RGBW strips, along with tutorial material, wiring guidance, power calculations and example code for boards including Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, Trinket/Gemma, Arduino Due and Arduino Mega/ADK. Make sure your library supports RGBW NeoPixels; a plain RGB NeoPixel library will give incorrect results.
Specifications:
- LED density: 30 LED/m
- Strip length: 1m
- PCB colour: White
- Casing colour: White
- LED channels: Red, green, blue and white
- White LED: White LED with a yellow phosphor
- PWM precision: 8-bit PWM per channel
- Colour depth: 8 x 4 channels = 32-bit colour overall
- Data protocol: 800 KHz
- LED PWM rate: ~400 Hz
- LED package size: 5050-sized LEDs
- Microcontroller: Embedded microcontroller inside the LED
- Control method: Shift-registers chained up down the strip
- Required data pins: Only 1 digital output pin
- PCB material: Flexible PCB material
- Sheathing: Weatherproof sheathing
- Cut-line spacing: Every 0.65"/1.7cm
- Cut segment: 1 LED each
- Solder pads: 0.1" copper pads
- Required power supply: 5V DC
- Maximum voltage warning: Do not use higher than 6V
- Suggested supply for 1 metre: 5V/2A supply, depending on use
- Suggested supply for up to 4 metres: 5V/10A supply, depending on use
- Full reel quantity: 5 meters at a time
- Full reel connectors: Two connectors
- Cut piece quantity: Less than 5m
- Cut piece connector note: May or may not have a connector on it
For wiring, JST SM plug and receptacle cables are suggested, along with a suitable 2.1mm DC jack if you want to connect a wall adapter for power.
Jargon buster
Plain-language definitions for the technical terms used above.
- Colour depth
- Colour depth describes how many different colours a display can show. A 65K-colour display can show about 65,000 colours, which is useful for icons, graphs, and simple full-colour interfaces but is less detailed than modern phone or computer screens.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- 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.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- 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.
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