Adafruit
30mm Dots - 12V Digital RGB LED Pixels (Strand of 20) [WS2801]
A strand of 20 digitally-controllable RGB LED pixel dots, each containing three 5050 RGB LEDs and a WS2801 controller chip. The pixels are encased in translu...
A strand of 20 digitally-controllable RGB LED pixel dots, each containing three 5050 RGB LEDs and a WS2801 controller chip. The pixels are encased in translucent white 30mm domes for weatherproof operation and even 180° colour spread, making them well-suited for outdoor signage and large-scale lighting installations.
Data is shifted from one pixel to the next via a clock and data line, so strands can be easily cut shorter or chained together. Each pixel is individually addressable with 24-bit colour (8-bit PWM per channel) and constant-current LED driving ensures even colour throughout the strand.
Key Features
- WS2801 Controller – 24-bit colour (16 million shades) per pixel
- 3× 5050 RGB LEDs Per Dot – ~4000 mcd total brightness per pixel
- Weatherproof Enclosure – Translucent white dome with mounting flanges
- Chainable – JST SM 3-pin connectors to link multiple strands
- Constant-Current Driven – Even colour output across the strand
- Two-Wire Control – Clock + data, works with any two digital pins on a microcontroller
Specifications
- Operating Voltage – 12V DC
- Pixels Per Strand – 20
- LEDs Per Pixel – 3× 5050 RGB (controlled as one unit)
- Colour Depth – 24-bit (8-bit per channel)
- Pixel Diameter – 30mm
- Connector – JST SM 3-pin (data/clock) + separate power wires
Ideal For
- Outdoor LED signage and large-scale installations
- Architectural and decorative lighting
- Arduino-controlled light shows and animations
Package Contents
- 1× Strand of 20 WS2801 RGB LED Pixel Dots (30mm)
Resources
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.
- 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.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- 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, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
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Related Tutorials
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