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LEDS / PIXELS / 30MM DOTS - 12V DIGITAL RGB LED PIXELS (STRAND OF 20)
DESCRIPTION
RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each round 'pixel
cluster' contains 3 RGB LEDs and a controller chip soldered to a PCB. The pixel is then encased
in a translucent white 'dot' to make it weatherproof. These are fairly large pixels but they are
easy to mount, with two plastic flanges. They're typically used to make outdoor signs.
Compared to our other LED dots, these are much bigger and much brighter, good for larger
scale installations.
The pixels are connected by a 4-conductor cable. +12VDC, ground, data and clock. Data is
shifted down from one pixel to the next so that you can easily cut the strand or attach more onto
the end.
Each dot is digitally controlled, with an internal 8-bit PWM LED driver (24-bit color for 16 million
different shades). The pixels must be clocked by a microcontroller, we have an example code
linked below that works on an Arduino, it should be simple to adapt it to any other
microcontroller.
The pixels use 3 x 5050 RGB LEDs, and the dot has full 180 degree color spread due to to the
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30mm Dots - 12V
Digital RGB LED Pixels
(Strand of 20) -
WS2801
PRODUCT ID: 1547
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DESCRIPTION
TECHNICAL DETAILS
translucent nature. All of the LEDs are controlled at once so you cannot have one pixel with the
three LEDs different colors. (Color control is per single dot 3-LED pixel only) The total max
brightness of all LEDs is about 4000mcd. (Please note: mcd ratings of LEDs are notoriously
inflated by most LED sellers, so be extra-skeptical when reviewing LED ratings!)
Sold by the strand, each strand has 20 pixels in series! Each strand has two JST SM 3-pin
connectors so you can connect multiple strands in a row, as many as you wish, just watch for
how much current they want. The two power wires are brought out separately to make wiring
easier, a 2.1mm terminal block adapter is handy here to attach a DC power supply. We have a
12V/5A supply that should be able to drive 2 or more strands (depending on current use). The
LEDs are constant-current driven so you'll have even colors through-out the strand as long as
you have a stable 12V supply
You can drive these with an Arduino using any two microcontroller digital pins, check this library
which also has example code to demonstrate the strands and be sure to read our very
detailed tutorial on usage!. Since these are nearly identical in how they work to t he 36mm
pixels, that guide will get you blinking
30mm Dots - 12V Digital RGB LED Pixels (Strand of 20) (7:56)
TECHNICAL DETAILS
MAY WE ALSO SUGGEST...
30mm diameter (1.4")
75mm / 3" apart on the strand
Total length: 208cm / 82"
20 pieces per strand
These pixels use a WS2801 chip for full 24 bit color, constant-current drive
12VDC power, 60mA maximum per pixel (LED on full white)
2-pin SPI-like protocol
WS2801 Datasheet for the chip inside each pixel
Brightness per pixel: 4000 mcd combined (we'll try to get a datasheet for the LEDs)
You can drive these with an Arduino using any two microcontroller digital pins, check this library
which also has example code to demonstrate the strands and be sure to read our very
detailed tutorial on usage!
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Female DC Power adapter -
2.1mm jack to screw
12V 5A switching power
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