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322 Scheda tecnica(PDF) 2 Page - Adafruit Industries

Il numero della parte 322
Spiegazioni elettronici  12mm Diffused Thin Digital RGB LED Pixels (Strand of 25) - WS2801
PDF  2 Pages
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Produttore elettronici  ADAFRUIT [Adafruit Industries]
Homepage  https://www.adafruit.com/
Logo ADAFRUIT - Adafruit Industries

322 Scheda tecnica(HTML) 2 Page - Adafruit Industries

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The pixels use 8mm diffused RGB LEDs, with a 120 degree beam width. The total max brightness of all
LEDs is about 1600mcd but with the light more evenly distributed & mixed than a clear LED. (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 25 pixels in series! Each strand has two JST SM 4-pin connectors so
you can connect multiple strands in a row, as many as you wish, just watch for how much current they
want. We now have LED pixel strands with the power wires (red & blue) spliced out so its really easy to
connect 5VDC in using a 2.1mm jack terminal adapter. We have a 5V/2A supply that should be able to
drive 2 or more strands and a 5V/10A supply that can drive up to 160 LEDs all lit up at once
If you want to connect to the strand (to wire it to power and a microcontroller), you could cut and solder to
the wires, but better yet just grab a 4-JST cable set - then check the LED modules to see which way is the
input (there's arrows showing the data direction)
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! https://github.com/adafruit/Adafruit-WS2801-Library http://www.ladyada.net/products/rgbledpixel/
Technical Details
o
12mm diameter (0.45") 38mm deep (1.5")
o
80mm / 3" apart on the strand
o
25 pieces per strand
o
New! These pixels use a WS2801 chip for full 24 bit color
o
5V power, 60mA maximum per pixel (LED on full white)
o
2-pin SPI-like protocol
o
WS2801 Datasheet for the chip inside each pixel https://cdn-shop.adafruit.com/datasheets/WS2801.pdf
o
Brightness: Red = 3.3 Lumens/300 mcd, Green = 10 Lumens/1000 mcd, Blue = 2.7 Lumens/300
mcd (mcd calculation based on full 120 degree beam)
                                Engineered in NYC Adafruit ® https://www.adafruit.com/product/322 5‐5‐17 



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