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WS2812 Datasheet(PDF) 62 Page - Raspberry Pi Holdings PLC

Part # WS2812
Description  Created by Phillip Burgess
PDF  98 Pages
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Manufacturer  RASPBERRY-PI [Raspberry Pi Holdings PLC]
Direct Link  https://www.raspberrypi.com/
Logo RASPBERRY-PI - Raspberry Pi Holdings PLC

WS2812 Datasheet(HTML) 62 Page - Raspberry Pi Holdings PLC

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Adafruit_NeoPixel strip_a = Adafruit_NeoPixel(16, 5);
Adafruit_NeoPixel strip_b = Adafruit_NeoPixel(16, 6);
The above declares two distinct NeoPixel objects, one each on pins 5 and 6, each containing 16 pixels and using the
implied default type (NEO_KHZ800 + NEO_GRB).
Can I connect multiple NeoPixel strips to the same Arduino pin?
In many cases, yes. All the strips will then show exactly the same thing. This only works up to a point though…four
strips on a single pin is a good and reliable number. If you need more than that, individual NeoPixels can be used as
buffers to “fan out” to more strips: connect one Arduino pin to the inputs of four separate NeoPixels, then connect
each pixels’ output to the inputs of four strips (or fewer, if you don’t need quite that many). If the strips are 10 pixels
long, declare the NeoPixel object as having 11 pixels. The extra “buffer” pixels will be at position #0 — just leave
them turned off — and the strips then run from positions 1 through 10.
© Adafruit Industries
https://learn.adafruit.com/adafruit-neopixel-uberguide
Page 65 of 101



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