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WS2812 Datasheet(PDF) 46 Page - Raspberry Pi Holdings PLC |
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WS2812 Datasheet(HTML) 46 Page - Raspberry Pi Holdings PLC |
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46 / 98 page  I need to power LOTS of NeoPixels and don’t have a power supply that large. Can I use several smaller ones? Maybe. There are benefits to using a single supply, and large power supplies are discussed below. “Non-optimal” doesn’t necessarily mean “pessimal” though, and we wouldn’t discourage anyone from using what resources they have. If you go this route, the key is to have all of the ground pins among the strips connected in common, but the +5V from each power supply should be connected only to one length of NeoPixels — those should not all be joined. Every power supply is a little different — not precisely 5 Volts — and this keeps some from back-feeding into others. © Adafruit Industries https://learn.adafruit.com/adafruit-neopixel-uberguide Page 49 of 101 |
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