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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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WS2812 데이터시트(PDF) 42 Page - Raspberry Pi Holdings PLC |
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WS2812 데이터시트(HTML) 42 Page - Raspberry Pi Holdings PLC |
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42 / 98 page  For many wearable projects we recommend a lithium- polymer battery (http://adafru.it/328). These deliver 3.7 Volts — perfect for directly feeding low-power microcontrollers such as the Adafruit Flora, yet enough voltage to run a short length of NeoPixels. Three alkaline cells (such as AA batteries) can be installed in a battery holder (http://adafru.it/771) to provide 4.5 Volts. Though larger and heaver than the fancy lithium-polymer pack, they’re inexpensive and readily available. Four nickel-metal hydride (NiMH) rechargeable cells can similarly be used in a 4-cell battery holder (http://adafru.it/830) to provide 4.8 Volts. Make sure you only use NiMH cells in this configuration. Four alkaline cells (the disposable type) will output 6V total — that’s too high for some NeoPixels, and definitely too much for the microcontroller! Battery-operated LED project planning is discussed in greater detail in Battery Power for LED Pixels and Strips (https://adafru.it/cDU). © Adafruit Industries https://learn.adafruit.com/adafruit-neopixel-uberguide Page 45 of 101 |
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