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Logic level refers to the input and output voltage levels of digital logic, which is often 3.3 V or 5 V.

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Raspberry Pi with 74HC14 connecting to LED strip (WS2812B)

This might be a stupid question, but I can't seem to figure out how to convert 3.3V to 5V with the 74HC14. I have a power source which can supply 5V (see the power adapter at the left), and use it to …
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Raspberry Pi with 74HC14 connecting to LED strip (WS2812B)

Thanks to @Erlkoenig I stumbled upon the 74HCT125N, which I can confirm works very well. Down below is an updated schematic:
Mark D's user avatar
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