Realistic LED Flickering Flame Effect for Arduino - 1 Line of code

In this video we show you how to use cheap LED lights to create a simple flicker effect! Use it for TIKI lights, Star Wars Panels and more!
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[@Alan_AB]

Great idea, but would be more useful for several LED's randomly flickering independently from each pin.
For a simple circuit like yours it is far easier and far cheaper to just grab the LED's from some LED candles and use them.

[@MakerDan55]

Very cool. Can you tell me what the 2 numbers in the function are actually doing?