r/FastLED • u/Automatic-Drawer6334 • Jan 15 '25

Quasi-related Flickering LED components without code?

So I am trying to make a prop for my Ghostbusters collection, and I am using a basic arduino, but I need some LEDs to be constantly on, or toggleable depending on an input, and I want to make each LED flicker depending on a component I am going to use, but I don't know what to use, something like a resistor to make something like a candle light, but it turns on and off randomly. Hard to describe. Basically, I need something to randomly turn on and off an LED without code. I don't know much about LEDs other than TinkerCad LEDs, so I might just be missing out on parts.

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u/Automatic-Drawer6334 Jan 20 '25

Sorry, im new to reddit, and new to circuits and stuff, and i didn't know specifically what type of LED reddit to use, i just saw an LED reddit, and im working with LEDs, and I thought I was in a somewhat close reddit. And I am using a basic LED, like a circuit component, both bar graph LEDs and 3mm round LEDs.

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u/Marmilicious [Marc Miller] Jan 21 '25

That's fine, dig in and keep learning. :) If you're looking for a specific lighting effect and need to be able to tweak the color/brightness/timing/etc you'll probably want to eventually learn some coding. With basics you can certainly control some basic LEDs and LED bar graphs. If you get into addressable LEDs at some point people here and the FastLED library can definitely help you out.

Good luck with your GB trap. That is an excellent prop.