Hey all I have a WS2812B RGB LED strip that I am wanting to use with an Arduino. The directions HERE state that it's best to use a Capacitor and register in order to have smooth operation.

So I went on eBay and bought a 600pcs 30Value 20pcs Each 1% 1/4W Metal Film Resistor Assortment Kit not knowing that the directions pointed to a kit that was titled Resistor Kit - 1/4W (500 total) Carbon Film 5%.

So, I hooked up the 1000µF Capacitor to the power line and grounded the other end (which works just fine) and also added a 470Ω resistor to the digital pin on the Arduino.

I added the needed code and uploaded it to the Arduino... and nothing happened. I fiddled around with it until I found the cause of the issue - its the resistor I was using. So I tried the 220Ω and it also would not allow the led strip to light up.

So I decided to take out the resistor all together and bingo, it worked just fine after doing so. Now my question to you all is - What is the equivalent of a 470Ω in the Metal Film 1% side since it seems they are using the carbon resistor for this project I am looking at? I really do not want to have to purchase another bag of resistors just so I can have some carbon film resistors - I'd rather use this if I can.

So any information/knowledge would be great! Thanks!


Relax. First off, the link does not necessarily point to a carbon assortment - the description does not say. What it does say is that the assortment replaces an earlier kit which did use carbon comps.

Regardless, for what you're doing there is no difference. The composition of the resistors has nothing to do with your problem.

And what is your problem? At a guess, you're reading the color codes wrong. I recommend you get a cheap mulitmeter (you can get them for less than $10 on eBay), and use it to check your resistor values.


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