Power needed for 60 WS2812B RGB LEDs (1m)

Other Hardware LEDs and Multiplexing
1

Hi guys,
I'd like to control a 1m WS2812b led strip (with 60 leds) for my PC case using an Arduino Nano (ATmega 328P). Now, I didn't understand exactly how to properly power all those LEDs using a normal 5V pin and a digital pin, can you help me?
Thanks :slight_smile:

2

What is a "normal 5v pin"?

I assume you'll power Arduino and LEDs from the computer's psu?

3

exactly

4

5v from psu to LEDs, and 5v from psu to Nano. Grounds connected. Data to Nano.
What's the confusion?

5

60 LEDs at 60mA each is 3.6 Amps.

So your power supply needs to be able to supply that on top of what it is already supplying.

6

He'll be fine. Even if LED strips drew that full figure, it'd be a 20 watt load tops which even the scrimpiest Dell can spare.

7

Directly from the PSU, yes. But I hope TS doesn't try to do this via USB :slight_smile: