How to CONTROL NEOPIXEL with ARDUINO

In this tutorial i will you how to control individually addressable RGB LEDs or a WS2812B LED strip using Arduino

Hardware needed

1.Arduino

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2.WS2812 rgb leds 

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3.5volt 3A power supply

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WS2812 NeoPixel LED Strip Working

WS2812 LED strips are addressable and programmable Flexible LED strips which are very useful in creating the custom lighting effects. These LED Strips are powered by a 5050 RGB LED with a WS2812 LED driver inbuilt within it. Each LED consumes 60mA current and can be powered from a 5V DC supply. It has a single input data pin which can be fed from the digital pins of Microcontrollers.

 Depending on the intensity of the three individual Red, Green, and Blue LEDs we can create any color we want.

1. 16.8 million colors per pixel
2. Single-wire digital control
3. Operating Voltage: 5V DC
4. Current Requirement: 60mA per LED
5. Flexible LED structure
6. 5050 RGB LED with WS2812 driver

Circuit diagram

Connections

5v to supply 5v

Common Ground to  arduino and led

Datain  to any adigital pin

Install the fastled library

After downloading fastled library from the below link  

Open Arduino IDE and do the following:

Click on "Sketch" and then click "Include library"

Click on "add .zip library"

download fastled.h library from here

Programming the LED

#include

 // header file

#define NUM_LEDS 60

 // number of led present in your strip

#define DATA_PIN 6 

// digital pin of your arduino

Depending on your led strip type select appropriate void setup function

void setup() 

{

FastLED.addLeds(leds, NUM_LEDS);

}

Watch the video to  know more