Page 1 of 1
Forum

Welcome to the Tweaking4All community forums!
When participating, please keep the Forum Rules in mind!

Topics for particular software or systems: Start your topic link with the name of the application or system.
For example “MacOS X – Your question“, or “MS Word – Your Tip or Trick“.

Please note that switching to another language when reading a post will not bring you to the same post, in Dutch, as there is no translation for that post!




how to create a sta...
 
Share:
Notifications
Clear all

[Solved] how to create a static color show using arduino for ws2812b led strip?

4 Posts
2 Users
0 Likes
6,539 Views
(@askfriends)
New Member
Joined: 8 years ago
Posts: 2
Topic starter  

Hello;

i want to create a static color show for my ws2812b led strip, lets suppose i want only to show red color behind my tv, so how to make sketch? please someone write and share.

thanks


   
ReplyQuote
 Hans
(@hans)
Famed Member Admin
Joined: 11 years ago
Posts: 2663
 

Hi AskFriends,

(see also the Arduino LED effect article)

When using the FastLED library, you could do something like this:

#include "FastLED.h"
#define NUM_LEDS 60 // Number of LEDs in your ELD strip
CRGB leds[NUM_LEDS];
#define PIN 6 // Arduino pin used for LED strip
void setup()
{
  FastLED.addLeds<WS2811, PIN, GRB>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
}
void loop() { 
  for(int i = 0; i < NUM_LEDS; i++ ) {
    leds[Pixel].r = 0x00; // Red
    leds[Pixel].g = 0x00; // Green
    leds[Pixel].b = 0xFF; // Blue
  }
FastLED.show();
}

For AdaFruit NeoPixel library something like this:

#include 
#define PIN 6  // Arduino PIN
#define NUM_LEDS 60 // Number of LEDs in strip
// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, PIN, NEO_GRB + NEO_KHZ800);
void setup() {
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
}
void loop() { 
  for(int i = 0; i < NUM_LEDS; i++ ) {
    strip.setPixelColor(Pixel, strip.Color(0, 0, 0xff));
  }
  strip.show();
}

(Note: updated code, replace red, green and blue with numbers)

Hope this helps 


   
ReplyQuote
(@askfriends)
New Member
Joined: 8 years ago
Posts: 2
Topic starter  

THANK YOU SO MUCH.


   
ReplyQuote
 Hans
(@hans)
Famed Member Admin
Joined: 11 years ago
Posts: 2663
 

No problem - hope it was you were looking for 


   
ReplyQuote

Like what you see and you'd like to help out? 

The best way to help is of course by assisting others with their questions here in the forum, but you can also help us out in other ways:

- Do your shopping at Amazon, it will not cost you anything extra but may generate a small commission for us,
- send a cup of coffee through PayPal ($5, $10, $20, or custom amount),
- become a Patreon,
- donate BitCoin (BTC), or BitCoinCash (BCH).

Share: