title: Control "ws2811" addressable rgb led strip with esp32
body: <p>I have bought an addressable RGB Led Strip from <a href="https://www.banggood.com/4M-WS2811-IC-SMD5050-Dream-Color-RGB-Non-Waterproof-LED-Strip-Light-Individual-Addressable-DC12V-p-1141631.html?rmmds=search&amp;ID=224&amp;cur_warehouse=CN" rel="nofollow noreferrer">banggood</a>. It was titled as an ws2811 RGB Led Strip. But I only have found ws2811 RGB Leds which aren't Strip, but <a href="https://www.banggood.com/de/5M-WS2811-RGB-IP68-Full-Color-50PCS-Bulbs-LED-Pixel-Module-Strip-Light-with-3keys-Controller-DC5V-p-1346213.html?gmcCountry=CH&amp;currency=CHF&amp;cur_warehouse=CN&amp;createTmp=1&amp;utm_source=googleshopping&amp;utm_medium=cpc_bgs&amp;utm_content=xibei&amp;utm_campaign=xibei-pla-CH-rm-all-0909-pc-20sc&amp;ad_id=462865761528&amp;gclid=Cj0KCQjwt4X8BRCPARIsABmcnOovuTZltuIs__edPZmfMGpqRPUm-4ez_MRQS-oRG7x0BTqFQlsLCicaAtK0EALw_wcB" rel="nofollow noreferrer">LEDs connected with some wire</a>.  I have some doubt that these are ws2811 LEDs. I think they are ws2812 LEDs titled as ws2811s. Now I try to control them with my ESP32 with the <a href="https://github.com/FastLED/FastLED" rel="nofollow noreferrer">FastLED</a> library but it does not want to work...</p>
  <p>Here is my code:</p>
  <pre><code>#include &lt;FastLED.h&gt;
  #define LED_PIN     27
  #define LED_COUNT    1
  CRGB leds[LED_COUNT];
  
  void setup() {
    FastLED.addLeds&lt;WS2812, LED_PIN, RGB&gt;(leds, LED_COUNT);
  }
  
  void loop() {
    leds[0] = CRGB(255, 0, 0);
    FastLED.show();
  }
  </code></pre>
  <p>Here is my wiring:
  <img src="https://i.stack.imgur.com/ybzBo.png" alt="My Wiring. Sorry for the catastrophic drawing..." /></p>
  <p>My problem is that it does not want to work!</p>
  <p>Has anyone an idea why?
  Thanks a lot!</p>