user50490: I have an Arduino Uno, 12V WS2811 RGB LEDs (from Mokungit), a 5V power source, and DC power connector. I do not have a breadboard and hope I don't need one.
This is almost exactly what I need to follow this tutorial to build a Stranger Things wall. The LED strip listed shares the same name as the one I have, but the wiring is different. 
Here's a photo from the Instructables site:

However, the wires coming from my strip don't match up to the instructions, and I can't seem to figure out how to get these bad boys burning.




Thanks to anyone who can help me get started!

user28569: The signals are clear on the bulb pcb. Take a multimeter in continuity mode and probe to see which pins on the round connector is DI, GND and +12v.
Then connect DI to the arduino. +12v to the strip. GND from the Arduino, LED strip and your +12v source should all be conected together.

user6936: This image, from here, shows which pins are what:

Note the flat key next to the 12 V and GND pins. In addition:

the GND wire has a black broken line printed along it;
the data line is in the middle. 

If you trust the image then you should be able to wire them up correctly.

user61628: That picture is for a 5 Volt rgb led strip. You have to use a 12 Volt power supply for your led and power the uno with another 5volt source. A computer power supply would be great for supplying power both 5 Volt and 12 Volt.

50490: <p>I have an Arduino Uno, 12V WS2811 RGB LEDs (from Mokungit), a 5V power source, and DC power connector. I do not have a breadboard and hope I don't need one.</p>

<p>This is almost exactly what I need to follow <a href="https://www.instructables.com/id/Arduino-Based-Stranger-Things-Lights/" rel="nofollow noreferrer">this tutorial</a> to build a Stranger Things wall. The LED strip listed shares the same name as the one I have, but the wiring is different. </p>

<p>Here's a photo from the Instructables site:
<a href="https://i.stack.imgur.com/Vy9iB.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Vy9iB.jpg" alt="enter image description here"></a></p>

<p>However, the wires coming from my strip don't match up to the instructions, and I can't seem to figure out how to get these bad boys burning.</p>

<p><a href="https://i.stack.imgur.com/DOVEu.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DOVEu.jpg" alt="enter image description here"></a>
<a href="https://i.stack.imgur.com/ZDXQf.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZDXQf.jpg" alt="enter image description here"></a>
<a href="https://i.stack.imgur.com/o9Qub.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/o9Qub.jpg" alt="enter image description here"></a>
<a href="https://i.stack.imgur.com/inp05.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/inp05.jpg" alt="enter image description here"></a></p>

<p>Thanks to anyone who can help me get started!</p>
 28569: <p>The signals are clear on the bulb pcb. Take a multimeter in continuity mode and probe to see which pins on the round connector is DI, GND and +12v.</p>

<p>Then connect DI to the arduino. +12v to the strip. GND from the Arduino, LED strip and your +12v source should all be conected together.</p>
 6936: <p>This image, from <a href="http://MOKUNGIT%20WS2811%20Diffused%20Digital%20RGB%20LED%20Pixels%20Light%20Individually%20Addressable%20Round%20LED%20Pixels%20Module%2025.6ft%20DC12V%2012mm%20Waterproof%20IP68%20100pcs/set%20(Black)" rel="nofollow noreferrer">here</a>, shows which pins are what:</p>

<p><a href="https://i.stack.imgur.com/4fK25.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4fK25.jpg" alt="enter image description here"></a></p>

<p>Note the flat <em>key</em> next to the 12 V and GND pins. In addition:</p>

<ul>
<li>the GND wire has a black broken line printed along it;</li>
<li>the data line is in the middle. </li>
</ul>

<p>If you trust the image then you should be able to wire them up correctly.</p>
 61628: <p>That picture is for a 5 Volt rgb led strip. You have to use a 12 Volt power supply for your led and power the uno with another 5volt source. A computer power supply would be great for supplying power both 5 Volt and 12 Volt.</p>
