Hi all! I'm new here. I've been learning a lot from forum posts, blogs, etc. but I'm finally stumped on something. I have an LED strip I am trying to repurpose. I don't have any information on it as I didn't purchase it. I can't find any model info, and it doesn't match any pictures I've seen so far. I tried running a fastLED example sketch called ColorPalette, but didn't get the results I was hoping for when I ran it for the WS2811, so I thought I would check with the experts. Can anyone ID this LED strip? Or, more importantly, can anyone tell me how to run it on an Arduino Uno? Thanks in advance!
Doesn't tell us either what you were hoping for, or what you got.
It's a Neopixel strip with separate clock (label CK) and data (label D) lines. That should help narrow it down a bit. Can you read the markings on the IC shown?
How did you wire it for test (diagram, please, not words...).
Looks like an LPD8806 strip.
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some other 4 wire types are listed here:
https://github.com/FastLED/FastLED/wiki/Chipset-reference
The sketch was supposed to cycle the lights through multiple color/lighting patterns. This did not happen. Here is a quick drawing of my wiring, I hope it helps.
I set the pin to 6 in the sketch. I tried multiple iterations:
yellow to 6
blue to 6
blue to 6, yellow to ground
yellow to 6, blue to ground
None of these produced the lighting patterns that were expected from the sketch. Some only lit a few LEDs and caused them to flicker rapidly, one caused them all to light at full, no change, no different colors.
The IC says:
LPD8806S
15115
Unlike the WS2811 & 2812 you need clock and data connections, plus power and ground. The extra clock connection makes the code simpler/easier (although if you are using a library you may not care).
The LED strip and Arduino need to share a common ground. You can use a separate +5V supply as long as it shares the common ground.
And you'll need the correct library (or code) for the 8806 chip.
Yeah, you can't just ground the clock pin and expect it to work.
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Did you Google that? Anyway it looks like you're hot on the trail...
I didn't even think to read it until you asked!
From this, plus the other replies, I was able to add the LPD8806 library, and the test sketches are working WAY better!
Thank you all for your help! I feel dumb for not thinking the chip info could help me here, but I'm glad you guys knew it right away. 
I'm usually better than grounding random wires, I swear... 
Sometimes it is what you must do, fortunately not often...
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