ORDER #1024690-5082926199

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Sclafani
 
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ORDER #1024690-5082926199

Post by Sclafani »

Hello all,

Order #: 1024690-5082926199
Date Ordered: 2/22/2016
Product: Adafruit NeoPixel Digital RGB LED Strip - Black 60 LED - BLACK PID: 1461

I placed an order for 2m of RGB neopixel strip. I attempted to use this by connecting to a 5V power with 6.3V capacitor as advised (tried w/out capacitor as well). Connected data to UNO R3 to run teststrip in neopixel library, as I have on other strips purchased, to confirm it is working before proceeding with a project. I have not even unrolled the strip from the reel. Maybe every ~15-20 LEDs light up in a sort of blue/green hue. Tried other programs, other UNO, etc. the strip doesn't respond. I've used another strip with out exception in the same exact layout.

Ideally I would like to return this product for an exchange. If cross shipping isn't an option I'll just re-order once I receive details on how to return. Please advise how to proceed.

Thanks

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Franklin97355
 
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Re: ORDER #1024690-5082926199

Post by Franklin97355 »

Can you post pictures of the end of the strip you are connecting to and the connections to the Uno? It will help.

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Attached you will find the pictures of how it is connected to the UNO. The data pin is connected to pin #10 and in the electrical tape (between the pin on the UNO & connecting to the white data wire on the strip) is the following:

Through-Hole Resistors - 47K ohm 5% 1/4W - Pack of 25 PID: 2786

This product was purchased in the same order #.

I have already tried using another UNO and resistor. I briefly attempted to connect the 5V +/- wires to a power supply with a capacitor, however the power wires on the strip and the strip itself began to get hot. It seems like a short somewhere in the strip. Again maybe 2-3 LEDs displayed a blue-green color. I do not feel comfortable leaving it running to attempt taking a picture.

Let me know if you have any other questions and what else I can do to facilitate my request.
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Franklin97355
 
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Re: ORDER #1024690-5082926199

Post by Franklin97355 »

Take the twisted wire on the left and insert it under the screw to make better contact. Did you change your code to use pin 10?

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Wire snipped, stripped, and inserted under screw tightly. No difference noted.

Changed code to be pin#10 & # of LEDs to be 120, tried various other codes from the library as well. Tried to "colorwipe" to various solid colors as well. I can post the code, not sure if that will help as it's just the strandtest.

EDIT: I do not currently have access to another strip. I do however have a Neopixel stick that I can show working on the same UNO & library. I know these use different power sources and it doesn't help in that regard.

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adafruit2
 
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Re: ORDER #1024690-5082926199

Post by adafruit2 »

hey rather than a 47K resistor between the data pin and the strip, try a ~470 *ohm* resistor, (100 ohm to 1000 ohm)
is it the same LED thats not lighting each test/time?

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Hey, thanks for your response.

It shouldn't be a problem attempting to use a smaller resistor. I have some 1000 ohm and will attempt later tonight. However, another strip I purchased a month ago worked completely fine with 47k ohm.

I'll clarify on the LED light ups. What we're looking at is all LEDs are off/black except for a select few that are not even displaying the pattern/color I am asking via the UNO. Rather, those few that decide to show color are just a constant blue/green hue.

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adafruit2
 
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Re: ORDER #1024690-5082926199

Post by adafruit2 »

oh so none of them are working right - ok yah that points to a wiring issue, the resistor could be part of it!

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Yes, this is how it feels to me except I feel it lies within the strip itself. I've used this exact set up before without issue on another strip.

It seems like the best option to me is to go ahead and just order another strip and show that this particular strip is not functioning correctly. In the exact same layout as I expect a new one to. It takes 1 business day to reach my place after leaving adafruit.

Could you confirm this would satisfy your requirements to issue a return?

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Franklin97355
 
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Re: ORDER #1024690-5082926199

Post by Franklin97355 »

Yes, if the new strip worked with your setup and the one you have now does not we can get you another strip or a refund.

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Thanks for the quick response Franklin.

I went ahead and ordered the exact same product and 2 meters.

As a reference
Your Order Number is: 1033369-3296362950
Will update once I receive shipment and am able to show the comparison.

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adafruit2
 
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Re: ORDER #1024690-5082926199

Post by adafruit2 »

also of course make sure you're connecting to the DIN side

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Sclafani
 
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Re: ORDER #1024690-5082926199

Post by Sclafani »

Sorry for the delay. Had to work last weekend and this week has been long as well.

Attached you will find two photos. One of the aforementioned strip lighting only select LEDs, while the new one I ordered works completely fine. Both are in the exact same setup and there is no difference other than the strips.
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adafruit2
 
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Re: ORDER #1024690-5082926199

Post by adafruit2 »

ok well, we can't see the actual wiring but if you're certain its the same, email support@adafruit for a refund on the original strip

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