Neopixel LED-strip shuts off when reading color using TCS347

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shvoldum
 
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Neopixel LED-strip shuts off when reading color using TCS347

Post by shvoldum »

A weird problem appeared out of the blue with a project we are working on. Basically the project consists of an arduino, some Neopixel LED-strips and a TCS34725 color sensor. The code is set up in a way that the color sensor picks up color and then sends this of to the LED-strips. Everything was working fine until all of a sudden the LED-strips shuts off when trying to pick up colors - everything appears to be fine until this is done. We have tested the code and all the hardware extensively before this without any flaws, and also have a second setup that is exactly the same which works fine.

The problem really came from nowhere, and we're a bit stumped as to what to look for next.. Any input?

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Re: Neopixel LED-strip shuts off when reading color using TC

Post by adafruit_support_bill »

If you have a second system with the same code running fine, then the problem is in the hardware or connections. Please post photos showing your soldering and connections.

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Re: Neopixel LED-strip shuts off when reading color using TC

Post by shvoldum »

Well, the thing is that we shipped it to a third party and hence don't have it at our office anymore.. As mentioned, everything was working fine when testing it, but when it arrived one of the setups was acting up. We've tried to instruct the recipients in how to check for faults, but we've mainly focused on the power-supply (which is a rechargeable powerbank).

We were hoping that someone had experience with similar issues and had any tips on what to look for..

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Re: Neopixel LED-strip shuts off when reading color using TC

Post by adafruit_support_bill »

everything was working fine when testing it, but when it arrived one of the setups was acting up
That would point to an intermittent connection - possibly a cold solder joint. This guide has some tips on identifying and fixing those: http://learn.adafruit.com/adafruit-guid ... n-problems

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Re: Neopixel LED-strip shuts off when reading color using TC

Post by shvoldum »

Thanks for your reply - the recipient inspected the two setups and found that the signal-wire from the Arduino to the LED-strip had come loose. Hopefully he will be able to fix this issue, after which everything should work again (fingers crossed!).

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