Hello, I have twelve DotStar High Density 8x8 Grid 's chained up. I just got these, they are brand new.
The 11th one seems to have a dead pixel (see attached picture).
Calling pixels.fill(color) colors all pixels, leaving the one dead.
And when I attempt to target the pixel directly I can't address it:
pixels[694] = (255,0,0) # selects pixel right before it
pixels[695] = (255,0,0) # selects pixel right after it
Is this an issue with having so many chained, or do I have a faulty matrix?
Dead pixel in 8x8 dotstar matrix
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- j__t
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Dead pixel in 8x8 dotstar matrix
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- adafruit_support_carter
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Re: Dead pixel in 8x8 dotstar matrix
Would it be possible to remove that one from the chain so it could be tested stand alone?
- j__t
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Re: Dead pixel in 8x8 dotstar matrix
It will take a little craftiness but won't be any more difficult than replacing it. Will give it shot and report back.
Thank you!
Thank you!
- j__t
- Posts: 8
- Joined: Sat Jan 07, 2023 4:38 pm
Re: Dead pixel in 8x8 dotstar matrix
Also, just curious - can this be a result of soldering / wiring? Or is it usually an issue with the matrix
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Re: Dead pixel in 8x8 dotstar matrix
The behavior is generally indicating a potential issue with the PCB, not the wiring. But it's worth testing the board in isolation to verify.
- j__t
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Re: Dead pixel in 8x8 dotstar matrix
Isolated, it does seem to be the matrix
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- adafruit_support_carter
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Re: Dead pixel in 8x8 dotstar matrix
OK, thanks for trying. Let's just replace it. Test the replacement before installing in your project.
Send an email to [email protected] with a link to this thread and your order number and they can send your a replacement 8x8 DotStar Matrix.
Send an email to [email protected] with a link to this thread and your order number and they can send your a replacement 8x8 DotStar Matrix.
- j__t
- Posts: 8
- Joined: Sat Jan 07, 2023 4:38 pm
Re: Dead pixel in 8x8 dotstar matrix
🙏
will do thank you
will do thank you
- j__t
- Posts: 8
- Joined: Sat Jan 07, 2023 4:38 pm
Re: Dead pixel in 8x8 dotstar matrix
was fixed with replacement matrix, thank you
Please be positive and constructive with your questions and comments.