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Dotstar panel not working when connected
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Dotstar panel not working when connected

by jessgingery on Wed Sep 11, 2019 12:25 am

Hi,

Im using 4 x Flexible Adafruit DotStar Matrix 16x16 parts and 2 of them are working perfectly when connected to a bluefruit.
Bluefruit.JPG
Bluefruit.JPG (326.33 KiB) Viewed 79 times


Since we only just plugged them all together to create a scrolling sentence, we have seen that 1 of the matrix 16 x 16 panels has an LED that lights up green permanently in the bottom right corner.
Faulty LED.JPG
Faulty LED.JPG (475.82 KiB) Viewed 79 times


Here is the youtube link: https://youtu.be/H9RI72PTj7c

The other panel is not lighting up at all when connected.
4 panels connected.JPG
4 panels connected.JPG (388.21 KiB) Viewed 79 times

We have swapped it out into different combinations and know for sure that there is something wrong with this particular panel.

jessgingery
 
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Re: Dotstar panel not working when connected

by dastels on Wed Sep 11, 2019 10:25 am

You should contact customer support: https://www.adafruit.com/support

dastels
 
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Re: Dotstar panel not working when connected

by adafruit_support_carter on Fri Sep 13, 2019 4:29 pm

Did you test the panels individually before chaining them together? If not, can you backup with your wiring and somehow do that now?

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Re: Dotstar panel not working when connected

by jessgingery on Sat Sep 14, 2019 1:43 pm

HI there,

I have wired each matrix panel to power via the bluefruit individually.
https://www.youtube.com/watch?v=qrnBK5FHoRY

All but three respond, the last one does not.
IMG_1882_closeup.jpg
IMG_1882_closeup.jpg (110.01 KiB) Viewed 33 times


Thanks for reading this. Let me know what you think.
Attachments
MATRIX TESTING.jpg
MATRIX TESTING.jpg (754.25 KiB) Viewed 33 times

jessgingery
 
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Re: Dotstar panel not working when connected

by adafruit_support_carter on Mon Sep 16, 2019 12:50 pm

Thanks. Good set of tests.

For the one panel with the green LED - does that show up even with initial power? So no data signal from the Feather, just power to the panel. And when you are running it with the Feather, does it ever change at all?

For the non-responding panel, can you post a photo of the backside. And please try a higher resolution photo so we can see if there are any obvious hardware issues.

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Please be positive and constructive with your questions and comments.