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64x32 RGB LED Matrix - 5mm pitch not work...
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64x32 RGB LED Matrix - 5mm pitch not work...

by ogaworks on Sat Feb 09, 2019 9:40 pm

I got 64x32 RGB LED Matrix - 5mm pitch.

スクリーンショット 2019-02-10 10.20.45.png
スクリーンショット 2019-02-10 10.20.45.png (139.39 KiB) Viewed 101 times


Sometimes it works, sometimes it does not work.

https://youtu.be/63yF3Q-fA8U

Even if I changed the power line or raspberry Pi, it was the same.
It seems that poor contact of power supply part of LED matrix panel?

Please tell me how to do it.

Regards,

Nori
Attachments
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IMG_5826.JPG (157.72 KiB) Viewed 101 times

ogaworks
 
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Re: 64x32 RGB LED Matrix - 5mm pitch not work...

by adafruit_support_carter on Fri Feb 15, 2019 10:54 pm

In that video, are you pressing the power connector on the back to create the issue?

It looks like it could be a signal connection issue also. I think I saw a matrix HAT and a ribbon cable there in the video?
video.jpg
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Re: 64x32 RGB LED Matrix - 5mm pitch not work...

by ogaworks on Fri Feb 15, 2019 11:13 pm

Yes. It seems that connection to the panel is lost as soon as the power connector on the back moves a little.
Do I need to upload other videos and photos?

ogaworks
 
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Re: 64x32 RGB LED Matrix - 5mm pitch not work...

by ogaworks on Fri Feb 15, 2019 11:26 pm

It seems that the power supply is lost when the power connector on the back moves just a little.

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Re: 64x32 RGB LED Matrix - 5mm pitch not work...

by ogaworks on Fri Feb 15, 2019 11:53 pm

@adafruit_support_carter

Please check this.

https://www.youtube.com/watch?v=csK50_zQ0gI

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IMG_5947.JPG
IMG_5947.JPG (123.97 KiB) Viewed 72 times

ogaworks
 
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Re: 64x32 RGB LED Matrix - 5mm pitch not work...

by adafruit_support_carter on Mon Feb 18, 2019 1:10 pm

Thanks for the photos. That all looks OK. Can you post another photo of the solder job on the HAT header pins, and slightly at an angle. I'm a little concerned about the solder on some of them.
solder.jpg
solder.jpg (38.32 KiB) Viewed 50 times


Also - if it is related to the power connector, would be willing to try reflowing some more solder on to those pins.

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