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RGB LED Matrix Panel 32x32 5mm pitch - Blue not showing
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RGB LED Matrix Panel 32x32 5mm pitch - Blue not showing

by Fabio_la on Tue Jan 02, 2018 6:32 pm

Hello,
I bought an RGB LED Matrix 32x32 to connect to an Arduino Mega.
The matrix was connected to the board as illustrated in your fantastic tutorial.
Everything works, except that the blue component of the LED lights seem to be missing or very dimmed.
Is this something I can fix myself? I tried different DC adapters (all 5v) and also redid the connections many times.
Please see the attached images for reference, you can see that in the final screen the text "Adafruit" should be white, instead of yellow.
And the capital G is blue, but barely visible in the dark and totally invisible during the day.
I was going to buy more of the Matrixes and daisy chain them and control them with a Raspberry Pi.

Many thanks in advance for your help and advice.

F
Attachments
AF_03.jpg
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AF_02.jpg
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AF_01.jpg
AF_01.jpg (394.85 KiB) Viewed 242 times

Fabio_la
 
Posts: 7
Joined: Mon Jun 22, 2015 4:57 am

Re: RGB LED Matrix Panel 32x32 5mm pitch - Blue not showing

by Fabio_la on Fri Jan 05, 2018 6:49 pm

Update.
It was a power issue.
Used the bench power supply at 5v, each Matrix LED board takes up about 0.5A to display text.

Fabio_la
 
Posts: 7
Joined: Mon Jun 22, 2015 4:57 am

Please be positive and constructive with your questions and comments.