Flashing Matrix Problem

Store Forums RGB Matrix Backpack Bugs/Problems Flashing Matrix Problem

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  • #8527

    I’ve installed the backpack on a 16×32 from Tinkersphere. Running the shapes demo it flashes (yay) but just cycles through a series of different color full-screen flashes with a few shapes (can’t quite tell what they are).

    Is that a programming issue? It looks to me like it should just cycle through the setup code, and set of flashes, once, and then be left with some text.

    Maybe the device is restarting? Any clues?

    • This topic was modified 5 years ago by mdm.

    Which code are you running on it? I’m not clear.

    Did the backpack work with the code that was pre installed on it?

    Did you buy the backpack from us or Tinkersphere?


    Hi Michael.

    I bought the backpack from you. I am running the Adafruit software
    // testshapes demo for Adafruit RGBmatrixPanel library.
    // Demonstrates the drawing abilities of the RGBmatrixPanel library.`

    Downloaded latest from github.

    Oh, and I don’t know if the panel worked with the code shipped on it. I hooked it up wrong to my first panel and uploaded the new code thinking that was the problem. It was not…

    • This reply was modified 5 years ago by mdm.


    I had neglected to redefine the latch value as is advised.

    This change is needed in the code:
    #define LAT 10


    Ok, good to hear. Have fun.

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