RGB matrix backpack not working

Store Forums RGB Matrix Backpack Bugs/Problems RGB matrix backpack not working

This topic contains 4 replies, has 3 voices, and was last updated by  Michael 5 years, 10 months ago.

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • #387

    tdg8934
    Member

    Bought the RGB matrix backpack and USB FTDI TTL-232 3.3 cable from Adafruit last week. I had been using the RGB matrix 16×32 from Adafruit with my Propeller micro-controller and it is working fine with my 5vdc 10A p/s for the 16×32 rgb matrix display.

    Im an EE with 35 years experience soldering and when I plugged the backpack in to the matrix and wired to the matrix 5v terminals correctly I saw nothing on the display. I checked to make sure I had 5vdc on the matrix terminals and that was good. Nothing was overheating and retouched all the solder connections a couple of times so thats good. I even downloaded all the matrix libraries and the demo code and was able to sucessfully download the arduino packman demo code to the backpack with the new cable I bought also. I then disconnected everything and made sure the display is still working by connecting it up to my propeller microcontroller and program and everything was working on the display.

    This leads me to believe I have a bad board, soldering? or other issue.

    What can be done next to fix this?

    #1480

    tdg8934
    Member

    Great news. I saw under a magnifying glass there was a solder bridge between IDC pads 2 and 3 which makes sense why the colors were messed up.

    Everything is working great now.

    #1481

    Michael
    Keymaster

    Good to hear. Those tiny solder bridges will get you every time!

    #1822

    Glad to hear that you have found out the problem. However, I am facing the very same problem here. But, what you have said here is not working for me. Can you suggest any possible workarounds for this one?

    #1823

    Michael
    Keymaster

    Please give some more detail about the problem you are experiencing.

Viewing 5 posts - 1 through 5 (of 5 total)

You must be logged in to reply to this topic.