Connecting 8 x 32 Matrix to Arduino

Hello , I am building a project I saw on YouTube. https://www.youtube.com/watch?v=mTdiO4Nka6o I know the LEDs are working because I used a different controller to test. When I download the code to the Arduino and connect it to the LED matrix as per scribe wiring diagram , the LEDs do not lite up. I tried two different Arduino nanos.

I am using a solderless breadboard for my testing Is it the code or h/w (Arduino)?

The project designer does not answer email. Also under Programming Questions there are several articles about the code. https://forum.arduino.cc/?topic=707456#msg4754605

I will be using this LED matrix for my Christmas Light show.

Any suggestions?

Thank you in Advance

andrewb680:
I will be using this LED matrix for my Christmas Light show.

Looks like reasonable project timing then. :grinning:

I am using a solderless breadboard for my testing

Use your multimeter to double check all wiring continuity and voltages.

Post clear, complete, detailed images of your hardware and wiring. Also post the code you’re using inline in a post, inside code tags for correct forum formatting.