I’ve tried using the ESP32_FORUM_PINOUT and got nothing. I’ve tried changing all the pin maps to the I2S-DMA pin maps and still get nothing.
Is there a way I can slow the clock down or something to validate that the connectivity works?
I’m planning to get a custom PCB, so I need to validate functionality before getting it fabricated.
Thank you for the suggestion. I tried the Bitmaps sketch and noticed that it was set to SMARTMATRIX_HUB75_32ROW_MOD16SCAN. When I made that change things started working normally.
I’ve got a small number of ghosted pixels and other artifacts, but that’s probably a consequence of no level shifters and moderately long cables (they get better or worse with moving the cable).