P6 32x32 HUB75 Incorrect Configuration

1

I’m struggling to get any reasonable output trying to run demo 0 (rotating square). I had claude create a script that cycles through hundreds of configuration options but at the end of the day the closest I get is garbled lights. I’m running a raspberry pi 4 B with an ElectroDragon RGB Matrix Panel Drive Board.

I purchased these boards from AliExpress (B44C 3Pcs P6 Outdoor LED Screen Panel 32X32 Pixels LED Display Module 192X192mm 1/4 Scan RGB Full Color LED Screen Panel).

The Hub75 pins are labeled as labeled as.
R1 - G1
B1 - GND
R2 - G2
B2 - GND
A - B
C - NC
CLK - LAT
OE - GND

I do have a spare P3 64x64 panel I used for verifying my setup and I could get that panel to work just fine. But the P6 32x32 has been a no go. Please help!

2

The most probably reason of this that the panels are “1/4 Scan”. Such panels needs to setup a custom pixel mapping as described in Readme “Multiplexing” section: