P10 32x16 RGB LED Panel 1/4s spliting image with RGBmatrixPanel Lib in Arduino UNO R3 ATMEGA328P

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1

Have you guys had a problem like this? Spliting image in the LED Panel

20250529_230253
20250529_2302531920×865 92.9 KB

It's just run examples testcolors demo for Adafruit RGBmatrixPanel library. Or you guys can suggest another library that might support my LED panel(P10 32x16 RGB LED Panel 1/4s?

2

Looks like you do not have the right board... not enough RAM.

You cannot use this size panel with an Arduino UNO (ATmega328) or ATmega32u4
- you need a chip with more RAM!

3

Okay i willl try with another arduino UNO, thanks

4

Try a dozen Unos, all will fail. Not enough memory.

5

No.

6

32 * 16 * 3 = 1.5k... should fit but there is not much RAM left for anything else.

Please check for loose connections. Is pin B connected to the right pin?

7

The library uses a 4bit colors, so it will be a 32*16 *3 / 2 = 750 bytes

The source of the issue is a scan factor - the RGBmatrixPanel library doesn't support a 1/4s panels.

Try another libraries -

for ESP32 boards:

or (STM32 / RP2040)

8

You are right. But I would expect line L4-L7 to be mapped on line L0-L3 and not blanked.