Lot of Pixel Noise / Ghosting

[GeorgeFlorian]

OS: Linux Mint 19.1 IDE: Arduino IDE 1.8.8 and esp32-core Release 1.0.1 January 2019 Board: ESP32 Wrover-B DevKitV4

I've ended up using the following GPIOs : 13, 14, 15, 18, 19, 21, 22, 23, 25, 26, 27, 32, 33. For A , instead of 12 I'm using 13. For C, instead of 17, I'm using 14. For B, instead of 16, I'm using 19.

So the constructor should look like this, right ? P3RGB64x32MatrixPanel matrix(25, 26, 27, 21, 22, 23, 15, 32, 33, 13, 19, 14, 18);

This is how it looks now using a breadboard and ESP32 Wrover-B DevKitV4:

This is the result:

I've ran the testshapes_32x64 example code with the following constructor:

P3RGB64x32MatrixPanel matrix(25, 26, 27, 21, 22, 23, 15, 32, 33, 13, 19, 14, 18);

As you can see there's a lot of pixel noise. And beside the pixel noise,, I don't think that should be the output... the rows are on top of each other and repeating themselves.

What should appear on the LED Display with the testshapes_32x64 example ?

What do you think the issue is ?

[GeorgeFlorian]

Any thoughts ?

[NeoCat]

Let's see what happens if pins for D (specifies 8 rows section) are disconnected or moved to other pins.

[GeorgeFlorian]

Let's see what happens if pins for D (specifies 8 rows section) are disconnected or moved to other pins.

1. D disconnected
2. D to Ground
3. D to another pin Nothing works.

I've used the following constructor: P3RGB64x32MatrixPanel matrix(25,5,26,27,23,14,2,33,32,13,21,18,19);

There is now way of selecting row scan patter, is it ?