P4 64x32 problem

[kalyan-m25]

Help

[kalyan-m25]

A set of chips

Scan 1/16

[kalyan-m25]

[board707]

Hi @kalyan-m25
Thanks for clear informative photos.

There is nothing in the characteristics of this panel 64x32 16s SM16208/SM5166 that would require individual settings. The parameters of your panel are fully compatible with this library, so I think you should look for problems in something else - for example, insufficient power or bad connections.

[kalyan-m25]

Thank you for your response! Of course, I checked the connection several times before asking for help. The power supply is 5V 6A. I don't understand what could be causing the issue. The image appears both at the top and bottom of the screen.

[board707]

I checked the connection several times

I just noticed that your photo only has five wires.

Where did you get that wiring diagram from?

[kalyan-m25]

This is data Out, please do not look at it, it is for the PxMatrix library

[kalyan-m25]

The connection looks like this. The lines are not used

[kalyan-m25]

It looks like I'm going to postpone this issue. It seems like a matrix defect. I have another P4 80x40 matrix with different chips. Can it work with this library?

[board707]

I have another P4 80x40 matrix

What is the scan factor?

with different chips.

Your script is not so clear as your photos :) What is the first chip name - TC7559 ?

[kalyan-m25]

Yes Tc7559.

I don't know the scan factor, but as I know from the internet, it's usually 1/10 or 1/20.
Thank you for your help

[board707]

For TC7559 chip you have to use an option

mxconfig.driver = HUB75_I2S_CFG::DP3246_SM5368;

As for scan factor...

it's usually 1/10 or 1/20.

These cases are very different things - with 1/20 you can use library code without additions, for 1/10 you probably need to develop a custom mapping using a Virtual_panel library class like that done in #622

[davemaster]

Greetings,

Have You try that panel,? Have another panel that did works with your esp32 ? I suggest a re-examination of your connection, again

[kalyan-m25]

I've put the P4 64x32 panel aside for now, and I think the problem is with the panel. I'm trying to connect another P4 80x40 panel. I've changed the size and driver type in the code, and here's what I see.