ESP32 with 64x64 HUB75E Panel

[Npmr]

Hello together :) ,

i have a very small 64x64 panel from Waveshare with a HUB75-E connector with a 1/32 scan.
Using the documentation of this cool project i got half of it to run. Im using a old ESP32 as a controller.

I defined the pin usage as follow
#define R1_PIN 25 #define G1_PIN 26 #define B1_PIN 27 #define R2_PIN 14 #define G2_PIN 12 #define B2_PIN 13 #define A_PIN 23 #define B_PIN 19 #define C_PIN 5 #define D_PIN 17 #define E_PIN 32 #define LAT_PIN 4 #define OE_PIN 15 #define CLK_PIN 16

and in the setup method i use
HUB75_I2S_CFG::i2s_pins _pins={R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN}; HUB75_I2S_CFG mxconfig( 64, // Module width 64, // Module height 1, // chain length _pins // pin mapping ); mxconfig.clkphase = false;
to use the defined pins.

Unfortunately only half of the rows showing a sign of life. As you can see in the picture.
Because i could not find a solution for my problem in the other discussions / issues, maybe my search was not that good, i wanted to ask here if you got a idea what the problem is and how to fix it.

The display in question is the following:
https://www.waveshare.com/wiki/RGB-Matrix-P2-64x64 with the back code DCHY-P2-64x64-1515-VP

[mrcodetastic]

Looks like a B pin issue. Try another GPIO for this.

[mrcodetastic]

Check the wiring and wire as well.

[Npmr]

Thats it! Thank you for your help and the fast response!

I will close the discussion :)

[mrcodetastic]

No problem. Nothing worse than having an exciting and shiny new led panel to play with that doesn't show stuff properly.

[davemaster]

Greetings,

I recommend You, check again those cables, each, continuity.. best regards