Monochrome 32*16 P10 HUB12 LED matrix control with ESP32

[Louis]

I finally had a chance to hook up the panel @BodoMinea was kind enough to send me (it’s been a busy year…) and MultiRowRefreshMapping in testing mode works for me with these changed settings, and an ESP32 with level shifting buffers:

#define SKETCH_MODE   MODE_MAP_TESTING
const uint16_t kMatrixHeight = 32;
const uint8_t kPanelType = SM_PANELTYPE_HUB12_16ROW_32COL_MOD4SCAN;
const uint32_t kMatrixOptions = (SM_HUB75_OPTIONS_HUB12_MODE);

If I use the same sketch on an ESP32 without level shifting buffers, the pixels jump around quite a bit instead of going from left to right across one row.

[Omkareshwar]

Hi everyone, I am trying to achieve same thing. I got esp 32 and P10 display. Currently nothing is visible on my display. Can you guys please help me . Thanks in advance.

[b707]

If using ESP32 is not mandatory for you, I can suggest to test my library DMD_STM32 that supports HUB12 monochrome and HUB75 RGB panels on STM32 and RP2040 boards.

[golead_rich]

Hi, currently i am working with P10 single color. and i try the library you try, and i facing a noise with the showing text. not stable. can you gimme any advice? how your result is good like the video you share.

i use esp-32S espressif wroom, p10 module single color. and the power for led module is from 5v adaptor. while the esp32 got the power from USB laptop.

[Taresh_Gupta]

hey everyone ,
i am trying to acheive the same thing in this discussion ,i.e to drive a P10 led hub12 led module with an esp32 .even with using dmd32 library , i was not able to light up the panel. but the panel works fine with an arduino uno . Is it a problem of voltage level shifter ,becuase i didnt use any …Any inputs would be appreciated ! thanks …

[marcmerlin]

yes, it could indeed be a problem with level shifters missing depending on what minimal voltage that panel expects. You are supposed to give it 5V logic, not 3.3V logic

[Taresh_Gupta]

For anyone reading this, problem was not voltage level, but this:

Solution in case if your matrix doesn`t work

, hope this saves you some headache.