Issue with New P4 panel, please add it

[Cyberster]

Panel description

It is a outdoor P4 panel manufactured by Quangli

Dimensions (in pixels) : 80x40

Scan factor: 1/10

Chips on rear side: DP5125D, DP32020A, DP245D

Panel photos

Sample videos

Specifications

• Library version: v1.1.5
• Platform: STM32
• MCU board: blackpil STM32F411CEU6
• Connections: used pins
  -- Default

#define DMD_PIN_A PB6
#define DMD_PIN_B PB5
#define DMD_PIN_C PB4
#define DMD_PIN_D PB3
#define DMD_PIN_E PB8
#define DMD_PIN_nOE PB0
#define DMD_PIN_SCLK PB7 // lat
uint8_t custom_rgbpins[] = {PA6, PA0,PA1,PA2,PA3,PA4,PA5 }; // CLK, R0, G0, B0, R1, G1, B1

[Cyberster]

I've tried all patterns vailable in DMD_PANEL_TEMPLATES_H

[board707]

Your panel has a shift register line driver, so you need to use a DMD_RGB_SHIFTREG_ABC class instead of DMD_RGB.

Set the template

#define RGB80x40plainS10_test  3,80,40,10,1

and run a dmd_rgb_pattern_test example and show the video.

[Cyberster]

I have tried the RGB80x40plainS10_test with DMD_RGB_SHIFTREG_ABC class and below is the result.

#define RGB80x40plainS10_test  3,80,40,10,1

// DMD_RGB <RGB80x40plainS10_test, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);
DMD_RGB_SHIFTREG_ABC <RGB80x40plainS10_test, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);

I thing I would like to mention that, at the back of the panel, it is written that it is a HUB75 panel and pin outs are below

R0   G0
B0   DI
R1   G1
B1   GND
A     B
C     D
S     L 
OE  GND

I assumed DI as E pin and connecte it to PB8.

[board707]

Hi
Thanks for your video... but...
The picture in your video is random noise, which indicates bad connections. It has nothing to do with the shift register or the pixel pattern, sorry.

I assumed DI as E pin and connecte it to PB8.

Your panel do not has a E pin, because it has only 10 scan lines, for addressing which 4 pins (A-D) are enough. I think you can connect pin DI to GND .