Need help with P5 Outdoor Panel 64x32 1/8 - Chips on it SM16208 and RUL5158

[nur476]

Hi,

I have a board with specs on title, working on it but some lines never lights up. You can see here:

I tried this code: https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/issues/500#issuecomment-1722257816 with various X Y sizes, but some lines on Y never responded. Btw I double checked A,B,C cabling, it seems as a multiplexing problem but I don't know why.

What is that I am missing?

Thanks in advance.

[nur476]

Something strange. I am using this code on ESP32-S2:

`

include "ESP32-HUB75-MatrixPanel-I2S-DMA.h"

/* Use the Virtual Display class to re-map co-ordinates such that they draw

• correctly on a 32x16 1/8 Scan panel (or chain of such panels). */

  include "ESP32-VirtualMatrixPanel-I2S-DMA.h"

  // default pins:

  define R1_PIN 45

  define G1_PIN 42

  define B1_PIN 41

  define R2_PIN 40

  define G2_PIN 39

  define B2_PIN 38

  define A_PIN 37

  define B_PIN 36

  define C_PIN 35

  define D_PIN -1

  define E_PIN -1 // required for 1/32 scan panels, like 64x64. Any available pin would do, i.e. IO32

  define LAT_PIN 26

  define OE_PIN 21

  define CLK_PIN 33

  // Panel configuration

  define PANEL_RES_X 64 // Number of pixels wide of each INDIVIDUAL panel module.

  define PANEL_RES_Y 12 // Number of pixels tall of each INDIVIDUAL panel module.

  define NUM_ROWS 1// Number of rows of chained INDIVIDUAL PANELS

  define NUM_COLS 1 // Number of INDIVIDUAL PANELS per ROW

  // ^^^ NOTE: DEFAULT EXAMPLE SETUP IS FOR A CHAIN OF TWO x 1/8 SCAN PANELS // Change this to your needs, for details on VirtualPanel pls read the PDF!

  define SERPENT false

  define TOPDOWN false

  // placeholder for the matrix object MatrixPanel_I2S_DMA *dma_display = nullptr; /**

  • Setup! **/ void setup() { delay(250); Serial.begin(115200); Serial.println(""); Serial.println(""); Serial.println(""); Serial.println(""); Serial.println(" 1/4 Scan Panel "); Serial.println(""); 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( PANEL_RES_X, // DO NOT CHANGE THIS PANEL_RES_Y, // DO NOT CHANGE THIS NUM_ROWS*NUM_COLS // DO NOT CHANGE THIS ,_pins // Uncomment to enable custom pins ); //mxconfig.driver = HUB75_I2S_CFG::ICN2038S; mxconfig.latch_blanking=1; mxconfig.clkphase = false; // Change this if you see pixels showing up shifted wrongly by one column the left or right. // OK, now we can create our matrix object //mxconfig.i2sspeed =HUB75_I2S_CFG::HZ_10M; dma_display = new MatrixPanel_I2S_DMA(mxconfig); // let's adjust default brightness to about 75% dma_display->setBrightness8(10); // range is 0-255, 0 - 0%, 255 - 100% // Allocate memory and start DMA display if( not dma_display->begin()) Serial.println("** !KABOOM! I2S memory allocation failed ***"); dma_display->clearScreen(); delay(500); } void loop() { uint16_t color = dma_display->color565(50, 50,50); //blue for (int y = 0; y < PANEL_RES_Y; y++) // for (int i = 0; i <128; i=i+2) { for (int x = 0; x < PANEL_RES_X; x++) //for (int f = 0; f < 64; f=f+1) { dma_display->drawPixel(x,y, color); Serial.print("drawPixel: "); Serial.print("("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.println(")"); delay(50); } } delay(5000); dma_display->clearScreen(); } // end loop `

When I used

PANEL_RES_X 64 PANEL_RES_Y 12

This is when loop completed:

But if I change

PANEL_RES_X 64 PANEL_RES_Y 12 to 16

Less leds up:

How can this be possible? With more drawing, it draws led in fact and with same x,y coordinates, it draws diffrrent places.

[board707]

it draws led in fact and with same x,y coordinates, it draws diffrrent places.

Because your matrix uses a shift register (595 type) multiplexor - RU5158

Your panel is a difficult case - it requires changing the code in two places at once - one for the quarter-scan panel and the second for a new type of multiplexer not supported in the library.