P10 Outdoor Panel Problem

[Jetiman]

Hi,

I have a problem. My RGB LED Matrix shows only funny things. No matter what I hire.

P10 RGB 32x16

Cable connected as described. A B C D

Have it already "Display.begin (4); display.setScanPattern (ZAGGIZ); display.setMuxPattern (STRAIGHT); " but it tries only as in the video

https://youtu.be/Nmd7f6M5Kak

Plattern_test https://youtu.be/LN4MGtVa4TM

https://de.aliexpress.com/item/1248297006.html?spm=a2g0s.9042311.0.0.88be4c4dxRtA3N

EDIT:

https://github.com/hzeller/rpi-rgb-led-matrix/issues/529 Maybe that helps? I'm not that good at programming

[kenle]

@Jetiman This worked for me after some hacking around, search for the following code in PxMatrix.h and comment it out or delete it, it should be around line number 494 in the file.

  if ((_scan_pattern == ZAGGIZ) && ((y % (_row_pattern * 2)) < _row_pattern))
    bit_select = 7 - bit_select;

I have my modes set as

  display.begin(4);
  display.setScanPattern(ZAGGIZ);
  display.setMuxPattern(BINARY);

[Jetiman]

same matrix?

makes the same mistake with the changes

[kenle]

@Jetiman It looked like I had a similar problem with you on the "pattern test" video you have. The Y-Axis pixels came out in the wrong order, however the X-axis was in the correct order.

I'm using this panel: http://www.ylrled.net/product/75992050.html

After the fix I showed the Y-Axis ordering was corrected.

[2dom]

Could you try the latest master with

display.setScanPattern(ZAGZIG);

please?

[Jetiman]

It does something different, but not yet the right one

plattern test https://youtu.be/LISa_5ivWgw

pixelime https://youtu.be/RLEhaaQUw8c

[2dom]

OK ... I screwed up the boolean algebra bit ... can you try again with the latest master?

[2dom]

with display.setScanPattern(ZAGZIG); of course

[Jetiman]

gets better. But it is not right yet what is better for testing, pixeltime or plates test

https://youtu.be/rbGpSaQU_7w

[2dom]

just to get this straight .. you only commented

  if ((_scan_pattern == ZAGGIZ) && ((y % (_row_pattern * 2)) < _row_pattern))
    bit_select = 7 - bit_select;

out and it worked with display.setScanPattern(ZAGGIZ); ?

[2dom]

can you repeat/verify with the latest master?

[Jetiman]

latest master

Okay, I commented that out in PxMatrix.h if ((_scan_pattern == ZAGGIZ) && ((y % (_row_pattern * 2)) < _row_pattern)) bit_select = 7 - bit_select;

My settings are:

PxMATRIX display(32,16,P_LAT, P_OE,P_A,P_B,P_C,P_D);
  display.begin(4);
  display.setScanPattern(ZAGGIZ);
  display.setMuxPattern(STRAIGHT);

added (at (((_scan_pattern----- because otherwise an error comes if ((yy<=y) && (y<yy+_row_pattern)) total_offset_r=base_offset-row_sector__offset*row_sector-(((_scan_pattern==ZAGGIZ)||(_scan_pattern==ZAGZIG)) ? 1: 0);

https://youtu.be/wYsXzSe81IE

can you german?

[2dom]

OK ... lets start from the beginning. Please run the pattern test and place

display.displayTestPixel(70);

in the display_updater() (and post the video)

[Jetiman]

https://youtu.be/F9kLLQD2Cac

[2dom]

Ca you post you display_update function....still looks like the pattern test

[Jetiman]

sorry I have set the wrong setting https://youtu.be/mxRiKaEZDpQ

#include <PxMatrix.h>

#ifdef ESP32

#define P_LAT 22
#define P_A 19
#define P_B 23
#define P_C 18
#define P_D 5
#define P_E 15
#define P_OE 2
hw_timer_t * timer = NULL;
portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED;

#endif

#ifdef ESP8266

#include <Ticker.h>
Ticker display_ticker;
#define P_LAT 16
#define P_A 5
#define P_B 4
#define P_C 15
#define P_D 12
#define P_E 0
#define P_OE 2

#endif
// Pins for LED MATRIX

//PxMATRIX display(32,16,P_LAT, P_OE,P_A,P_B,P_C);
PxMATRIX display(32,16,P_LAT, P_OE,P_A,P_B,P_C,P_D);
//PxMATRIX display(64,64,P_LAT, P_OE,P_A,P_B,P_C,P_D,P_E);

#ifdef ESP8266
// ISR for display refresh
void display_updater()
{
  //display.displayTestPattern(70);
   display.displayTestPixel(70);
  //display.display(70);
}
#endif

#ifdef ESP32
void IRAM_ATTR display_updater(){
  // Increment the counter and set the time of ISR
  portENTER_CRITICAL_ISR(&timerMux);
  //isplay.display(70);
  display.displayTestPixel(70);
  portEXIT_CRITICAL_ISR(&timerMux);
}
#endif

uint16_t myCYAN = display.color565(0, 255, 255);
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
  display.begin(4);
  display.flushDisplay();
  display.setTextColor(myCYAN);
  display.setCursor(2,0);
  display.print("Pixel");
  Serial.println("hello");
  display.setMuxPattern(STRAIGHT);

  #ifdef ESP8266
    display_ticker.attach(0.002, display_updater);
  #endif

  #ifdef ESP32
    timer = timerBegin(0, 80, true);
    timerAttachInterrupt(timer, &display_updater, true);
    timerAlarmWrite(timer, 2000, true);
    timerAlarmEnable(timer);
  #endif

  delay(1000);
}

void loop() {

 delay(100);

}

[2dom]

OK ... that is a really strange byte split pattern. I tried to implement it.

You can try the latest master, use pixeltime example with display.setScanPattern(ZZAGG);

[Jetiman]

It works. There are only a few single pixel errors in it. Above the font and top right

https://youtu.be/ZHA9_0a_gL0

[2dom]

Ok...a few basic things to check. Do you have a power supply rated >3A and proper cables (beefy) between panel and power supply

[2dom]

Verify the ground connection between panel and esp

[Jetiman]

think it's up to my jumper cables. Power supply is a 5v -10A with big power cords

[2dom]

Another thing is to make sure that the E wire is connected between the esp and matrix or grounded (try both)

[2dom]

If you leave E floating on the panel it leads to artifacts on some panels

[Jetiman]

I do not have an E pin. Have three GND. I have also connected. Will the days test other cables

[kenle]

@Jetiman I'm not sure this will help in your case, but just throwing it out there in case it can solve your problem.

Things you can try:

1. Turn off fastUpdate and choose a "display_draw_time" other than zero (e.g. 25)
2. Reduce the SPI clock rate SPI.setFrequency(); I set mine to 7,500,000 [This could help with long lossy cables, lower frequencies will have less loss and less noise).

[2dom]

Thanks @kenle !

[kenle]

@2dom One off-topic but related note.

If you slow down the frequency and you are also using Wifi server/client, Wifi may stop working. I believe because fillMatrixBuffer function takes a while, and with slower frequency this may cause Wifi to "timeout", because not enough cpu cycles for it to operate correctly.

To solve this, I had to play with frequency rate and also the ticker interval until the Wifi began to work again. The parameters I finally came up with for tradeoffs between decent display and working Wifi is:

1. SPI Frequency: 9500000
2. Ticker interval: 0.005
3. Fast Update: true
4. display_draw_time: 50

[jakaisna]

its work to p10 outdor

// This is how many color levels the display shows - the more the slower the update //#define PxMATRIX_COLOR_DEPTH 8

// Defines the buffer height / the maximum height of the matrix //#define PxMATRIX_MAX_HEIGHT 64

// Defines the buffer width / the maximum width of the matrix //#define PxMATRIX_MAX_WIDTH 64

// Defines how long we display things by default //#define PxMATRIX_DEFAULT_SHOWTIME 30

// Defines the speed of the SPI bus (reducing this may help if you experience noisy images) //#define PxMATRIX_SPI_FREQUENCY 20000000

// Creates a second buffer for backround drawing (doubles the required RAM) //#define PxMATRIX_double_buffer true

include

// Pins for LED MATRIX

ifdef ESP32

define P_LAT 22

define P_A 19

define P_B 23

define P_C 18

define P_D 5

define P_E 15

define P_OE 2

hw_timer_t * timer = NULL; portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED;

endif

ifdef ESP8266

include

Ticker display_ticker;

define P_LAT 16

define P_A 5

define P_B 4

define P_C 15

define P_D 12

define P_E 0

define P_OE 2

endif

define matrix_width 32

define matrix_height 16

// This defines the 'on' time of the display is us. The larger this number, // the brighter the display. If too large the ESP will crash uint8_t display_draw_time=60; //30-70 is usually fine

//PxMATRIX display(32,16,P_LAT, P_OE,P_A,P_B,P_C); PxMATRIX display(32,16,P_LAT, P_OE,P_A,P_B,P_C,P_D); //PxMATRIX display(64,64,P_LAT, P_OE,P_A,P_B,P_C,P_D,P_E);

// Some standard colors uint16_t myRED = display.color565(255, 0, 0); uint16_t myGREEN = display.color565(0, 255, 0); uint16_t myBLUE = display.color565(0, 0, 255); uint16_t myWHITE = display.color565(255, 255, 255); uint16_t myYELLOW = display.color565(255, 255, 0); uint16_t myCYAN = display.color565(0, 255, 255); uint16_t myMAGENTA = display.color565(255, 0, 255); uint16_t myBLACK = display.color565(0, 0, 0);

uint16_t myCOLORS[8]={myRED,myGREEN,myBLUE,myWHITE,myYELLOW,myCYAN,myMAGENTA,myBLACK};

uint8_t static weather_icons[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0xff,0xe0,0x00,0x00,0x00,0x00,0xff,0xe0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xff,0x07,0xff,0x07,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x07,0xff,0x07,0xff,0x07,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xe0,0xff,0xe0,0xff,0xe0,0xff,0xe0,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0xff,0xe0,0xff,0xe0,0xff,0xe0,0xff,0xe0,0xff,0xe0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xe0,0xff,0xe0,0xff,0xe0,0xff,0xe0,0xff,0xe0,0x00,0x00,0x00,0x00,0x00,0x00 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};

ifdef ESP8266

// ISR for display refresh void display_updater() { display.display(display_draw_time); }

endif

ifdef ESP32

void IRAM_ATTR display_updater(){ // Increment the counter and set the time of ISR portENTER_CRITICAL_ISR(&timerMux); display.display(display_draw_time); portEXIT_CRITICAL_ISR(&timerMux); }

endif

void display_update_enable(bool is_enable) {

ifdef ESP8266

if (is_enable) display_ticker.attach(0.004, display_updater); else display_ticker.detach();

endif

ifdef ESP32

if (is_enable) { timer = timerBegin(0, 80, true); timerAttachInterrupt(timer, &display_updater, true); timerAlarmWrite(timer, 4000, true); timerAlarmEnable(timer); } else { timerDetachInterrupt(timer); timerAlarmDisable(timer); }

endif

}

void setup() {

Serial.begin(9600); // Define your display layout here, e.g. 1/8 step, and optional SPI pins begin(row_pattern, CLK, MOSI, MISO, SS) display.begin(4); //display.begin(8, 14, 13, 12, 4);

// Define multiplex implemention here {BINARY, STRAIGHT} (default is BINARY) //display.setMuxPattern(BINARY); display.setMuxPattern (STRAIGHT);

// Set the multiplex pattern {LINE, ZIGZAG,ZZAGG, ZAGGIZ, WZAGZIG, VZAG, ZAGZIG} (default is LINE) //display.setScanPattern(LINE); display.setScanPattern(ZZAGG);

// Rotate display //display.setRotate(true);

// Flip display //display.setFlip(true);

// Control the minimum color values that result in an active pixel //display.setColorOffset(5, 5,5);

// Set the multiplex implemention {BINARY, STRAIGHT} (default is BINARY) //display.setMuxPattern(BINARY);

// Set the color order {RRGGBB, RRBBGG, GGRRBB, GGBBRR, BBRRGG, BBGGRR} (default is RRGGBB) //display.setColorOrder(RRGGBB);

// Set the time in microseconds that we pause after selecting each mux channel // (May help if some rows are missing / the mux chip is too slow) //display.setMuxDelay(0,1,0,0,0);

// Set the number of panels that make up the display area width (default is 1) //display.setPanelsWidth(2);

// Set the brightness of the panels (default is 255) //display.setBrightness(50);

// Set driver chip type //display.setDriverChip(FM6124);

display.clearDisplay(); display.setTextColor(myCYAN); display.setCursor(2,0); display.print("Pixel"); display.setTextColor(myMAGENTA); display.setCursor(2,8); display.print("Time"); display_update_enable(true);

delay(3000);

} union single_double{ uint8_t two[2]; uint16_t one; } this_single_double;

// This draws the weather icons void draw_weather_icon (uint8_t icon) { if (icon>10) icon=10; for (int yy=0; yy<10;yy++) { for (int xx=0; xx<10;xx++) { uint16_t byte_pos=(xx+icon10)2+yy*220; this_single_double.two[1]=weather_icons[byte_pos]; this_single_double.two[0]=weather_icons[byte_pos+1]; display.drawPixel(1+xx,yy,this_single_double.one); } } }

unsigned long last_draw=0; void scroll_text(uint8_t ypos, unsigned long scroll_delay, String text, uint8_t colorR, uint8_t colorG, uint8_t colorB) { uint16_t text_length = text.length(); display.setTextWrap(false); // we don't wrap text so it scrolls nicely display.setTextSize(1); display.setRotation(0); display.setTextColor(display.color565(colorR,colorG,colorB));

// Asuming 5 pixel average character width
for (int xpos=matrix_width; xpos>-(matrix_width+text_length*5); xpos--)
{
  display.setTextColor(display.color565(colorR,colorG,colorB));
  display.clearDisplay();
  display.setCursor(xpos,ypos);
  display.println(text);
  delay(scroll_delay);
  yield();

  // This might smooth the transition a bit if we go slow
  // display.setTextColor(display.color565(colorR/4,colorG/4,colorB/4));
  // display.setCursor(xpos-1,ypos);
  // display.println(text);

  delay(scroll_delay/5);
  yield();

}

}

uint8_t icon_index=0; void loop() { scroll_text(1,50,"Welcome to PxMatrix!",96,96,250); display.clearDisplay();

draw_weather_icon(icon_index); icon_index++; if (icon_index>10) icon_index=0;

for (int xx=0; xx<16;xx++) { display.drawLine(xx+16,0,xx+16,5,display.color565(xx16,0,0)); display.drawLine(xx+16,6,xx+16,10,display.color565(0,xx16,0)); display.drawLine(xx+16,11,xx+16,15,display.color565(0,0,xx*16)); } delay(1000); for (uint8_t dimm=255; dimm>0; dimm--) { display.setBrightness(dimm); delay(5); } for (uint8_t dimm=0; dimm<255; dimm++) { display.setBrightness(dimm); delay(5); }

}