New 7" Display

SM0PYH · February 28

Hi

Squareline demo still not working.

https://github.com/Elecrow-RD/esp32-display/tree/master/7.0/3%E3%80%81arduino/7.0-inch_Squareline_Demo

It is working with my old 5" display but not with my new 7" (the new version with I2C port.

Sometimes I can see a faint image on screen 1, screen 2 fading and switching. Touch doesn't work, or you can see the coordinates coming in but nothing else.

Any suggestions?

Elecrow · February 29

Hello @SM0PYH ,

Please change the screen driver from Arduino_GFX to LovyanGFX

LovyanGFX.zip

and modify

#include <Arduino_GFX_Library.h>
#define TFT_BL 2
#define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin


/******Please define a corresponding line based on your development board.************/
//#define Display_43
//#define Display_50
#define Display_70
/*******************************************************************************
 * Screen Driver Configuration 
*******************************************************************************/
#if defined (Display_43)         //4.3INCH 480x272
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(
  GFX_NOT_DEFINED /* CS */, GFX_NOT_DEFINED /* SCK */, GFX_NOT_DEFINED /* SDA */,
  40 /* DE */, 41 /* VSYNC */, 39 /* HSYNC */, 42 /* PCLK */,
  45 /* R0 */, 48 /* R1 */, 47 /* R2 */, 21 /* R3 */, 14 /* R4 */,
  5 /* G0 */, 6 /* G1 */, 7 /* G2 */, 15 /* G3 */, 16 /* G4 */, 4 /* G5 */,
  8 /* B0 */, 3 /* B1 */, 46 /* B2 */, 9 /* B3 */, 1 /* B4 */
);
Arduino_RPi_DPI_RGBPanel *lcd = new Arduino_RPi_DPI_RGBPanel(
  bus,
  480 /* width */, 0 /* hsync_polarity */, 8 /* hsync_front_porch */, 4 /* hsync_pulse_width */, 43 /* hsync_back_porch */,
  272 /* height */, 0 /* vsync_polarity */, 8 /* vsync_front_porch */, 4 /* vsync_pulse_width */, 12 /* vsync_back_porch */,
  1 /* pclk_active_neg */, 7000000 /* prefer_speed */, true /* auto_flush */);
  
#elif defined (Display_50)         //5.0INCH 800x480
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(
  GFX_NOT_DEFINED /* CS */, GFX_NOT_DEFINED /* SCK */, GFX_NOT_DEFINED /* SDA */,
  40 /* DE */, 41 /* VSYNC */, 39 /* HSYNC */, 0 /* PCLK */,
  45 /* R0 */, 48 /* R1 */, 47 /* R2 */, 21 /* R3 */, 14 /* R4 */,
  5 /* G0 */, 6 /* G1 */, 7 /* G2 */, 15 /* G3 */, 16 /* G4 */, 4 /* G5 */,
  8 /* B0 */, 3 /* B1 */, 46 /* B2 */, 9 /* B3 */, 1 /* B4 */
);
Arduino_RPi_DPI_RGBPanel *lcd = new Arduino_RPi_DPI_RGBPanel(
  bus,
  800 /* width */, 0 /* hsync_polarity */, 210 /* hsync_front_porch */, 4 /* hsync_pulse_width */, 43 /* hsync_back_porch */,
  480 /* height */, 0 /* vsync_polarity */, 22 /* vsync_front_porch */, 4 /* vsync_pulse_width */, 12 /* vsync_back_porch */,
  1 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);
  
#elif defined (Display_70)       //7.0INCH 800x480
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(
  GFX_NOT_DEFINED /* CS */, GFX_NOT_DEFINED /* SCK */, GFX_NOT_DEFINED /* SDA */,
  41 /* DE */, 40 /* VSYNC */, 39 /* HSYNC */, 0 /* PCLK */,
  14 /* R0 */, 21 /* R1 */, 47 /* R2 */, 48 /* R3 */, 45 /* R4 */,
  9 /* G0 */, 46 /* G1 */, 3 /* G2 */, 8 /* G3 */, 16 /* G4 */, 1 /* G5 */,
  15 /* B0 */, 7 /* B1 */, 6 /* B2 */, 5 /* B3 */, 4 /* B4 */
);
Arduino_RPi_DPI_RGBPanel *lcd = new Arduino_RPi_DPI_RGBPanel(
  bus,
  800 /* width */, 0 /* hsync_polarity */, 210 /* hsync_front_porch */, 1 /* hsync_pulse_width */, 46 /* hsync_back_porch */,
  480 /* height */, 0 /* vsync_polarity */, 22 /* vsync_front_porch */, 1 /* vsync_pulse_width */, 23 /* vsync_back_porch */,
  0 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);
#endif


/*******************************************************************************
 * Screen Driver Configuration  end
*******************************************************************************/

into

#define LGFX_USE_V1
#include <LovyanGFX.hpp>
#include <lgfx/v1/platforms/esp32s3/Panel_RGB.hpp>
#include <lgfx/v1/platforms/esp32s3/Bus_RGB.hpp>
/*******************************************************************************

 ******************************************************************************/
#define TFT_BL 2


class LGFX : public lgfx::LGFX_Device
{
public:


  lgfx::Bus_RGB     _bus_instance;
  lgfx::Panel_RGB   _panel_instance;


  LGFX(void)
  {




    {
      auto cfg = _bus_instance.config();
      cfg.panel = &_panel_instance;
      
      cfg.pin_d0  = GPIO_NUM_15; // B0
      cfg.pin_d1  = GPIO_NUM_7;  // B1
      cfg.pin_d2  = GPIO_NUM_6;  // B2
      cfg.pin_d3  = GPIO_NUM_5;  // B3
      cfg.pin_d4  = GPIO_NUM_4;  // B4
      
      cfg.pin_d5  = GPIO_NUM_9;  // G0
      cfg.pin_d6  = GPIO_NUM_46; // G1
      cfg.pin_d7  = GPIO_NUM_3;  // G2
      cfg.pin_d8  = GPIO_NUM_8;  // G3
      cfg.pin_d9  = GPIO_NUM_16; // G4
      cfg.pin_d10 = GPIO_NUM_1;  // G5
      
      cfg.pin_d11 = GPIO_NUM_14; // R0
      cfg.pin_d12 = GPIO_NUM_21; // R1
      cfg.pin_d13 = GPIO_NUM_47; // R2
      cfg.pin_d14 = GPIO_NUM_48; // R3
      cfg.pin_d15 = GPIO_NUM_45; // R4


      cfg.pin_henable = GPIO_NUM_41;
      cfg.pin_vsync   = GPIO_NUM_40;
      cfg.pin_hsync   = GPIO_NUM_39;
      cfg.pin_pclk    = GPIO_NUM_0;
      cfg.freq_write  = 15000000;


      cfg.hsync_polarity    = 0;
      cfg.hsync_front_porch = 40;
      cfg.hsync_pulse_width = 48;
      cfg.hsync_back_porch  = 40;
      
      cfg.vsync_polarity    = 0;
      cfg.vsync_front_porch = 1;
      cfg.vsync_pulse_width = 31;
      cfg.vsync_back_porch  = 13;


      cfg.pclk_active_neg   = 1;
      cfg.de_idle_high      = 0;
      cfg.pclk_idle_high    = 0;


      _bus_instance.config(cfg);
    }
            {
      auto cfg = _panel_instance.config();
      cfg.memory_width  = 800;
      cfg.memory_height = 480;
      cfg.panel_width  = 800;
      cfg.panel_height = 480;
      cfg.offset_x = 0;
      cfg.offset_y = 0;
      _panel_instance.config(cfg);
    }
    _panel_instance.setBus(&_bus_instance);
    setPanel(&_panel_instance);


  }
};




LGFX lcd;




/*******************************************************************************
   End of Arduino_GFX setting
 ******************************************************************************/

SM0PYH · February 29

Hi

Thanks for your answer.

I could not download the library LovyanGFX.zip

Broken link i think Best regards

https://forum.elecrow.com/uploads/122/JY9XJ2Z4TL5W.zip

Hugh_Mungus · March 1

Hey All,

I have the same issue as SM0PYH (7 inch screen as well), I downloaded the LovyanGFX included in the set of libraries that is on the tutorial page and none of the codes work. Now I get the following error:

base operand of '->' has non-pointer type 'LGFX'

lcd->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);

First I used the original code that said Arduino_GFX while the included library only contained an Adafruit_GFX. I sourced Arduino_GFX got the same error as SM0PYH.

I also tried the last method and failed in the above mentioned way.

Could someone please please help us out here?

My Code:

__________________________________________________________________________________________________________________________________________________________

#include <Wire.h>

#include <SPI.h>

#define LGFX_USE_V1

#include <LovyanGFX.hpp>

#include <lgfx/v1/platforms/esp32s3/Panel_RGB.hpp>

#include <lgfx/v1/platforms/esp32s3/Bus_RGB.hpp>

#define USE_UI //if you want to use the ui export from Squareline, please do not annotate this line.

#if defined USE_UI

#include <lvgl.h>

#include "ui.h"

#endif

#include <LovyanGFX.h>

#define TFT_BL 2

#define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin

class LGFX : public lgfx::LGFX_Device

{

public:

lgfx::Bus_RGB _bus_instance;

lgfx::Panel_RGB _panel_instance;

LGFX(void)

{

auto cfg = _bus_instance.config();

cfg.panel = &_panel_instance;

cfg.pin_d0 = GPIO_NUM_15; // B0

cfg.pin_d1 = GPIO_NUM_7; // B1

cfg.pin_d2 = GPIO_NUM_6; // B2

cfg.pin_d3 = GPIO_NUM_5; // B3

cfg.pin_d4 = GPIO_NUM_4; // B4

cfg.pin_d5 = GPIO_NUM_9; // G0

cfg.pin_d6 = GPIO_NUM_46; // G1

cfg.pin_d7 = GPIO_NUM_3; // G2

cfg.pin_d8 = GPIO_NUM_8; // G3

cfg.pin_d9 = GPIO_NUM_16; // G4

cfg.pin_d10 = GPIO_NUM_1; // G5

cfg.pin_d11 = GPIO_NUM_14; // R0

cfg.pin_d12 = GPIO_NUM_21; // R1

cfg.pin_d13 = GPIO_NUM_47; // R2

cfg.pin_d14 = GPIO_NUM_48; // R3

cfg.pin_d15 = GPIO_NUM_45; // R4

cfg.pin_henable = GPIO_NUM_41;

cfg.pin_vsync = GPIO_NUM_40;

cfg.pin_hsync = GPIO_NUM_39;

cfg.pin_pclk = GPIO_NUM_0;

cfg.freq_write = 15000000;

cfg.hsync_polarity = 0;

cfg.hsync_front_porch = 40;

cfg.hsync_pulse_width = 48;

cfg.hsync_back_porch = 40;

cfg.vsync_polarity = 0;

cfg.vsync_front_porch = 1;

cfg.vsync_pulse_width = 31;

cfg.vsync_back_porch = 13;

cfg.pclk_active_neg = 1;

cfg.de_idle_high = 0;

cfg.pclk_idle_high = 0;

_bus_instance.config(cfg);

}

{

auto cfg = _panel_instance.config();

cfg.memory_width = 800;

cfg.memory_height = 480;

cfg.panel_width = 800;

cfg.panel_height = 480;

cfg.offset_x = 0;

cfg.offset_y = 0;

_panel_instance.config(cfg);

}

_panel_instance.setBus(&_bus_instance);

setPanel(&_panel_instance);

}

};

LGFX lcd;

/*******************************************************************************

* Screen Driver Configuration end

*******************************************************************************/

/*******************************************************************************

Please config the touch panel in touch.h

******************************************************************************/

#include "touch.h"

#ifdef USE_UI

/* Change to your screen resolution */

static uint32_t screenWidth;

static uint32_t screenHeight;

static lv_disp_draw_buf_t draw_buf;

static lv_color_t disp_draw_buf[800 * 480 / 10]; //5,7inch: lv_color_t disp_draw_buf[800*480/10] 4.3inch: lv_color_t disp_draw_buf[480*272/10]

//static lv_color_t disp_draw_buf;

static lv_disp_drv_t disp_drv;

/* Display flushing */

void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)

{

uint32_t w = (area->x2 - area->x1 + 1);

uint32_t h = (area->y2 - area->y1 + 1);

#if (LV_COLOR_16_SWAP != 0)

lcd->draw16bitBeRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);

#else

lcd->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);

#endif

lv_disp_flush_ready(disp);

}

void my_touchpad_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)

{

if (touch_has_signal())

{

if (touch_touched())

{

data->state = LV_INDEV_STATE_PR;

/*Set the coordinates*/

data->point.x = touch_last_x;

data->point.y = touch_last_y;

Serial.print( "Data x :" );

Serial.println( touch_last_x );

Serial.print( "Data y :" );

Serial.println( touch_last_y );

}

else if (touch_released())

{

data->state = LV_INDEV_STATE_REL;

}

else

{

data->state = LV_INDEV_STATE_REL;

}

delay(15);

}

#endif

void setup()

{

Serial.begin(9600);

Serial.println("LVGL Widgets Demo");

#if defined(Display_50) || defined(Display_70)

//IO Port Pins

pinMode(38, OUTPUT);

digitalWrite(38, LOW);

pinMode(17, OUTPUT);

digitalWrite(17, LOW);

pinMode(18, OUTPUT);

digitalWrite(18, LOW);

pinMode(42, OUTPUT);

digitalWrite(42, LOW);

#elif defined(Display_43)

pinMode(20, OUTPUT);

digitalWrite(20, LOW);

pinMode(19, OUTPUT);

digitalWrite(19, LOW);

pinMode(35, OUTPUT);

digitalWrite(35, LOW);

pinMode(38, OUTPUT);

digitalWrite(38, LOW);

pinMode(0, OUTPUT);//TOUCH-CS

#endif

// Init Display

lcd->begin();

lcd->fillScreen(BLACK);

lcd->setTextSize(2);

delay(200);

#ifdef USE_UI

lv_init();

delay(100);

touch_init();

screenWidth = lcd->width();

screenHeight = lcd->height();

lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, screenWidth * screenHeight / 10);

// lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, 480 * 272 / 10);

/* Initialize the display */

lv_disp_drv_init(&disp_drv);

/* Change the following line to your display resolution */

disp_drv.hor_res = screenWidth;

disp_drv.ver_res = screenHeight;

disp_drv.flush_cb = my_disp_flush;

disp_drv.draw_buf = &draw_buf;

lv_disp_drv_register(&disp_drv);

/* Initialize the (dummy) input device driver */

static lv_indev_drv_t indev_drv;

lv_indev_drv_init(&indev_drv);

indev_drv.type = LV_INDEV_TYPE_POINTER;

indev_drv.read_cb = my_touchpad_read;

lv_indev_drv_register(&indev_drv);

#endif

#ifdef TFT_BL

pinMode(TFT_BL, OUTPUT);

digitalWrite(TFT_BL, HIGH);

#endif

#ifdef USE_UI

ui_init();//ui from Squareline or GUI Guider

#else

lcd->fillScreen(RED);

delay(800);

lcd->fillScreen(BLUE);

delay(800);

lcd->fillScreen(YELLOW);

delay(800);

lcd->fillScreen(GREEN);

delay(800);

#endif

Serial.println( "Setup done" );

}

void loop()

{

while(1)

{

#ifdef USE_UI

lv_timer_handler();

delay(5);

#endif

}

__________________________________________________________________________________________________________________________________________________________

Error message:

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino: In function 'void my_disp_flush(lv_disp_drv_t*, const lv_area_t*, lv_color_t*)':

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:133:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);

^~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino: In function 'void setup()':

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:197:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->begin();

^~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:198:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->fillScreen(BLACK);

^~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:198:19: error: 'BLACK' was not declared in this scope

lcd->fillScreen(BLACK);

^~~~~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:199:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->setTextSize(2);

^~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:208:20: error: base operand of '->' has non-pointer type 'LGFX'

screenWidth = lcd->width();

^~

C:\Users\HughMungus\Documents\Arduino\7inch_display\Demo\Demo.ino:209:21: error: base operand of '->' has non-pointer type 'LGFX'

screenHeight = lcd->height();

^~

exit status 1

Compilation error: base operand of '->' has non-pointer type 'LGFX'

Thanks for the help in advanced!

Elecrow · March 1

Hello,

Sorry for the broken link. You can install the library by opening the Library Manager in Arduino IDE, and searching for "LovyanGFX". Then click "install".

SM0PYH · March 1

Hi

Thanks for your effort.

Using LovyanGFX version 1.1.12

I got the same error as Hugh_Mungus

Could you please make a copy of the demofile and make the changes you suggest, compile and publish the code for us.

https://github.com/Elecrow-RD/esp32-display/blob/master/7.0/3%E3%80%81arduino/7.0-inch_Squareline_Demo/7.0-inch_Squareline_Demo.ino

//Hans

Error In file included from C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:98:

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\touch.h: In function 'bool touch_touched()':

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\touch.h:168:74: error: base operand of '->' has non-pointer type 'LGFX'

touch_last_x = map(ts.points[0].x, TOUCH_MAP_X1, TOUCH_MAP_X2, 0, lcd->width() - 1);

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\touch.h:169:74: error: base operand of '->' has non-pointer type 'LGFX'

touch_last_y = map(ts.points[0].y, TOUCH_MAP_Y1, TOUCH_MAP_Y2, 0, lcd->height() - 1);

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino: In function 'void my_disp_flush(lv_disp_drv_t*, const lv_area_t*, lv_color_t*)':

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:118:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino: In function 'void setup()':

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:170:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->begin();

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:171:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->fillScreen(BLACK);

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:171:19: error: 'BLACK' was not declared in this scope

lcd->fillScreen(BLACK);

^~~~~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:172:6: error: base operand of '->' has non-pointer type 'LGFX'

lcd->setTextSize(2);

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:181:20: error: base operand of '->' has non-pointer type 'LGFX'

screenWidth = lcd->width();

^~

C:\Users\habr\Desktop\Arduino Projekts\Ny 7 Demo\ESP32_Display_Squareline_Demo\ESP32_Display_Squareline_Demo.ino:182:21: error: base operand of '->' has non-pointer type 'LGFX'

screenHeight = lcd->height();

^~

Multiple libraries were found for "Wire.h"

Used: C:\Users\habr\Desktop\Arduino Projekts\Libraries\Wire

Not used: C:\Users\habr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire

Multiple libraries were found for "SPI.h"

Used: C:\Users\habr\Desktop\Arduino Projekts\Libraries\SPI

Not used: C:\Users\habr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\SPI

exit status 1

Compilation error: base operand of '->' has non-pointer type 'LGFX'

Elecrow · March 5

Hello,

The "->" needs to be changed to ".", and the color need to add TFT_

For example, " lcd->fillScreen(BLACK);" change to "lcd.fillScreen(TFT_BLACK);"

szeller · March 12

Is there an updated 7.0" espif demo? This did not fix my issue. The code compiles and builds but faults and the display reboots.

Core  0 register dump:
PC      : 0x42007c75  PS      : 0x00060f30  A0      : 0x82056597  A1      : 0x3fcf3c70
A2      : 0x3fc9a1c8  A3      : 0x3fcaebd4  A4      : 0x00000001  A5      : 0x00000001
A6      : 0x02c9a110  A7      : 0x00ffffff  A8      : 0x00000000  A9      : 0x3fcf3c50
A10     : 0x00000000  A11     : 0x00000001  A12     : 0x42054efc  A13     : 0x0000002c
A14     : 0x0000002b  A15     : 0x00000000  SAR     : 0x00000010  EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000012  LBEG    : 0x400570e8  LEND    : 0x400570f3  LCOUNT  : 0x00000000

New 7" Display

Comments