ST7701s ESP32 , colors are not displayed correctly #535

ViperKloot · 2024-09-10T09:10:44Z

ViperKloot
Sep 10, 2024

Hi, can someone help me with this setup.. Skecth is working but RED Color is missing ... i see only blue and green colors. (display is a round 2.8inch).

`
#include <Arduino_GFX_Library.h>
#define GFX_BL -1
Arduino_DataBus bus = new Arduino_SWSPI(
GFX_NOT_DEFINED / DC /, 42 / CS /,
2 / SCK /, 1 / MOSI /, GFX_NOT_DEFINED / MISO */);

/* More dev device declaration: https://github.com/moononournation/Arduino_GFX/wiki/Dev-Device-Declaration */
#if defined(DISPLAY_DEV_KIT)
Arduino_GFX gfx = create_default_Arduino_GFX();
#else / !defined(DISPLAY_DEV_KIT) */

Arduino_ESP32RGBPanel rgbpanel = new Arduino_ESP32RGBPanel(
40 / DE /, 39 / VSYNC /, 38 / HSYNC /, 41 / PCLK /,
46 / R0 /, 3 / R1 /, 8 / R2 /, 18 / R3 /, 17 / R4 /,
14 / G0 /, 13 / G1 /, 12 / G2 /, 11 / G3 /, 10 / G4 /, 9 / G5 /,
5 / B0 /, 45 / B1 /, 48 / B2 /, 47 / B3 /, 21 / B4 /,
1 / hsync_polarity /, 22 / hsync_front_porch /, 3 / hsync_pulse_width /, 45 / hsync_back_porch /,
1 / vsync_polarity /, 4 / vsync_front_porch /, 12 / vsync_pulse_width /, 40 / vsync_back_porch */);
Arduino_RGB_Display gfx = new Arduino_RGB_Display(
480 / width /, 480 / height /, rgbpanel, 0 / rotation /, true / auto_flush /,
bus, GFX_NOT_DEFINED / RST */, st7701_type6_init_operations, sizeof(st7701_type6_init_operations));

#endif /* !defined(DISPLAY_DEV_KIT) /
/******************************************************************************

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

void setup(void)
{
Serial.begin(115200);
// Serial.setDebugOutput(true);
// while(!Serial);
Serial.println("Arduino_GFX Hello World example");

#ifdef GFX_EXTRA_PRE_INIT
GFX_EXTRA_PRE_INIT();
#endif

// Init Display
if (!gfx->begin())
{
Serial.println("gfx->begin() failed!");
}
gfx->fillScreen(RED);

#ifdef GFX_BL
pinMode(GFX_BL, OUTPUT);
digitalWrite(GFX_BL, HIGH);
#endif

gfx->setCursor(10, 10);
gfx->setTextColor(RED);
gfx->println("Hello World!");

delay(5000); // 5 seconds
}

void loop()
{
gfx->setCursor(random(gfx->width()), random(gfx->height()));
gfx->setTextColor(random(0xffff), random(0xffff));
gfx->setTextSize(random(6) /* x scale /, random(6) / y scale /, random(2) / pixel_margin */);
gfx->println("Hello World!");

delay(1000); // 1 second
}`

ViperKloot · 2024-09-11T07:50:30Z

ViperKloot
Sep 11, 2024
Author

Can someone help me please ? What am i doing wrong ? See the result in photo.
Colors are not displayed correctly.

Thank you.

0 replies

ViperKloot · 2024-09-11T07:52:14Z

ViperKloot
Sep 11, 2024
Author

`
#include <Arduino_GFX_Library.h>
#define GFX_BL -1 // default backlight pin, you may replace DF_GFX_BL to actual backlight pin
Arduino_DataBus *bus = new Arduino_SWSPI(GFX_NOT_DEFINED, 42, 2, 1, GFX_NOT_DEFINED);
//Arduino_DataBus bus = new Arduino_SWSPI(8 / DC /, 9 / CS /, 13 / SCK /, 11 / MOSI /, GFX_NOT_DEFINED / MISO */);
Arduino_ESP32RGBPanel rgbpanel = new Arduino_ESP32RGBPanel(
40 / DE /, 39 / VSYNC /, 38 / HSYNC /, 41 / PCLK /,
46 / R0 /, 3 / R1 /, 8 / R2 /, 18 / R3 /, 17 / R4 /,
14 / G0 /, 13 / G1 /, 12 / G2 /, 11 / G3 /, 10 / G4 /, 9 / G5 /,
5 / B0 /, 45 / B1 /, 48 / B2 /, 47 / B3 /, 21 / B4 /,
1 / hsync_polarity /, 22 / hsync_front_porch /, 24 / hsync_pulse_width /, 6 / hsync_back_porch /,
1 / vsync_polarity /, 16 / vsync_front_porch /, 4 / vsync_pulse_width /, 10 / vsync_back_porch */);

Arduino_RGB_Display gfx = new Arduino_RGB_Display(
480 / width /, 480 / height /, rgbpanel, 0 / rotation /, true / auto_flush /,
bus, GFX_NOT_DEFINED / RST */, st7701_type6_init_operations, sizeof(st7701_type6_init_operations));

/* !defined(DISPLAY_DEV_KIT) /
/******************************************************************************

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

void setup(void) {
Serial.begin(115200);
// Serial.setDebugOutput(true);
// while(!Serial);
Serial.println("Arduino_GFX Hello World example");

#ifdef GFX_EXTRA_PRE_INIT
GFX_EXTRA_PRE_INIT();
#endif

// Init Display
if (!gfx->begin()) {
Serial.println("gfx->begin() failed!");
}
gfx->fillScreen(BLACK);

#ifdef GFX_BL
pinMode(GFX_BL, OUTPUT);
digitalWrite(GFX_BL, HIGH);
#endif

gfx->setCursor(150, 150);
gfx->setTextSize(2);
gfx->setTextColor(RED);
gfx->println("Hello World! in RED");
gfx->setCursor(150, 180);
gfx->setTextColor(BLUE);
gfx->println("Hello World! in BLUE");
gfx->setCursor(150, 210);
gfx->setTextColor(GREEN);
gfx->println("Hello World! in GREEN");
gfx->setCursor(150, 240);
gfx->setTextColor(YELLOW);
gfx->println("Hello World! in YELLOW");

//delay(5000); // 5 seconds
}

void loop() {
// gfx->setCursor(random(gfx->width()), random(gfx->height()));
// gfx->setTextColor(random(0xffff), random(0xffff));
// gfx->setTextSize(random(6) /* x scale /, random(6) / y scale /, random(2) / pixel_margin */);
// gfx->println("Hello World!");

// delay(1000); // 1 second
}`

0 replies

jfseaman · 2024-09-19T03:21:36Z

jfseaman
Sep 19, 2024

I have noticed that "GREEN" with that display is not very green.

0 replies

jfseaman · 2024-09-19T03:23:51Z

jfseaman
Sep 19, 2024

I have the square display that works with the installed software. ST7701_type1 in GFX

I saved a copy as a bin file.

I can't get my other shetches to work yet.

6 replies

jfseaman Sep 19, 2024

After weeks of testing i finally managed to get it working as it should.

Is that last listing your settings?

ViperKloot Sep 20, 2024
Author

`static const uint8_t st7701_type6_init_operations[] = {
BEGIN_WRITE,

WRITE_COMMAND_8, 0xFF,
WRITE_BYTES, 5, 0x77, 0x01, 0x00, 0x00, 0x13,

WRITE_C8_D8, 0xEF, 0x08,

WRITE_COMMAND_8, 0xFF,
WRITE_BYTES, 5, 0x77, 0x01, 0x00, 0x00, 0x10,

WRITE_C8_D16, 0xC0, 0x3B, 0x00,
WRITE_C8_D16, 0xC1, 0x10, 0x0C,
WRITE_C8_D16, 0xC2, 0x07, 0x0A,
WRITE_C8_D8, 0xC7, 0x00,
WRITE_C8_D8, 0xC7, 0x10,
WRITE_C8_D8, 0xCD, 0x08,

WRITE_COMMAND_8, 0xB0, // Positive Voltage Gamma Control
WRITE_BYTES, 16,
0x05, 0x12, 0x98, 0x0e, 0x0F,
0x07, 0x07, 0x09, 0x09, 0x23,
0x05, 0x52, 0x0F, 0x67, 0x2C,
0x11,



WRITE_COMMAND_8, 0xB1, // Negative Voltage Gamma Control
WRITE_BYTES, 16,
0x0B, 0x11, 0x97, 0x0C, 0x12,
0x06, 0x06, 0x08, 0x08, 0x22,
0x03, 0x51, 0x11, 0x66, 0x2B,
0x0F,

WRITE_COMMAND_8, 0xFF,
WRITE_BYTES, 5, 0x77, 0x01, 0x00, 0x00, 0x11,

WRITE_C8_D8, 0xB0, 0x5D,
WRITE_C8_D8, 0xB1, 0x2D,
WRITE_C8_D8, 0xB2, 0x81,
WRITE_C8_D8, 0xB3, 0x80,
WRITE_C8_D8, 0xB5, 0x4E,
WRITE_C8_D8, 0xB7, 0x85,
WRITE_C8_D8, 0xB8, 0x20,
WRITE_C8_D8, 0xC1, 0x78,
WRITE_C8_D8, 0xC2, 0x78,

WRITE_C8_D8, 0xD0, 0x88,

WRITE_COMMAND_8, 0xE0,
WRITE_BYTES, 4,
0x00, 0x00, 0x02,

WRITE_COMMAND_8, 0xE1,
WRITE_BYTES, 16,
0x06, 0x30, 0x08, 0x30, 0x05,
0x30, 0x07, 0x30, 0x00, 0x33,
0x33,

WRITE_COMMAND_8, 0xE2,
WRITE_BYTES, 16,
0x11, 0x11, 0x33, 0x33, 0xf4,
0x00, 0x00, 0x00, 0xf4, 0x00,
0x00, 0x00,

WRITE_COMMAND_8, 0xE3,
WRITE_BYTES, 4, 0x00, 0x00, 0x11, 0x11,

WRITE_C8_D16, 0xE4, 0x44, 0x44,

WRITE_COMMAND_8, 0xE5,
WRITE_BYTES, 16,
0x0d, 0xf5, 0x30, 0xf0, 0x0f,
0xf7, 0x30, 0xf0, 0x09, 0xf1,
0x30, 0xf0, 0x0b, 0xf3, 0x30, 0xf0,

WRITE_COMMAND_8, 0xE6,
WRITE_BYTES, 4, 0x00, 0x00, 0x11, 0x11,

WRITE_C8_D16, 0xE7, 0x44, 0x44,

WRITE_COMMAND_8, 0xE8,
WRITE_BYTES, 16,
0x0c, 0xf4, 0x30, 0xf0,
0x0e, 0xf6, 0x30, 0xf0,
0x08, 0xf0, 0x30, 0xf0,
0x0a, 0xf2, 0x30, 0xf0,

WRITE_C8_D8, 0xe9, 0x36,

WRITE_COMMAND_8, 0xEB,
WRITE_BYTES, 7,
0x00, 0x01, 0xe4, 0xe4,
0x44, 0x88, 0x40,

WRITE_COMMAND_8, 0xED,
WRITE_BYTES, 16,
0xff, 0x10, 0xaf, 0x76,
0x54, 0x2b, 0xcf, 0xff,
0xff, 0xfc, 0xb2, 0x45,
0x67, 0xfa, 0x01, 0xff,

WRITE_COMMAND_8, 0xEF,
WRITE_BYTES, 6,
0x08, 0x08, 0x08, 0x45,
0x3f, 0x54,

WRITE_COMMAND_8, 0xFF,
WRITE_BYTES, 5, 0x77, 0x01, 0x00, 0x00, 0x00,

WRITE_COMMAND_8, 0x11, // Sleep Out
END_WRITE,

DELAY, 150,

BEGIN_WRITE,
WRITE_C8_D8, 0x3A, 0x66,
WRITE_C8_D8, 0x36, 0x08,
WRITE_C8_D8, 0x35, 0x00,
WRITE_COMMAND_8, 0x29, // Display On
END_WRITE,
DELAY, 20

};
`

ViperKloot Sep 20, 2024
Author

`#include` <Arduino_GFX_Library.h>

Arduino_DataBus *bus = new Arduino_SWSPI(GFX_NOT_DEFINED, 42, 2, 1, GFX_NOT_DEFINED);

Arduino_ESP32RGBPanel *rgbpanel = new Arduino_ESP32RGBPanel(
  40 /* DE */, 39 /* VSYNC */, 38 /* HSYNC */, 41 /* PCLK */,
  5 /* R0 */, 45 /* R1 */, 48 /* R2 */, 47 /* R3 */, 21 /* R4 */,
  14 /* G0 */, 13 /* G1 */, 12 /* G2 */, 11 /* G3 */, 10 /* G4 */, 9 /* G5 */,
  46 /* B0 */, 3 /* B1 */, 8 /* B2 */, 18 /* B3 */, 17 /* B4 */,
  1 /* hsync_polarity */, 22 /* hsync_front_porch */, 24 /* hsync_pulse_width */, 6 /* hsync_back_porch */,
  1 /* vsync_polarity */, 16 /* vsync_front_porch */, 4 /* vsync_pulse_width */, 10 /* vsync_back_porch */);


Arduino_RGB_Display *gfx = new Arduino_RGB_Display(
  480 /* width */, 480 /* height */, rgbpanel, 0 /* rotation */, true /* auto_flush */,
  bus, GFX_NOT_DEFINED /* RST */, st7701_type6_init_operations, sizeof(st7701_type6_init_operations));


void setup(void) {
  Serial.begin(115200);

  Serial.println("Arduino_GFX Hello World example");
  gfx->invertDisplay(2);
#ifdef GFX_EXTRA_PRE_INIT
  GFX_EXTRA_PRE_INIT();
#endif

  if (!gfx->begin()) {
    Serial.println("gfx->begin() failed!");
  }
  gfx->fillScreen(BLACK);

#ifdef GFX_BL
  pinMode(GFX_BL, OUTPUT);
  digitalWrite(GFX_BL, HIGH);
#endif

  gfx->setCursor(150, 150);
  gfx->setTextSize(2);
  gfx->setTextColor(RED);
  gfx->println("Hello World! in RED");
  gfx->setCursor(150, 180);
  gfx->setTextColor(BLUE);
  gfx->println("Hello World! in BLUE");
  gfx->setCursor(150, 210);
  gfx->setTextColor(GREEN);
  gfx->println("Hello World! in GREEN");
  gfx->setCursor(150, 240);
  gfx->setTextColor(YELLOW);
  gfx->println("Hello World! in YELLOW");
  delay(5000);  // 5 seconds
    gfx->fillScreen(BLACK);
}

void loop() {
  gfx->setCursor(random(gfx->width()), random(gfx->height()));
  gfx->setTextColor(random(0xffff), random(0xffff));
  gfx->setTextSize(random(6) /* x scale */, random(6) /* y scale */, random(2) /* pixel_margin */);
  gfx->println("Hello World!");

  delay(1000); // 1 second
}`

ViperKloot Sep 20, 2024
Author

This works for me as it should.

jfseaman Sep 20, 2024

Thank you.

showdown · 2024-09-26T01:49:28Z

showdown
Sep 26, 2024

Hi, I'm trying to get a round 2.8 screen up and running with the ESP LCD board. My screen and board are identical to yours but the code doesn't compile. I get this error:

error: 'DE' was not declared in this scope

Any thoughts?

3 replies

ViperKloot Sep 26, 2024
Author

HelloWorldroundworking.zip

Code is not formated correctly .. try file in attachement.

showdown Sep 26, 2024

Awesome, code compiles perfectly, thanks!!

Having trouble connecting to the board itself- I keep getting fatal errors. This is my first ESP board and I'm reading that I have to push the boot or reset button during upload...? Any tips on your setup, what settings did you have in IDE to get it to upload?

ViperKloot Sep 26, 2024
Author

use Esp Boardmanager V2.0.17
push and hold BOOT while pushing (short) RESET ... then upload Code
Board settings in IDE :
USB CDC on Boot : Enabled
Flashsize: 8MB (64MB)
PSRAM : OPIPSRAM

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ST7701s ESP32 , colors are not displayed correctly #535

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ST7701s ESP32 , colors are not displayed correctly #535

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