Another CYD issue (ESP32-2432S024C) [Solved]

Other Hardware Displays
1

Hi,

I cannot get my display to work so, I appreciate some guidance.

My Micropython code works which tells me the display is healthy. The pinout used in the code is:

IO Pins
     0   Digital   Boot Button
     1   Digital   Connector P1 & USB Chip          - TX
     2   Digital   Display                          - TFT_RS / TFT_DC
     3   Digital   Connector P1 & USB Chip          - RX
     4   Digital   RGB LED                          - Red
     5   Digital   SD Card                          - TF_CS [VSPI]
     6   Digital   Not Connected
     7   Digital   Not Connected
     8   Digital   Not Connected
     9   Digital   Not Connected
    10   Digital   Not Connected
    11   Digital   Not Connected
    12   Digital   Display                          - TFT_SDO / TFT_MISO [HSPI]
    13   Digital   Display                          - TFT_SDI / TFT_MOSI [HSPI]
    14   Digital   Display                          - TFT_SCK [HSPI]
    15   Digital   Display                          - TFT_CS [HSPI]
    16   Digital   RGB LED                          - Green
    17   Digital   RGB LED                          - Blue
    18   Digital   SD Card                          - SCK [VSPI]
    19   Digital   SD Card                          - MISO [VSPI]
    21   Digital   Touch CST820, Connector P3 & CN1 - CTP_INT / I2C SDA
    22   Digital   Connector P3 & CN1               - I2C SCL
    23   Digital   SD Card                          - MOSI [VSPI]
    25   Digital   Touch CST820                     - CTP_RST
    26   Analog    Speaker                          - !!!Speaker ONLY! Connected to Amp!!!
    27   Digital   Display                          - TFT_BL (BackLight)
    32   Digital   Touch CST820                     - CTP_SCL
    33   Digital   Touch CST820                     - CTP_SDA
    34   Analog    LDR Light Sensor                 - !!!Input ONLY!!!
    35   Digital   P3 Connector                     - !!!Input ONLY w/ NO pull-ups!!!
    36   Digital   Not Connected
    39   Digital   Not Connected

and the equivalent used in "User_setup.h" is:

#define ILI9341_2_DRIVER
#define TFT_WIDTH  240
#define TFT_HEIGHT 320
#define TFT_BL   27            // LED back-light control pin
#define TFT_BACKLIGHT_ON HIGH  // Level to turn ON back-light (HIGH or LOW)
#define TFT_MISO 12
#define TFT_MOSI 13
#define TFT_SCLK 14
#define TFT_CS   15  // Chip select control pin
#define TFT_DC    2  // Data Command control pin
//#define TFT_RST   4  // Reset pin (could connect to RST pin)
#define TFT_RST  -1  // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST

With that I'm not able to get a TFT_eSPI basic example to run. I get no errors and the display does turn on (WHITE) but, beside that, nothing happens.

I'm sure the problem is getting the right pinout in the user setup file.

TIA

2

Try enabling the following in your User_Setup.h:

// The ESP32 has 2 free SPI ports i.e. VSPI and HSPI, the VSPI is the default.
// If the VSPI port is in use and pins are not accessible (e.g. TTGO T-Beam)
// then uncomment the following line:
#define USE_HSPI_PORT

Edit: Mine is 2432S028R and I need the above.

3

It was enabled so, I commented it to no glory. I'm now playing with frequencies but I'm not getting anywhere. Thank you!

4

So, I finally got it working!!
These are the settings in the User_Setup.h file:

#define ILI9341_DRIVER       // Generic driver for common displays
#define TFT_WIDTH  240
#define TFT_HEIGHT 320 // ST7789 240 x 320
#define TFT_BL   27            // LED back-light control pin
#define TFT_BACKLIGHT_ON HIGH  // Level to turn ON back-light (HIGH or LOW)

#define ESP32_DMA
#define TFT_MISO 12
#define TFT_MOSI 13 // In some display driver board, it might be written as "SDA" and so on.
#define TFT_SCLK 14
#define TFT_CS   15  // Chip select control pin
#define TFT_DC   2  // Data Command control pin
#define TFT_RST  -1  // Reset pin (could connect to Arduino RESET pin)
#define TFT_BL   27  // LED back-light
#define TOUCH_CS 33     // Chip select pin (T_CS) of touch screen

#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
#define SMOOTH_FONT

#define SPI_FREQUENCY  80000000
#define SPI_READ_FREQUENCY  80000000
#define SPI_TOUCH_FREQUENCY  2500000  //2500000

Also, the selection under the ESP32 should be:

Flash mode: "DIO"

5

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