Cannot get display to show any example code

[Skytek65]

I got my board from here:https://www.aliexpress.com/item/32992515344.html?spm=a2g0s.9042311.0.0.56594c4dbTEGkd And here is the data sheet showing the pin out, and below is my user setup.h file. If anyone can assist with me getting this display up and running that'd be awesome, seems like such a cool little board.

define ILI9341_DRIVER

define TFT_MISO 2

define TFT_MOSI 15

define TFT_SCLK 18

define TFT_CS 27

define TFT_DC 32

define TFT_RST 05

define LOAD_GLCD

define LOAD_FONT2

define LOAD_FONT4

define LOAD_FONT6

define LOAD_FONT7

define LOAD_FONT8

define LOAD_GFXFF

define SMOOTH_FONT

define SPI_FREQUENCY 40000000 // Maximum for ILI9341

[dronecz]

HI @Skytek65,

your LCD is on second SPI bus so you have to change your settings accordingly:

define TFT_MISO 2 -> 23

define TFT_MOSI 15 -> 12

Let us know if it works ;)

[Skytek65]

Tried that in the User-Setup.h file sadly still no dice. Here is the example program I'm trying to run, and here is another output from the read user setup test program.

TFT_Pie_Chart

`#include // Hardware-specific library

include

TFT_eSPI tft = TFT_eSPI(); // Invoke custom library

define DEG2RAD 0.0174532925

byte inc = 0; unsigned int col = 0;

void setup(void) { tft.begin();

tft.setRotation(1);

tft.fillScreen(TFT_BLACK); }

void loop() {

// Draw 4 pie chart segments fillSegment(160, 120, 0, 60, 100, TFT_RED); fillSegment(160, 120, 60, 30, 100, TFT_GREEN); fillSegment(160, 120, 60 + 30, 120, 100, TFT_BLUE); fillSegment(160, 120, 60 + 30 + 120, 150, 100, TFT_YELLOW);

delay(4000);

// Erase old chart with 360 degree black plot fillSegment(160, 120, 0, 360, 100, TFT_BLACK); }

// ######################################################################### // Draw circle segments // #########################################################################

// x,y == coords of centre of circle // start_angle = 0 - 359 // sub_angle = 0 - 360 = subtended angle // r = radius // colour = 16 bit colour value

int fillSegment(int x, int y, int start_angle, int sub_angle, int r, unsigned int colour) { // Calculate first pair of coordinates for segment start float sx = cos((start_angle - 90) DEG2RAD); float sy = sin((start_angle - 90) DEG2RAD); uint16_t x1 = sx r + x; uint16_t y1 = sy r + y;

// Draw colour blocks every inc degrees for (int i = start_angle; i < start_angle + sub_angle; i++) {

// Calculate pair of coordinates for segment end
int x2 = cos((i + 1 - 90) * DEG2RAD) * r + x;
int y2 = sin((i + 1 - 90) * DEG2RAD) * r + y;

tft.fillTriangle(x1, y1, x2, y2, x, y, colour);

// Copy segment end to sgement start for next segment
x1 = x2;
y1 = y2;

} }

// ######################################################################### // Return the 16 bit colour with brightness 0-100% // ######################################################################### unsigned int brightness(unsigned int colour, int brightness) { byte red = colour >> 11; byte green = (colour & 0x7E0) >> 5; byte blue = colour & 0x1F;

blue = (blue brightness)/100; green = (green brightness)/100; red = (red * brightness)/100;

return (red << 11) + (green << 5) + blue; } ` ###############

Read User Setup

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1216 ho 0 tail 12 room 4 load:0x40078000,len:10944 load:0x40080400,len:6388 entry 0x400806b4

[code] TFT_eSPI ver = 2.3.61 Processor = ESP32 Frequency = 240MHz Transactions = Yes Interface = SPI Display driver = 9341 Display width = 240 Display height = 320

MOSI = GPIO 12 MISO = GPIO 23 SCK = GPIO 18 TFT_CS = GPIO 27 TFT_DC = GPIO 32 TFT_RST = GPIO 5

Font GLCD loaded Font 2 loaded Font 4 loaded Font 6 loaded Font 7 loaded Font 8 loaded Smooth font enabled

Display SPI frequency = 40.00 [/code] ##################

[dronecz]

Did you try to swap MISO & MOSI pins?

[Bodmer]

The MOSI line should connect to the display SDI and MISO to SDO. Correct setup for these pins is therefore:

define TFT_MISO 12

define TFT_MOSI 23

[Bodmer]

There is a ready made setup file in the Users_Setups.h folder called Setup22_TTGO_T4_v1.3.h, use that as it includes the back light pin as well.

[Bodmer]

FYI here is the setup

[Skytek65]

You are the man, appreciate the help and am excited to start working with this!