r/arduino • u/Jannic7 • 8d ago
Software Help MCU"ESP32-S3 DevKitC-1 N16R8 Modul" with Display "3.5inch SPI Module ILI9488 SKU:MSP3520".
Hi,
I want to use an MCU"ESP32-S3 DevKitC-1 N16R8 Modul" with Display "3.5inch SPI Module ILI9488 SKU:MSP3520".
Used library: https://github.com/Bodmer/TFT_eSPI
Unfortunately it didn't work.
Display light was on, it was visible bright, but no text, no colour.
It doesn't matter which program I uploaded.
Current Program:
/*
Adapted from the Adafruit graphicstest sketch, see original header at end
of sketch.
This sketch uses the GLCD font (font 1) only.
Make sure all the display driver and pin connections are correct by
editing the User_Setup.h file in the TFT_eSPI library folder.
#########################################################################
###### DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY ######
#########################################################################
*/
#include "SPI.h"
#include "TFT_eSPI.h"
TFT_eSPI tft = TFT_eSPI();
unsigned long total = 0;
unsigned long tn = 0;
void setup() {
Serial.begin(9600);
while (!Serial);
Serial.println(""); Serial.println("");
Serial.println("TFT_eSPI library test!");
tft.init();
tn = micros();
tft.fillScreen(TFT_BLACK);
yield(); Serial.println(F("Benchmark Time (microseconds)"));
yield(); Serial.print(F("Screen fill "));
yield(); Serial.println(testFillScreen());
//total+=testFillScreen();
//delay(500);
yield(); Serial.print(F("Text "));
yield(); Serial.println(testText());
//total+=testText();
//delay(3000);
yield(); Serial.print(F("Lines "));
yield(); Serial.println(testLines(TFT_CYAN));
//total+=testLines(TFT_CYAN);
//delay(500);
yield(); Serial.print(F("Horiz/Vert Lines "));
yield(); Serial.println(testFastLines(TFT_RED, TFT_BLUE));
//total+=testFastLines(TFT_RED, TFT_BLUE);
//delay(500);
yield(); Serial.print(F("Rectangles (outline) "));
yield(); Serial.println(testRects(TFT_GREEN));
//total+=testRects(TFT_GREEN);
//delay(500);
yield(); Serial.print(F("Rectangles (filled) "));
yield(); Serial.println(testFilledRects(TFT_YELLOW, TFT_MAGENTA));
//total+=testFilledRects(TFT_YELLOW, TFT_MAGENTA);
//delay(500);
yield(); Serial.print(F("Circles (filled) "));
yield(); Serial.println(testFilledCircles(10, TFT_MAGENTA));
//total+= testFilledCircles(10, TFT_MAGENTA);
yield(); Serial.print(F("Circles (outline) "));
yield(); Serial.println(testCircles(10, TFT_WHITE));
//total+=testCircles(10, TFT_WHITE);
//delay(500);
yield(); Serial.print(F("Triangles (outline) "));
yield(); Serial.println(testTriangles());
//total+=testTriangles();
//delay(500);
yield(); Serial.print(F("Triangles (filled) "));
yield(); Serial.println(testFilledTriangles());
//total += testFilledTriangles();
//delay(500);
yield(); Serial.print(F("Rounded rects (outline) "));
yield(); Serial.println(testRoundRects());
//total+=testRoundRects();
//delay(500);
yield(); Serial.print(F("Rounded rects (filled) "));
yield(); Serial.println(testFilledRoundRects());
//total+=testFilledRoundRects();
//delay(500);
yield(); Serial.println(F("Done!")); yield();
//Serial.print(F("Total = ")); Serial.println(total);
//yield();Serial.println(millis()-tn);
}
void loop(void) {
for (uint8_t rotation = 0; rotation < 4; rotation++) {
tft.setRotation(rotation);
testText();
delay(2000);
}
}
unsigned long testFillScreen() {
unsigned long start = micros();
tft.fillScreen(TFT_BLACK);
tft.fillScreen(TFT_RED);
tft.fillScreen(TFT_GREEN);
tft.fillScreen(TFT_BLUE);
tft.fillScreen(TFT_BLACK);
return micros() - start;
}
unsigned long testText() {
tft.fillScreen(TFT_BLACK);
unsigned long start = micros();
tft.setCursor(0, 0);
tft.setTextColor(TFT_WHITE); tft.setTextSize(1);
tft.println("Hello World!");
tft.setTextColor(TFT_YELLOW); tft.setTextSize(2);
tft.println(1234.56);
tft.setTextColor(TFT_RED); tft.setTextSize(3);
tft.println(0xDEADBEEF, HEX);
tft.println();
tft.setTextColor(TFT_GREEN);
tft.setTextSize(5);
tft.println("Groop");
tft.setTextSize(2);
tft.println("I implore thee,");
//tft.setTextColor(TFT_GREEN,TFT_BLACK);
tft.setTextSize(1);
tft.println("my foonting turlingdromes.");
tft.println("And hooptiously drangle me");
tft.println("with crinkly bindlewurdles,");
tft.println("Or I will rend thee");
tft.println("in the gobberwarts");
tft.println("with my blurglecruncheon,");
tft.println("see if I don't!");
return micros() - start;
}
unsigned long testLines(uint16_t color) {
unsigned long start, t;
int x1, y1, x2, y2,
w = tft.width(),
h = tft.height();
tft.fillScreen(TFT_BLACK);
x1 = y1 = 0;
y2 = h - 1;
start = micros();
for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
x2 = w - 1;
for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
t = micros() - start; // fillScreen doesn't count against timing
yield();
tft.fillScreen(TFT_BLACK);
x1 = w - 1;
y1 = 0;
y2 = h - 1;
start = micros();
for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
x2 = 0;
for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
t += micros() - start;
yield();
tft.fillScreen(TFT_BLACK);
x1 = 0;
y1 = h - 1;
y2 = 0;
start = micros();
for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
x2 = w - 1;
for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
t += micros() - start;
yield();
tft.fillScreen(TFT_BLACK);
x1 = w - 1;
y1 = h - 1;
y2 = 0;
start = micros();
for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
x2 = 0;
for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
yield();
return micros() - start;
}
unsigned long testFastLines(uint16_t color1, uint16_t color2) {
unsigned long start;
int x, y, w = tft.width(), h = tft.height();
tft.fillScreen(TFT_BLACK);
start = micros();
for (y = 0; y < h; y += 5) tft.drawFastHLine(0, y, w, color1);
for (x = 0; x < w; x += 5) tft.drawFastVLine(x, 0, h, color2);
return micros() - start;
}
unsigned long testRects(uint16_t color) {
unsigned long start;
int n, i, i2,
cx = tft.width() / 2,
cy = tft.height() / 2;
tft.fillScreen(TFT_BLACK);
n = min(tft.width(), tft.height());
start = micros();
for (i = 2; i < n; i += 6) {
i2 = i / 2;
tft.drawRect(cx - i2, cy - i2, i, i, color);
}
return micros() - start;
}
unsigned long testFilledRects(uint16_t color1, uint16_t color2) {
unsigned long start, t = 0;
int n, i, i2,
cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(TFT_BLACK);
n = min(tft.width(), tft.height());
for (i = n - 1; i > 0; i -= 6) {
i2 = i / 2;
start = micros();
tft.fillRect(cx - i2, cy - i2, i, i, color1);
t += micros() - start;
// Outlines are not included in timing results
tft.drawRect(cx - i2, cy - i2, i, i, color2);
}
return t;
}
unsigned long testFilledCircles(uint8_t radius, uint16_t color) {
unsigned long start;
int x, y, w = tft.width(), h = tft.height(), r2 = radius * 2;
tft.fillScreen(TFT_BLACK);
start = micros();
for (x = radius; x < w; x += r2) {
for (y = radius; y < h; y += r2) {
tft.fillCircle(x, y, radius, color);
}
}
return micros() - start;
}
unsigned long testCircles(uint8_t radius, uint16_t color) {
unsigned long start;
int x, y, r2 = radius * 2,
w = tft.width() + radius,
h = tft.height() + radius;
// Screen is not cleared for this one -- this is
// intentional and does not affect the reported time.
start = micros();
for (x = 0; x < w; x += r2) {
for (y = 0; y < h; y += r2) {
tft.drawCircle(x, y, radius, color);
}
}
return micros() - start;
}
unsigned long testTriangles() {
unsigned long start;
int n, i, cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(TFT_BLACK);
n = min(cx, cy);
start = micros();
for (i = 0; i < n; i += 5) {
tft.drawTriangle(
cx , cy - i, // peak
cx - i, cy + i, // bottom left
cx + i, cy + i, // bottom right
tft.color565(0, 0, i));
}
return micros() - start;
}
unsigned long testFilledTriangles() {
unsigned long start, t = 0;
int i, cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(TFT_BLACK);
start = micros();
for (i = min(cx, cy); i > 10; i -= 5) {
start = micros();
tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
tft.color565(0, i, i));
t += micros() - start;
tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
tft.color565(i, i, 0));
}
return t;
}
unsigned long testRoundRects() {
unsigned long start;
int w, i, i2,
cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(TFT_BLACK);
w = min(tft.width(), tft.height());
start = micros();
for (i = 0; i < w; i += 6) {
i2 = i / 2;
tft.drawRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(i, 0, 0));
}
return micros() - start;
}
unsigned long testFilledRoundRects() {
unsigned long start;
int i, i2,
cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(TFT_BLACK);
start = micros();
for (i = min(tft.width(), tft.height()); i > 20; i -= 6) {
i2 = i / 2;
tft.fillRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(0, i, 0));
yield();
}
return micros() - start;
}
/***************************************************
Original Adafruit text:
This is an example sketch for the Adafruit 2.2" SPI display.
This library works with the Adafruit 2.2" TFT Breakout w/SD card
----> http://www.adafruit.com/products/1480
Check out the links above for our tutorials and wiring diagrams
These displays use SPI to communicate, 4 or 5 pins are required to
interface (RST is optional)
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
Expect, sometimes there was some flickering. But all in all no visible Text, forms or colours.
Internet research and AI-Assistent couldn't help me.
Preperations:
I edited data "User_Setup.h as follow:
Display Driver:
\//#define ILI9341_DRIVER``
all other Drivers are commented out. Only:
\#define ILI9488_DRIVER``
Pins:
#define TFT_MOSI 17
#define TFT_SCLK 18
#define TFT_CS 9 // Chip select control pin
#define TFT_DC 15 // Data Command control pin
#define TFT_RST 16 // Reset pin (could connect to RST pin)
Cable management:
Additional setting:
\#define USE_HSPI_PORT``
After I uploaded some example files of the library. But no output.
Did someone stumbled across this problem and found a solution?
1
Upvotes
2
u/rattushackus 8d ago
There is a User_Setup.h for the ILI9488 here. Filling in what I think are your pin defs from your diagram I get this:
``` // See SetupX_Template.h for all options available
define USER_SETUP_ID 21
define ILI9488_DRIVER
//#define TFT_INVERSION_OFF
define TFT_MISO -1 // (leave TFT SDO disconnected if other SPI devices share MISO)
define TFT_MOSI 17
define TFT_SCLK 18
define TFT_CS 9 // Chip select control pin
define TFT_DC 15 // Data Command control pin
define TFT_RST 16 // Reset pin (could connect to RST pin)
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 20000000
define SPI_FREQUENCY 27000000
// #define SPI_FREQUENCY 40000000 // #define SPI_FREQUENCY 80000000
// Optional reduced SPI frequency for reading TFT
define SPI_READ_FREQUENCY 16000000
define SPI_TOUCH_FREQUENCY 2500000
```
2
u/Jannic7 8d ago edited 8d ago
Ah, yeah that's correct. There is one User_Setup.h which the program is currently useing and there is another data "User_Setups/Setup21_ILI9488.h".
I am a little confused, because it says comment out (,on User_Setup.h,) every driver, but yours (ILI9488) and set pins. But the library has more specific Drivers for each display driver chip.
What can I do? Did I comment out some wrong driver?
1
u/Jannic7 5d ago
I was able to solve it!
Main mistake: wrong pins.
The ESP32 S3 Chip HAS SPECIFIC pins for SPI connection.
On PDF "esp32-s3_technical_reference_manual_en" ESP tells you, which FSPI Bus Signal port you need:
(left column)
Page 1110
This table only explains the pins according to their names.
1
u/Jannic7 5d ago
When you want to find out the specific pins for SPI connection, you need to go to your MCU datasheet.
In my case, I went to pdf "esp32-s3-wroom-1_wroom-1u_datasheet_en" and looked for the pin outs with name "FSPI".
Page 11
As you can see, this MCU (ESP32 S3 WROOM 1u) has specific pins for SPI.
2
u/gm310509 400K , 500K , 600K , 640K , 750K 8d ago
Can you include your circuit diagram and some photos?
Also, one of the sample programs. When including a program, please use a reddit formatted code block. The guide explains how to do that. There is also a link to a video that describes the exact same thing if you prefer that format.