Adafruit_ImageReader exercises run on Raspberry Pi Pico to load images from SD Card, display on 320x240 IPS SPI ILI9341

It's Adafruit_ImageReader exercises run on Raspberry Pi Pico to load images from SD Card, and display on 320x240 IPS SPI ILI9341 Module using using Adafruit_ILI9341 library.

Basically follow the page Adafruit GFX Graphics Library Loading Images

For 320x240 IPS SPI ILI9341 part using Adafruit_ILI9341 library, refer:
~ Raspberry Pi Pico (RP2040) + 3.2inch IPS SPI Module ILI9341 (using Adafruit_ILI9341 library) It will also install Adafruit GFX Graphics Library as dependence.

This exercise run on Raspberry Pi Pico in Earle Philhower's Arduino core (Raspberry Pi Pico/RP2040). refer:
~ Install Earle Philhower Raspberry Pi Pico Arduino core.

Currently Adafruit_ImageReader support uncompressed 24-bit color BMPs only, refer:
~ Convert image to 24-bit color BMPs using GIMP to prepare s1.bmp ~ s12.bmp, save in root directory of SD card.

Install Adafruit_ImageReader and dependence in Arduino IDE Library Manager.

Connection:

  ILI9341 Module	Raspberry Pi Pico
  1 	VCC		3V3
  2 	GND		GND
  3 	LCD_CS		GP17
  4 	LCD_RST		GP21
  5 	LCD_RS		GP20
  6 	SDI(MOSI)	GP19
  7 	SCK		GP18
  8 	LED	        3V3
  9 	SDO(MISO)	GP16
  10 	CTP_SCL
  11 	CTP_RST
  12 	CTP_SDA
  13 	CTP_INT
  14 	SD_CS		GP15

Code:

picoILI9341__ImageReader_s1.ino

/*
  Exercise of Raspberry Pi Pico (Arduino framework) using Adafruit_ImageReader.
  loading a single bmp from root directory of SD card (s1.bmp) and display on 
  3.2" TFT SPI 240x320 (ILI9341) with Capacitive Touch (FT6336U).

  Notice that It have been compilied using Earle Philhower Raspberry Pi Pico Arduino core.
  If compile using Arduino Mbed OS RP2040 Boards, will fail with 
  error: 'rp2040' was not declared in this scope

  This uses the microcontroller's SPI interface for the screen and must be wired to 
  specific pins (MOSI/MISO/SCK). 
  Other pins (TFT_DC/TFT_CS/TFT_RST/SD_CS) are configurable below.
  
  Connection:
  ILI9341 Module	Raspberry Pi Pico
  1 	VCC		3V3
  2 	GND		GND
  3 	LCD_CS		GP17
  4 	LCD_RST		GP21
  5 	LCD_RS		GP20
  6 	SDI(MOSI)	GP19
  7 	SCK		GP18
  8 	LED		3V3
  9 	SDO(MISO)	GP16
  10 	CTP_SCL
  11 	CTP_RST
  12 	CTP_SDA
  13 	CTP_INT
  14 	SD_CS		GP15

*/

#include <Adafruit_GFX.h>         // Core graphics library
#include <Adafruit_ILI9341.h>     // Hardware-specific library
#include <SdFat.h>                // SD card & FAT filesystem library
#include <Adafruit_SPIFlash.h>    // SPI / QSPI flash library
#include <Adafruit_ImageReader.h> // Image-reading functions

// TFT display and SD card share the hardware SPI interface, using
// 'select' pins for each to identify the active device on the bus.

#define SD_CS  15 // SD card select pin
#define TFT_DC 20
#define TFT_CS 17
#define TFT_RST 21

SdFat                SD;         // SD card filesystem
Adafruit_ImageReader reader(SD); // Image-reader object, pass in SD filesys

Adafruit_ILI9341     tft    = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
Adafruit_Image       img;        // An image loaded into RAM
int32_t              width  = 0, // BMP image dimensions
                     height = 0;

void setup(void) {

  ImageReturnCode stat; // Status from image-reading functions

  Serial.begin(9600);
  while(!Serial);       // Wait for Serial Monitor before continuing

  tft.begin();          // Initialize screen
  tft.invertDisplay(true);
  tft.setRotation(1);

  // The Adafruit_ImageReader constructor call (above, before setup())
  // accepts an uninitialized SdFat or FatVolume object. This MUST
  // BE INITIALIZED before using any of the image reader functions!
  Serial.print(F("Initializing filesystem..."));

  // SD card is pretty straightforward, a single call...
  if(!SD.begin(SD_CS, SD_SCK_MHZ(25))) { // ESP32 requires 25 MHz limit
    Serial.println(F("SD begin() failed"));
    for(;;); // Fatal error, do not continue
  }

  Serial.println(F("OK!"));

  // Fill screen blue. Not a required step, this just shows that we're
  // successfully communicating with the screen.
  tft.fillScreen(ILI9341_BLUE);

  // Load BMP 's1.bmp' into a GFX canvas in RAM.
  Serial.print(F("Loading s1.bmp to canvas..."));
  stat = reader.loadBMP("/s1.bmp", img);
  reader.printStatus(stat); // How'd we do?

}

void loop() {
  for(int r=0; r<4; r++) { // For each of 4 rotations...
    tft.setRotation(r);    // Set rotation
    tft.fillScreen(0);     // and clear screen

    img.draw(tft, 0, 0);  //draw from RAM-resident images:

    delay(2000);
  }
}

picoILI9341__ImageReader.ino

/*
  Exercise of Raspberry Pi Pico (Arduino framework) using Adafruit_ImageReader.
  loading a bmp(s) from root directory of SD card (s1.bmp~s12.bmp) and display on 
  3.2" TFT SPI 240x320 (ILI9341) with Capacitive Touch (FT6336U) repeatly.

  Notice that It have been compilied using Earle Philhower Raspberry Pi Pico Arduino core.
  If compile using Arduino Mbed OS RP2040 Boards, will fail with 
  error: 'rp2040' was not declared in this scope

  This uses the microcontroller's SPI interface for the screen and must be wired to 
  specific pins (MOSI/MISO/SCK). 
  Other pins (TFT_DC/TFT_CS/TFT_RST/SD_CS) are configurable below.
  
  Connection:
  ILI9341 Module	Raspberry Pi Pico
  1 	VCC	        3V3
  2 	GND		GND
  3 	LCD_CS		GP17
  4 	LCD_RST		GP21
  5 	LCD_RS		GP20
  6 	SDI(MOSI)	GP19
  7 	SCK		GP18
  8 	LED		3V3
  9 	SDO(MISO)	GP16
  10 	CTP_SCL
  11 	CTP_RST
  12 	CTP_SDA
  13 	CTP_INT
  14 	SD_CS		GP15

*/

#include <Adafruit_GFX.h>         // Core graphics library
#include <Adafruit_ILI9341.h>     // Hardware-specific library
#include <SdFat.h>                // SD card & FAT filesystem library
#include <Adafruit_SPIFlash.h>    // SPI / QSPI flash library
#include <Adafruit_ImageReader.h> // Image-reading functions

// TFT display and SD card share the hardware SPI interface, using
// 'select' pins for each to identify the active device on the bus.

#define SD_CS  15 // SD card select pin
#define TFT_DC 20
#define TFT_CS 17
#define TFT_RST 21

SdFat                SD;         // SD card filesystem
Adafruit_ImageReader reader(SD); // Image-reader object, pass in SD filesys

Adafruit_ILI9341     tft    = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

const char *bmpFile[] = {"/s1.bmp", "/s2.bmp", "/s3.bmp", "/s4.bmp",
                         "/s5.bmp", "/s6.bmp", "/s7.bmp", "/s8.bmp",
                         "/s9.bmp", "/s10.bmp", "/s11.bmp", "/s12.bmp"};

void setup(void) {

  Serial.begin(9600);
  while(!Serial);       // Wait for Serial Monitor before continuing

  tft.begin();          // Initialize screen
  tft.invertDisplay(true);
  tft.setRotation(1);

  // The Adafruit_ImageReader constructor call (above, before setup())
  // accepts an uninitialized SdFat or FatVolume object. This MUST
  // BE INITIALIZED before using any of the image reader functions!
  Serial.print(F("Initializing filesystem..."));

  // SD card is pretty straightforward, a single call...
  if(!SD.begin(SD_CS, SD_SCK_MHZ(25))) { // ESP32 requires 25 MHz limit
    Serial.println(F("SD begin() failed"));
    for(;;); // Fatal error, do not continue
  }

  Serial.println(F("OK!"));

  // Fill screen blue. Not a required step, this just shows that we're
  // successfully communicating with the screen.
  tft.fillScreen(ILI9341_BLUE);

}

void loop() {

  for(int i=0; i<12; i++) {
      reader.drawBMP(bmpFile[i], tft, 0, 0);
      delay(2000);
    }
}

next:
~ Detect FT6336U Capacitive Touch Screen on Raspberry Pi Pico using Arduino-FT6336U library.