#include <Adafruit_GFX.h>         
#include <Adafruit_ILI9341.h>     
#include <SdFat.h>                
#include <Adafruit_ImageReader.h> 

#define SD_CS   4 // SD card select pin
#define TFT_CS 10 // TFT select pin
#define TFT_DC  8 // TFT display/command pin
#define TFT_RST 9 // TFT reset pin

SdFat                SD;         
SdFile               myFile;
Adafruit_ImageReader reader(SD); 

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

void setup(void) {
  Serial.begin(9600);
  tft.begin();          // Initialize screen

  Serial.print("Setup filesystem...");
  if( !SD.begin( SD_CS, SD_SCK_MHZ(25) ) ) { 
    Serial.println("SD begin() failed");
    while (1) ;
  }
  Serial.println("OK!");

  tft.setRotation(3);
  Serial.print("Loading wokwi.bmp to screen...");
  //reader.printStatus(  reader.drawBMP("/wokwi.bmp", tft, 0, 0)  );   

  if (!myFile.open("test.txt", O_RDWR | O_CREAT | O_AT_END)) {
    SD.errorHalt("opening test.txt for write failed");
  }
  myFile.println("testing 1, 2, 3.");

  // close the file:
  myFile.close();

  // re-open the file for reading:
  if (!myFile.open("test.txt", O_READ)) {
    SD.errorHalt("opening test.txt for read failed");
  }
  Serial.println("test.txt:");

  // read from the file until there's nothing else in it:
  int data;
  while ((data = myFile.read()) >= 0) Serial.write(data);
  // close the file:
  myFile.close();

}

void loop() {

}