// =====================================================
// ESP32-C3 Mini + ILI9341 TFT
// Full Hello World + Color Cycle Test
// =====================================================

#define USER_SETUP_ID 0x9341
#define ILI9341_DRIVER

// ✅ Correct Pin Mapping (ESP32-C3 Mini)
#define TFT_MISO  4   // MISO
#define TFT_MOSI  6   // MOSI
#define TFT_SCLK  7   // SCLK
#define TFT_CS   10   // Chip Select
#define TFT_DC    9   // Data/Command
#define TFT_RST   8   // Reset

// Backlight pin (connect BL/LED pin of TFT here, or tie to 3.3V)
#define TFT_BL    5

#define SPI_FREQUENCY       27000000   // safer than 40 MHz
#define SPI_READ_FREQUENCY  20000000

#include <TFT_eSPI.h>
#include <SPI.h>

TFT_eSPI tft = TFT_eSPI();

void setup() {
  // Turn on backlight
  pinMode(TFT_BL, OUTPUT);
  digitalWrite(TFT_BL, HIGH);

  // Init display
  tft.init();
  tft.setRotation(1);   // try 0–3 if needed

  // Clear screen
  tft.fillScreen(TFT_BLACK);

  // Show test text
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
  tft.drawString("Hello ESP32-C3!", 40, 120, 4);
}

void loop() {
  // Cycle colors
  tft.fillScreen(TFT_RED);
  delay(1000);
  tft.fillScreen(TFT_GREEN);
  delay(1000);
  tft.fillScreen(TFT_BLUE);
  delay(1000);

  // Show branding
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_YELLOW, TFT_BLACK);
  tft.drawString("AI Centre Nandurbar", 30, 120, 4);
  delay(2000);
}