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09/24/2026 1:45 PM
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#include <Arduino.h>
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7789.h>
// =====================================================
// ST7789 240x240
// =====================================================
#define TFT_CS -1
#define TFT_RST 4
#define TFT_DC 2
#define TFT_SCLK 18
#define TFT_MOSI 23
Adafruit_ST7789 tft(
TFT_CS,
TFT_DC,
TFT_RST
);
void setup()
{
SPI.begin(
TFT_SCLK,
-1,
TFT_MOSI,
-1
);
tft.init(
240,
240,
SPI_MODE3
);
tft.setRotation(1);
tft.fillScreen(ST77XX_BLACK);
// Text
tft.setTextColor(ST77XX_CYAN);
tft.setTextSize(3);
tft.setCursor(35, 105);
tft.print("Hello");
tft.setCursor(25, 140);
tft.print("IoTNestBD");
}
void loop()
{
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