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  1. TFT displays are versatile graphical interfaces that can be easily integrated with ESP32 microcontrollers for creating visually appealing projects. Below, we explore how to interface and program TFT displays with ESP32, focusing on two popular setups: the ST7735 driver-based 1.8-inch TFT display and the GC9A01 driver-based 1.28-inch round TFT display.

    Interfacing the ST7735 TFT Display with ESP32

    The ST7735 TFT display is a 1.8-inch module with a resolution of 128x160 pixels. It uses the SPI communication protocol and operates at 3.3V, making it compatible with ESP32.

    Wiring

    Here’s how to connect the ST7735 display to an ESP32:

    • CS (Chip Select): GPIO5

    • RST (Reset): GPIO16

    • DC (Data/Command): GPIO17

    • MOSI (Data): GPIO23

    • SCLK (Clock): GPIO18

    • BL (Backlight): GPIO22

    • VCC: 3.3V

    • GND: GND

    Programming with Libraries

    Two libraries are commonly used for programming the ST7735 display:

    • Adafruit_ST7735: Install via Arduino IDE Library Manager. Example code:

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