Specifications:

• Display Color: RGB 65K color
• Screen Size: 1.8(inch)
• Type: TFT
• Driver IC: ST7735S
• Resolution: 128*160 (Pixel)
• Module Interface: 4-wire SPI interface
• Active Area (AA area): 28.03x35.04(mm)
• Module PCB Size: 34.5x58.0(mm)
• Operating Temperature: -20C~60C
• Storage Temperature: -30C~70C
• VCC power voltage: 3.3V~5V
• Logic IO port voltage: 3.3V(TTL)
• Rough Weight(Package containing): 25g

How to interface with Arduino?

To interface with an Arduino using a TFT display, you'll need to follow these general steps:

1. Hardware Connections

• Power Supply: Connect the VCC and GND of the display to the Arduino's 5V and GND pins, respectively.
• SPI Pins: Connect the SPI pins of the TFT display to the corresponding SPI pins on the Arduino. For the standard SPI interface, these are usually:
  • MOSI (Master Out Slave In): Connect to Arduino pin 11 (for most Arduinos).
  • MISO (Master In Slave Out): Connect to Arduino pin 12 (if used, often not needed for displays).
  • SCK (Serial Clock): Connect to Arduino pin 13.
• CS (Chip Select): Connect to a digital pin on the Arduino (often pin 10).
• DC (Data/Command): Connect to another digital pin (often pin 9).
• RST (Reset): Connect to a digital pin (often pin 8).

2. Software Libraries

• You’ll need to install the appropriate library to control the TFT display. For the ST7735 driver, you can use the Adafruit ST7735 library. Install it via the Arduino Library Manager:
  • Go to Sketch > Include Library > Manage Libraries…
  • Search for "Adafruit ST7735" and install it.

3. Sample Code

• Here’s a basic example to initialize the display and draw something on it:

#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>

// Pin definitions
#define TFT_CS     10
#define TFT_RST    8
#define TFT_DC     9

// Create an instance of the display
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);

void setup() {
  // Initialize the display
  tft.initR(INITR_BLACKTAB);
  tft.fillScreen(ST77XX_BLACK);
  tft.setTextColor(ST77XX_WHITE);
  tft.setTextSize(1);
  tft.setCursor(0, 0);
  tft.println("Hello, World!");
}

void loop() {
  // Your code here
}