Design with 1.47" Touch LCD Display Module in Cirkit DesignerThe 1.47" Touch LCD Display Module (Manufacturer: Waveshare, Part ID: 1.47inch Touch LCD) is a compact and versatile display module featuring a 1.47-inch diagonal screen with touch capability. This module is designed for applications requiring a small, interactive display, making it ideal for projects involving microcontrollers, such as the Arduino UNO, Raspberry Pi, or other embedded systems.
With its vibrant color display and touch functionality, this module is perfect for creating user interfaces, displaying sensor data, or controlling devices in real-time. Its compact size and ease of integration make it suitable for portable devices, IoT projects, and educational purposes.
This circuit features an RTL8720DN microcontroller interfaced with a China ST7735S 160x128 TFT LCD display and four pushbuttons. The microcontroller reads the states of the pushbuttons and displays their statuses on the TFT LCD, providing a visual feedback system for button presses.
Open Project in Cirkit Designer
This circuit features an Arduino Mega 2560 microcontroller connected to an ILI9488 HD TFT LCD screen and a 4-channel relay module, powered by a 5V battery. The Arduino controls the LCD to display interactive buttons and uses digital output pins to toggle the state of the relays based on touch input. The code provided facilitates a user interface on the LCD for controlling devices connected to the relays, making it suitable for home automation or similar applications.
Open Project in Cirkit Designer
This circuit connects an Arduino Mega 2560 microcontroller to a 3.5-inch 480x320 TFT LCD display. The Arduino provides power, ground, and digital signals to control the display, including data lines for pixel information and control lines for reset, write, and command/data selection. The embedded code initializes the display and configures the Arduino's pins for communication, likely to create a user interface or visual output for a project.
Open Project in Cirkit Designer
This circuit connects an ESP32 microcontroller to a 1.3 inch TFT display module (ST7789). The ESP32 provides power and control signals to the display, enabling it to show graphical data.
Open Project in Cirkit Designer| Parameter | Specification |
|---|---|
| Display Type | TFT LCD with capacitive touch |
| Screen Size | 1.47 inches (diagonal) |
| Resolution | 172 × 320 pixels |
| Touch Type | Capacitive |
| Interface | SPI |
| Operating Voltage | 3.3V / 5V |
| Operating Temperature | -20°C to 70°C |
| Dimensions | 35.5mm × 23.5mm |
| Backlight | LED |
| Manufacturer Part ID | 1.47inch Touch LCD |
The module features a standard SPI interface with the following pinout:
| Pin Name | Pin Number | Description |
|---|---|---|
| VCC | 1 | Power supply input (3.3V or 5V) |
| GND | 2 | Ground connection |
| DIN | 3 | SPI data input (MOSI) |
| CLK | 4 | SPI clock input |
| CS | 5 | Chip select (active low) |
| DC | 6 | Data/Command control pin (High for data, Low for command) |
| RST | 7 | Reset pin (active low) |
| T_IRQ | 8 | Touch interrupt output (active low, optional for touch functionality) |
VCC pin to a 3.3V or 5V power source and the GND pin to ground.DIN, CLK, and CS pins to the corresponding SPI pins on your microcontroller.DC pin to differentiate between data and command signals.RST pin to a GPIO pin for resetting the display.T_IRQ pin to a GPIO pin configured as an interrupt input.Below is an example of how to interface the 1.47" Touch LCD Display Module with an Arduino UNO using the SPI interface. This example uses the popular Adafruit_GFX and Adafruit_ST7735 libraries for display control.
#include <Adafruit_GFX.h> // Graphics library for displays
#include <Adafruit_ST7735.h> // Library for ST7735-based displays
// Define pin connections
#define TFT_CS 10 // Chip select pin
#define TFT_RST 9 // Reset pin
#define TFT_DC 8 // Data/Command pin
// Initialize the display object
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
void setup() {
// Initialize serial communication for debugging
Serial.begin(9600);
Serial.println("1.47\" Touch LCD Display Test");
// Initialize the display
tft.initR(INITR_BLACKTAB); // Initialize with ST7735 settings
tft.setRotation(1); // Set display orientation (1 = landscape)
// Clear the screen with a black background
tft.fillScreen(ST77XX_BLACK);
// Display a welcome message
tft.setTextColor(ST77XX_WHITE);
tft.setTextSize(2);
tft.setCursor(10, 10);
tft.println("Hello, World!");
}
void loop() {
// Example: Draw a red rectangle
tft.fillRect(20, 50, 100, 50, ST77XX_RED);
// Pause for 2 seconds
delay(2000);
// Clear the rectangle
tft.fillRect(20, 50, 100, 50, ST77XX_BLACK);
// Pause for 2 seconds
delay(2000);
}
Note: Install the Adafruit_GFX and Adafruit_ST7735 libraries via the Arduino Library Manager before running the code.
No Display Output:
VCC and GND pins are properly connected.RST pin is correctly initialized in the code.Touch Functionality Not Working:
T_IRQ pin is connected to a GPIO pin configured as an interrupt.Flickering or Unstable Display:
Incorrect Colors or Orientation:
INITR_BLACKTAB).setRotation() function to adjust the display orientation.This documentation provides a comprehensive guide to using the 1.47" Touch LCD Display Module. By following the instructions and best practices outlined above, users can successfully integrate this module into their projects.