1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of the DIYmalls FZ2603A 1.44-inch SPI TFT LCD Display Module. This compact display is designed for use with microcontrollers like Arduino UNO and Mega-2560, offering a vibrant 16-bit RGB 65K color display with a 128x128 resolution. Its 4-wire SPI interface simplifies connectivity, requiring minimal I/O pins. The module also includes an SD card slot for expanded functionality.
2. Specifications
| Feature | Description |
|---|---|
| Model Number | FZ2603A |
| Display Size | 1.44 inches |
| Display Mode | 128*128 |
| Resolution | 128x128 pixels |
| Display Color | 16BIT RGB 65K color |
| Module Interface | 4-wire SPI interface |
| PCB Module Dimensions | 31.49mm x 43.95mm |
| Active Area Dimensions | 26.2mm x 27.2mm |
| Operating Voltage | 5V / 3.3V |
| Operating Temperature | -20℃ to 60℃ |
| Customization | Yes |
| High-concerned chemical | None |
For detailed physical dimensions, refer to the dimensional drawing below.
Image: Dimensional drawing of the 1.44-inch SPI TFT LCD module with measurements.
3. Package Contents
The package typically includes:
- 1 or 2 x 1.44-inch SPI TFT LCD Display Module (depending on purchase option)
4. Module Overview
The display module features an 11-pin interface for power, ground, and SPI communication. Below is an image of the module and a detailed pinout table.
Image: Front and back view of the 1.44-inch SPI TFT LCD module.
Image: Detailed back view of the LCD module with pin labels and a corresponding pinout table.
4.1 Pin Description
| No. | Pin | Description |
|---|---|---|
| 1 | VCC | LCD Power positive (3.3V~5V) |
| 2 | GND | LCD Power ground |
| 3 | GND | LCD Power ground |
| 4 | NC | Not defined, reserved |
| 5 | NC | Not defined, reserved |
| 6 | LED | Backlight control, high level lighting. If not controlled, connect 3.3V for always bright. |
| 7 | CLK | LCD SPI bus clock signal |
| 8 | SDI | LCD SPI bus write data signal |
| 9 | RS | LCD register / data selection signal (High level: register, Low level: data) |
| 10 | RST | LCD reset signal (Low level reset) |
| 11 | CS | LCD chip select signal (Low level enable) |
5. Setup & Wiring
The FZ2603A module uses a 4-wire SPI interface for communication. Ensure your microcontroller supports SPI and provides the necessary 3.3V or 5V power supply.
5.1 Wiring for Arduino UNO
For direct insertion into an Arduino UNO board, align the pins as shown in the diagram below. The specific pins for communication are also listed in the table.
Image: Direct insertion of the LCD module onto an Arduino UNO board. Note: The pin on the module labeled 'A5' is inserted into the Arduino's A5 position, and the module's '5V' pin is inserted into the Arduino's 5V position.
| Number | LCD Pin | Corresponding to UNO board wiring pins |
|---|---|---|
| 1 | VCC | 5V/3.3V |
| 2 | GND | GND |
| 3 | GND | GND |
| 4 | NC | no connection |
| 5 | NC | no connection |
| 6 | LED | A0 |
| 7 | CLK | hardware SPI 13 |
| 8 | SDI | hardware SPI 11 |
| 9 | RS | A3 |
| 10 | RST | A4 |
| 11 | CS | A5 |
Table: Pin connections for Arduino UNO.
5.2 Wiring for Arduino Mega-2560
For direct insertion into an Arduino Mega-2560 board, align the pins as shown in the diagram below. The specific pins for communication are also listed in the table.
Image: Direct insertion of the LCD module onto an Arduino Mega-2560 board. Note: The pin on the module labeled 'A5' is inserted into the Arduino's A5 position, and the module's '5V' pin is inserted into the Arduino's 5V position.
| Number | LCD Pin | Corresponding to 2560 board wiring pins |
|---|---|---|
| 1 | VCC | 5V/3.3V |
| 2 | GND | GND |
| 3 | GND | GND |
| 4 | NC | no connection |
| 5 | NC | no connection |
| 6 | LED | software SPI A1 |
| 7 | CLK | hardware SPI 52 |
| 8 | SDI | hardware SPI 51 |
| 9 | RS | A3 |
| 10 | RST | A4 |
| 11 | CS | A5 |
Table: Pin connections for Arduino Mega-2560.
6. Operating Instructions
Once correctly wired, the display module can be controlled via the SPI interface using appropriate libraries for your microcontroller (e.g., Adafruit GFX Library and Adafruit ST7735 Library for Arduino). These libraries provide functions for drawing text, shapes, and images.
6.1 Displaying Graphics
The module is capable of displaying rich 16-bit RGB 65K color graphics. You can program various visual elements, from simple shapes to complex images.
Image: Examples of various images and graphics rendered on the 1.44-inch TFT LCD.
6.2 SD Card Functionality
The integrated SD card slot allows for convenient storage and retrieval of display data, such as bitmaps or configuration files. Ensure you use compatible SD card libraries with your microcontroller to access this feature.
7. Maintenance
- Cleaning: Gently wipe the display surface with a soft, dry, lint-free cloth. Avoid using abrasive cleaners or solvents.
- Storage: Store the module in a dry, anti-static environment away from direct sunlight and extreme temperatures.
- Handling: Avoid touching the display surface directly to prevent fingerprints or scratches. Handle the PCB by its edges.
8. Troubleshooting
- Display not lighting up: Check power connections (VCC, GND) and ensure the LED pin is correctly connected or pulled high (e.g., to 3.3V) if not actively controlled.
- No display output/Garbled display: Verify all SPI connections (CLK, SDI, RS, RST, CS) are correct according to the wiring diagrams. Ensure the correct display library is installed and initialized with the correct pin assignments in your code.
- SD card not detected: Check the SD card slot connections and ensure your code correctly initializes the SD card library and accesses the card.
- Flickering display: Ensure a stable power supply. Check for loose connections.
9. User Tips
- Always double-check your wiring against the provided diagrams before powering on your circuit to prevent damage.
- When using the SD card, ensure it is formatted correctly (FAT16 or FAT32) and contains compatible files for your application.
- Experiment with different display libraries and example codes available online for the ST7735S controller to explore the full capabilities of the module.
10. Warranty and Support
For technical assistance or inquiries regarding the FZ2603A display module, please refer to the seller's support channels or the DIYmalls official website. Keep your purchase records for any warranty claims.