1. Introduction
This manual provides detailed instructions for the setup, operation, and specifications of Estardyn TFT Display Modules. These modules are designed for use with microcontrollers like Arduino, offering vibrant full-color displays via an SPI interface.
2. Specifications
Estardyn TFT Display Modules come in various sizes, each with specific characteristics. Below are the general and size-specific specifications.
2.1. General Features
- Display Color: RGB 65K color
- Interface: SPI (Serial Peripheral Interface)
- Viewing Direction: All View (IPS panels)
- Operating Temperature: -20°C to 70°C (typical)
- Logic IO Port Voltage: 3.3V (TTL)
2.2. 0.96 inch TFT Module
- Display Mode: Normally black IPS
- Display Format: Graphic 80RGB*160 Dot-matrix
- Driver IC: ST7735S
- Dimensional Outline: 24(W)*30(H)*2.8+/-0.1(T)mm
- Resolution: 80RGB*160 Dots
- LCD Active Area: 10.8(W)*21.7(H)mm
- Dot Pitch: 0.135(H) x 0.1356(V)mm
2.3. 1.3 inch TFT Module
- Display Mode: Normally black IPS
- Display Format: Graphic 240RGB*240 Dot-matrix
- Driver IC: ST7789VW
- Dimensional Outline: 27.78(W)*39.22(H)*3.0+/-0.1(T)mm
- Resolution: 240RGB*240 Dots
- LCD Active Area: 23.4(W)*23.4(H)mm
- Dot Pitch: 0.0975(H) x 0.0975(V)mm
2.4. 1.77 inch TFT Module
- Display Type: TFT 85K/Transmissive
- Driver IC: ST7735S or Compatible
- Operating Voltage: VCC=3.0-5.0V
- Viewing Direction: 12 O'CLOCK
- Backlight: 2 Chip White LED
- Operating Temperature: -20°C to 70°C
- Storage Temperature: -30°C to 80°C
- General Tolerance: ±0.2
2.5. 2.0 inch TFT Module
- Driver IC: ST7789V
- Module Interface: 4-line SPI interface
2.6. 2.4 inch TFT Module (with optional touch)
- Display Color: RGB 65K color
- SKU: MSP2402 (with touch screen), MSP2401 (without touch screen)
- Screen Size: 2.4 inch
- Type: TFT
- Driver IC: ST7789V
- Resolution: 320*240 (Pixel)
- Module Interface: 4-wire SPI interface
- Active Area (AA area): 36.72x48.96(mm)
- Module PCB Size: 77.18x42.72(mm)
- Operating Temperature: -20℃~60℃
- Storage Temperature: -30℃~70℃
- VCC Power Voltage: 3.3V~5V
- Logic IO Port Voltage: 3.3V(TTL)
- Rough Weight (Package containing): No touch: 26(g) / With touch: 36(g)
3. Setup and Wiring
These modules utilize a Serial Peripheral Interface (SPI) for communication, requiring a minimal number of I/O pins from your microcontroller.
3.1. Pin Descriptions (Common SPI Pins)
| PIN No. | Symbol | Description |
|---|---|---|
| 1 | GND | Power Ground |
| 2 | VCC | Power Supply (typically 3.3V, some modules with PCB can accept 5V) |
| 3 | SCL | Serial Clock Pin (SPI interface clock) |
| 4 | SDA | Serial Data Input (SPI interface input/output pin, data latched on SCL rising edge) |
| 5 | RES | LCM Reset Pin (Active low; must be applied to properly initialize the chip. Keep high during normal operation.) |
| 6 | DC | Data/Command Control (Display data/command selection pin in 4-line serial interface) |
| 7 | CS | Chip Select (Low enable, high disable) |
| 8 | BLK | Backlight Control Pin |
3.2. Power Supply Considerations
- TFT Power Supply (VCC): The screen power supply is typically 2.8-3.3V. If your module has an integrated PCB with a 3V regulator IC, you can input 5V. Otherwise, ensure you provide 3.3V.
- Backlight Power Supply (BLK/LED pin): The maximum backlight power supply is 3.2V. If using a 3.3V power supply, a 5 ohm current limiting resistor should be connected in series. If using a 5V power supply, a 25 ohm resistor should be connected in series.
3.3. Example Wiring Diagram (2.4 inch module)
Refer to the diagram above for a visual representation of the pin connections. Ensure all connections are secure before applying power.
4. Operating Instructions
To operate the TFT display module, you will need a microcontroller (e.g., Arduino) and appropriate libraries for the specific driver IC (ST7735S or ST7789V).
4.1. Software Setup
- Install IDE: Ensure your microcontroller's Integrated Development Environment (IDE) is installed (e.g., Arduino IDE).
- Install Libraries: Install the necessary display libraries. For ST7735S/ST7789V drivers, common libraries like Adafruit_ST7735 or similar are often used. These libraries handle the low-level SPI communication and display commands.
- Sample Programs: Utilize the provided sample programs (if available from the seller or library documentation) to test basic display functionality.
4.2. Basic Display Control
- Initialization: The display must be initialized by sending specific commands to the driver IC. This typically involves setting the display mode, resolution, and other parameters. The RES pin should be toggled low then high during initialization.
- Data Transfer: Use the SPI interface to send display data (pixel colors) and commands. The DC pin differentiates between data and commands.
- Backlight Control: The BLK pin can be used to control the backlight. It is usually connected to a digital pin on the microcontroller or directly to VCC via a current-limiting resistor.
4.3. SD Card Slot (if applicable)
Some modules include an SD card slot for expanding experiments, allowing you to store images, fonts, or other data directly on the module for display. Refer to your specific module's documentation and library examples for SD card integration.
5. Maintenance
- Cleaning: Gently clean the display surface with a soft, lint-free cloth. Avoid using harsh chemicals or abrasive materials that could scratch the screen.
- Storage: Store the module in a dry, anti-static environment, away from direct sunlight and extreme temperatures.
- Handling: Avoid touching the display surface directly with bare hands to prevent smudges and potential damage. Handle the module by its edges.
6. Troubleshooting
- Display Not Lighting Up:
- Check power connections (VCC and GND). Ensure correct voltage (3.3V, or 5V if the module has a regulator).
- Verify backlight (BLK/LED) connection and ensure the current-limiting resistor is correctly sized.
- Confirm the reset (RES) pin is properly initialized (low then high) and held high during operation.
- No Image/Garbled Display:
- Double-check all SPI connections (SCL, SDA, DC, CS) for continuity and correct pin assignment.
- Ensure the correct driver IC (ST7735S or ST7789V) is selected in your software library.
- Verify that the display initialization sequence in your code matches the requirements of the driver IC.
- Check for correct data/command signaling on the DC pin.
- Partial Display/Incorrect Colors:
- Ensure the resolution settings in your code match the module's specifications.
- Verify that the color depth (e.g., 65K color) is correctly configured.
- Check for buffer overflows or incorrect memory addressing if you are managing display memory manually.
- Module Not Responding:
- Ensure the microcontroller is powered and running correctly.
- Check for short circuits or damaged components on the module.
- Try a different set of I/O pins on your microcontroller if possible.
7. User Tips
No specific user tips were found in the provided reviews or Q&A. However, general best practices for working with small electronics include:
- Always double-check wiring before powering on to prevent damage.
- Start with simple example code to verify basic functionality before implementing complex features.
- Use appropriate libraries for your specific driver IC to simplify programming.
- Consider using a breadboard for initial prototyping to easily modify connections.
8. Warranty and Support
For warranty information and technical support, please refer to the seller's policy or contact Estardyn directly through their official channels. Keep your purchase records for any claims.