ST7789 8P 76X284 SPI 2.25 Inch Long Strip LCD Screen Display Module

ST7789 8P 76X284 SPI 2.25 Inch Long Strip LCD Screen Display Module is a high-resolution, full-color TFT display solution specifically engineered for applications requiring a unique, vertically oriented graphical interface. This module leverages the powerful ST7789V driver IC to manage its 76×284 pixel array, offering brilliant colors and fast response times within a highly compact, long-strip format. Consequently, designers can integrate this screen into narrow bezels or space-constrained devices where traditional rectangular displays simply won’t fit. The display communicates exclusively via a high-speed 4-wire SPI interface, which minimizes required GPIO pins on the host microcontroller. Furthermore, its small form factor and vibrant output make it perfect for portable, wearable, and instrumentation projects.

Key Features:

• Unique Strip Format: The 76×284 resolution provides an extra-long viewing area, making it ideal for displaying meters, gauges, scrolling text, or continuous data streams.
• ST7789V Driver IC: This robust controller manages up to 262K colors and offers built-in RAM for smooth graphical rendering and efficient operation.
• High-Speed SPI Interface: Uses the 4-wire Serial Peripheral Interface (SPI), which simplifies wiring and reduces the load on the host microcontroller’s I/O resources.
• Wide Viewing Angle: Features TFT technology with high brightness and contrast, ensuring clarity and readability across various viewing angles.
• Logic Level Compatibility: Operates efficiently with standard 3.3 V logic levels, making it directly compatible with most modern microcontrollers like Arduino, ESP32, and STM32.

Technical Specifications:

• Display Type: TFT LCD (Thin Film Transistor Liquid Crystal Display)
• Driver IC: ST7789V
• Resolution: 76 x 284 Pixels
• Color Depth: 262K Colors (RGB 6-bit)
• Interface Protocol: 4-wire SPI (Serial Peripheral Interface)
• Viewing Direction: Full viewing cone (IPS-type technology for high quality)
• Supply Voltage (V_CC): 3.3 V to 5 V (On-board LDO may regulate to 3.3 V logic)
• Operating Temperature: −20°C to +70°C

Mechanical Specifications:

• Screen Size: 2.25 Inches (Diagonal)
• Module Style: PCB module with connection header
• Backlight Type: White LED (Integrated)
• Connection Pins: 8-pin Header
• Glass Material: High-quality glass substrate

Dimensions:

• Visible Area Width: ≈ 14.8 mm
• Visible Area Height: ≈ 61.3 mm
• Module PCB Length: ≈ 70.0 mm
• Module PCB Width: ≈ 20.0 mm
• Thickness: ≈ 3.0 mm (Excluding pin height)

Pinout and Wiring:

• GND: Connect to the system ground (0V).
• VCC: Connect to the 3.3 V or 5 V power supply.
• SCL (Serial Clock): Connect to the host microcontroller’s SPI clock pin (SCK).
• SDA (Serial Data): Connect to the host microcontroller’s SPI MOSI (Master Out Slave In) pin.
• RES (Reset): Connect to a GPIO pin; drive low momentarily to reset the display.
• DC (Data/Command): Connect to a GPIO pin to toggle between data mode (High) and command mode (Low).
• CS (Chip Select): Connect to a GPIO pin to enable the display chip for communication (Active Low).
• BLK (Backlight): Connect to VCC or a PWM pin for brightness control.

Datasheet Reference:

• Download Sitronix ST7789V Controller Datasheet

Commonly Used in:

• Handheld Measurement Tools: Displaying scrolling graphs or complex multi-line data in multimeter or sensor readers.
• Wearable Devices: Integrating into smart wristbands or small diagnostic tools where space dictates a long, narrow screen format.
• Computer Case Mods: Used to display system information like temperatures, fan speeds, or clock statuses in vertically oriented windows.

Applications:

• Digital Gauges and Meters: Creating dynamic, segmented bar graphs or scrolling text meters for voltage, current, or volume levels.
• Portable Diagnostic Equipment: Providing an interface for real-time data logging and visualization.
• IoT Status Panels: Displaying network status, time, and short alerts in narrow wall-mounted or desktop hubs.
• Smart Door Locks: Offering a discrete, secure numeric input or status area.

Equivalent Models:

• ILI9341 Series (SPI): While typically square/rectangular, these feature a similar SPI interface and color depth, however, the unique strip resolution is specific to the ST7789 modules.
• ST7735 Modules: Often smaller and lower resolution, they use the same communication protocol and logic levels, sometimes offering interchangeable code libraries.
• GC9A01 Round Displays: Uses the same ST7789/SPI architecture but configured for circular displays, highlighting the versatility of the driver IC.

Package Includes:

• 1 x ST7789 8-Pin 2.25 Inch Long Strip LCD Module