2.4 Inch OLED Display Screen Combined with EC11 Rotary Encoder

2.4 Inch TFT Display Screen With EC11 Rotary Encoder Combination Module SPI Interface LCD Display Screen provides a sophisticated, all-in-one user interface solution for embedded projects requiring both high-quality visual output and tactile user input. This integrated module features a vibrant 240×320 resolution color display paired with a high-precision EC11 rotary encoder. Consequently, developers can implement complex menu systems and parameter adjustments using a single, compact hardware unit. The display utilizes a high-speed SPI interface to ensure smooth graphical updates. Furthermore, the inclusion of the rotary encoder simplifies the mechanical design of custom enclosures. Therefore, you can easily create professional-grade control panels for home automation, industrial tools, or DIY synthesizers.

Key Features:

• High-Resolution Color: The 2.4-inch screen offers a sharp 240×320 pixel resolution with support for up to 65K colors, providing excellent clarity for text and icons.
• Integrated EC11 Encoder: Features a built-in rotary encoder with a push-button switch, allowing for seamless navigation and selection within software menus.
• Efficient SPI Interface: Uses a 4-wire Serial Peripheral Interface to minimize the number of required GPIO pins on your microcontroller.
• Wide Viewing Angle: The TFT technology ensures consistent color and brightness across various viewing positions.
• Standard Mounting Holes: Includes pre-drilled holes in the PCB, making it incredibly simple to secure the module into a front panel or chassis.

Technical Specifications:

• Screen Size: 2.4 Inch (Diagonal)
• Display Resolution: 240 (RGB) x 320 Pixels
• Driver IC: ILI9341 or ST7789V (Standard SPI variants)
• Operating Voltage: 3.3 V to 5.0 V (I/O compatible with 3.3 V logic)
• Backlight Type: 4 x White LED (Parallel)
• Encoder Type: EC11 (20 Pulses per 360° rotation)
• Interface Protocol: 4-Wire SPI (Serial Peripheral Interface)

Mechanical Specifications:

• Display Type: TFT-LCD (Thin Film Transistor)
• Encoder Life: ≥ 30,000 cycles
• Connector Type: Multi-pin header for display and encoder signals
• PCB Material: FR-4 High-quality glass fiber

Dimensions:

• Module Dimensions: ≈ 77.0 mm x 43.0 mm
• Active Area Size: ≈ 48.9 mm x 36.7 mm
• Encoder Shaft Diameter: 6.0 mm
• Total Thickness: ≈ 12.0 mm (Excluding encoder knob)

Pinout and Wiring:

• VCC: Power supply input (3.3V or 5V depending on board LDO).
• GND: Ground connection.
• CS: Chip Select (Active Low) for the SPI display.
• RESET: Display hardware reset pin.
• DC/RS: Data/Command selection pin.
• SDI (MOSI): Master Out Slave In data line for SPI.
• SCK: Serial Clock line for SPI communication.
• LED: Backlight control pin (Connect to VCC or PWM for dimming).
• ENC_A / ENC_B: Quadrature output pins for the rotary encoder.
• ENC_SW: Push-button switch output for the encoder.

Datasheet Reference:

• Download ILI9341 Display Controller Datasheet

Commonly Used in:

• Smart Home Controllers: Building elegant wall-mounted thermostats or lighting control panels.
• Audio Equipment: Creating digital volume controls and track selection menus for MP3 players and DSPs.
• Lab Instruments: Designing frequency counters or power supply interfaces with precise rotary adjustment.

Applications:

• Menu Navigation: However, you should always implement debouncing in software to ensure smooth scrolling through encoder options.
• Data Visualization: Displaying real-time sensor graphs for temperature, pressure, or voltage monitoring.
• Custom Gaming Handhelds: Using the display for graphics and the encoder for menu-based setting tweaks.

Equivalent Models:

• 2.4″ SPI TFT (No Encoder): Standard modules that require external wiring for buttons or encoders.
• 2.8″ SPI TFT Module: A slightly larger display option, though typically lacking the integrated encoder mounting.
• OLED Rotary Combo: Smaller monochrome display alternatives that use I2C instead of SPI.

Package Includes:

• 1 x 2.4 Inch TFT Display Screen With EC11 Rotary Encoder Combination Module