Key Specifications
| Parameter |
Specification / Detail |
| Display Type |
TFT LCD (Thin-Film Transistor) |
| Screen Size (Diagonal) |
2.4 inch / 2.8 inch (standard form factor) |
| Resolution |
240 × 320 Pixels (QVGA) |
| Display Colors |
65K / 262K RGB Colors |
| Driver IC |
ILI9341 |
| Interface |
4-Wire SPI (Serial Peripheral Interface) |
| Operating Voltage |
3.3V – 5.0V DC (with onboard 3.3V LDO regulator) |
| Logic Voltage |
3.3V (5V tolerant with resistor dividers/level shifters) |
| Backlight |
White LED (PWM dimmable via LED control pin) |
| Pin Count (Main Header) |
11 Pins (VCC, GND, CS, RESET, DC, SDI/MOSI, SCK, LED, SDO/MISO, etc.) |
| Auxiliary Header |
5 Pins (SD Card Interface: SD_CS, SD_MOSI, SD_MISO, SD_SCK) |
| Active Area |
Approx. 43.2 × 57.6 mm |
| PCB Dimensions |
Approx. 50.0 × 86.0 mm |
| Touch Panel (Optional) |
Resistive Touch (XPT2046 controller on select variants) |
Applications & Practical Uses
▪ Embedded & IoT Device User Interfaces: Serving as the main graphical display for microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi Pico to show sensor readouts, graphs, and system telemetry.
▪ Industrial Controls & Instrumentation: Used in digital multimeters, signal generators, temperature controllers, flow meters, and PLC display panels for real-time process monitoring.
▪ Medical & Diagnostic Devices: Integrated into portable health monitors, pulse oximeters, blood pressure monitors, and handheld laboratory test devices.
▪ Smart Home & Consumer Electronics: Powers interactive screens for smart thermostats, weather stations, security keypad units, digital clocks, and audio equipment displays.
▪ DIY Electronics & Educational Kits: Widely adopted in STEM education and maker projects for teaching graphical programming, GUI development, and SPI protocol hardware integration.
▪ Portable Gaming & Retro Consoles: Utilized in handheld gaming prototypes (e.g., Game Boy clones) for rendering low-latency 2D graphics and custom menus.
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