Pinout
ILI9341 TFT display (SPI, 2.4″) pinout
Pins
- VCC (3.3V — many red modules also accept 5V through an onboard regulator, logic stays 3.3V)
- GND
- CS (SPI chip select)
- RESET
- DC/RS (data / command select)
- SDI/MOSI, SCK, SDO/MISO (SPI, up to ~40MHz)
- LED (backlight — via ~100Ω to 3.3V or PWM)
- T_CLK, T_CS, T_DIN, T_DO, T_IRQ — the touch panel's own SPI device (XPT2046): share SCK/MOSI/MISO with the display if you like, but it needs its own CS
- J4 on the far edge (SD_CS, SD_MOSI, SD_MISO, SD_SCK) serves the microSD socket on the back
- 240×320 pixels, 18-bit colour
Specifications
| Controller | ILI9341 |
|---|---|
| Resolution | 240 × 320 pixels |
| Colour depth | Up to 262K colours (18-bit); 16-bit RGB565 typical |
| Diagonal | 2.4 in (2.8 in and 3.2 in boards use the same controller) |
| Supply voltage | 3.3 V (many modules 3.3–5 V via onboard regulator) |
| Logic level | 3.3 V |
| Interface | 4-wire SPI, commonly run up to ≈ 40 MHz |
| Touch (if fitted) | Resistive, XPT2046 controller on its own SPI chip select |
| Extras | microSD slot on many red modules |
