TFT Color Display Ilitek ILI9341/ILI9342 SPI

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File:TArduinoTFTILI9341.png

Summary

TFT color display module using the Ilitek ILI9341/ILI9342 controllers with SPI interface. Supports full-color rendering, inversion, mirroring, and multiple orientation modes.

Description

The ILI9341/ILI9342 TFT Color Display (SPI) is a popular display controller family widely used in embedded systems. It provides reliable SPI-based communication with adjustable bus speed, and supports orientation, inversion, and mirroring. With hardware-accelerated graphics, the driver enables smooth rendering of text, images, and graphical primitives for GUIs and visualization. Typical modules feature 240×320 pixel resolution.

Diagram:


Properties

  • Background Color – Default background color of the display.
  • Elements – Configurable rendering elements (Text, Bitmap, Graphics, etc.).
  • Inverted – Boolean flag for color inversion.
  • Mirror – Horizontal/Vertical flip (boolean).
  • Orientation – Screen orientation (goUp, goDown, goLeft, goRight).
  • SPISpeed – SPI bus speed.
  • Text – Default text properties for rendering.

Elements

  • Text – Displays text using configurable font and style.
  • Render Event – Triggers external rendering events.
  • Draw Bitmap – Renders bitmap images.
  • Fill Screen – Fills the screen with a chosen color.
  • Scroll – Scrolls text or graphics across the display.
  • Graphics – General graphic primitives rendering.
  • Draw Scene – Renders predefined graphical scenes.
  • Image – Displays stored image data.
  • Pixels – Direct control over individual pixels.
  • Lines – Draws straight lines between two points.
  • Shapes – Draws basic shapes (rectangles, circles, etc.).

Pins

Input Pins

  • In (text) – Text input for display rendering.
  • Elements – When display elements are added, they create their own input and clock pins automatically.
  • Refresh – Clock input to refresh/redraw the display.

Output Pins

  • Reset – Digital reset control for the display.
  • Control – SPI communication bus connection.
  • Chip Select – Digital chip select line for display addressing.
  • Data/Command – Digital control pin to switch between data and command mode.

Categories

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