ILI9340 TFT LCD controller connection guide

• 3.3 V breakout supply
  • VIN (2)
  • Regulated module supply
• Ground
  • GND (1)
  • Host ground
• Chip select
  • CS (6)
  • Host GPIO
• Display reset
  • RST (4)
  • Host reset GPIO
• Command / data
  • D/C (3)
  • Host D/C GPIO
• Serial clock
  • SCK (9)
  • Host SCK
• Host to display
  • MOSI (7)
  • Host MOSI

Bench checks

• Confirm supply and ground at the module before starting the panel. Observe reset, chip select and clock with a logic analyzer if the panel stays blank.
• Run the Adafruit ILI9340 graphicstest and confirm that the fill colors and text render. If the backlight works but the display stays blank, check CS, D/C and reset during initialization.

Adafruit product 1480, 2.2-inch TFT Display guide, Pinouts and original board photograph. ILI Technology ILI9340 datasheet, MCU interface and command descriptions.

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

The pin map follows the 10 through-holes on the original Adafruit 1480 board marked ILI9340C. On the front of the board, the map starts at GND and ends at BL. Adafruit’s newer board guide also describes an EYESPI connector.

Adafruit 1480 (ILI9340C)

Original 2.2-inch 240 × 320 board, 10-contact header, ordered from GND toward BL.

• Adafruit 1480 (ILI9340C board) manufacturer documentation· Adafruit product 1480, 2.2-inch TFT Display guide, Pinouts and original board photograph.
• ILI9340 controller datasheet· ILI Technology ILI9340 datasheet, MCU interface and command descriptions.