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how can i connect these two?
kofron

kofron

@copilot how can i connect these two?
3y

copilot

To connect the RP2040 microcontroller (U1) to the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), you'll need to connect the SPI interface, the display control signals, and the power supply. Here's a suggested connection list:
  • SPI interface:
    • U1.GPIO12 (SPI0_MISO) ⟶ U2.MISO
    • U1.GPIO11 (SPI0_SCK) ⟶ U2.SCK
    • U1.GPIO10 (SPI0_MOSI) ⟶ U2.MOSI
  • Display control signals:
    • U1.GPIO9 ⟶ U2.D/C
    • U1.GPIO8 ⟶ U2.RESET
    • U1.GPIO7 ⟶ U2.CS
  • Touchscreen SPI interface (optional, if you want to use the touchscreen feature):
    • U1.GPIO6 ⟶ U2.T_CS
    • U1.GPIO11 (SPI0_SCK) ⟶ U2.T_CLK
    • U1.GPIO10 (SPI0_MOSI) ⟶ U2.T_DIN
    • U1.GPIO12 (SPI0_MISO) ⟶ U2.T_DO
    • U1.GPIO5 ⟶ U2.T_IRQ
  • Power supply:
    • Connect a 3.3V power source to U2.VCC and U1.IOVDD.
    • Connect GND to both U1.GND and U2.GND.
  • For the LED backlight, connect U2.LED to a 3.3V power source through a current-limiting resistor (typically 100 Ohm to 150 Ohm).
Note: This connection list assumes you're using SPI0 of the RP2040. You can choose other GPIO pins for the display control signals and touchscreen SPI interface if needed, but make sure to update your software accordingly.
3y
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