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3.8 Inch LCD Touchscreen Connection Help

Former Member

Hi, I was wondering as I can't seem to find any pinout matching my Touchscreen does anyone know which wires I should connect?

My screen has 34 Pins:

 

 

1: CS                   18: RS

2: WR                  19: RD

3: RST                 20: DO

4: D1                   21: D2

5: D3                   22: D4

6: D5                   23: D6

7: D7                   24: D8

8: D9                   25: D10

9: D11                 26: D12

10: D13               27: D14

11: D15               28: GND

12: BL                 29: VDD

13: CDD              30: GND

14: GND              31: 5v

15: MI                  32: M0

16: PEN              33: NC

17: TCS              34: CLK

 

 

 

 

Many thanks

Parents

  • Just to get it the display working, I THINK you should need to hook up at least:

    CS - Should be chip select (or enable), will likely need to be active (LOW?) to be able to access (read from/write to) the display.

    WR - Should be the write enable line for the display (LOW when you want to send data to the device).

    D0-D15 - is the display data bus (16-bit)

    GND, VDD (Could be 3.3 or 5V), +5V should be obvious

    RST - Reset pin, usually active LOW, so HI to prevent reset after initialization

    RD - Read pin (LOW to READ data from the device registers)

    CDD - May be Command/Data selection line (HIGH/LOW to write commands/data to the device registers)

    BL - Probably Backlight

     

    I'm assuming that the MI, MO, CLK and TCS pins are for the touch screen

     

    Then you'll probably want to DL some libraries to get stuff on the screen.

Reply

  • Just to get it the display working, I THINK you should need to hook up at least:

    CS - Should be chip select (or enable), will likely need to be active (LOW?) to be able to access (read from/write to) the display.

    WR - Should be the write enable line for the display (LOW when you want to send data to the device).

    D0-D15 - is the display data bus (16-bit)

    GND, VDD (Could be 3.3 or 5V), +5V should be obvious

    RST - Reset pin, usually active LOW, so HI to prevent reset after initialization

    RD - Read pin (LOW to READ data from the device registers)

    CDD - May be Command/Data selection line (HIGH/LOW to write commands/data to the device registers)

    BL - Probably Backlight

     

    I'm assuming that the MI, MO, CLK and TCS pins are for the touch screen

     

    Then you'll probably want to DL some libraries to get stuff on the screen.

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