3.5 inch TFT Arduino Shield Touchscreen (ILI9488) with raspberry Pi Pico

Projects General Guidance
1

I have 3.5 inch TFT Arduino Shield Touchscreen (ILI9488). Working great with Arduino. But in my other project, it is required to interface LCD with Raspberry Pi Pico. I tried the TFT_eSPI library. I got the display but have no clue about using the touchscreen.
Please help me out with this. Thanks in advance.

IMG_0028-e1543400079515-1024x768
IMG_0028-e1543400079515-1024x7681024×768 89.6 KB

2

You press the screen with Your finger...

Please read this topic "How to get the best out of this forum."

3

Thanks for your reply but this is not what I meant. Touchscreen is not working. Only the display works.

4

I figured it out myself only.

  1. Download MCUFRIEND_kbv Arduino Library.
  2. Open to Documents\Arduino\libraries\MCUFRIEND_kbv\utility\mcufriend_special.h
  3. Comment out //#define USE_MY_PICO
  4. Find out //RP2040 pin configuration on the same file and connect Raspberry Pi Pico with 3.5 inch TFT Touch Screen Arduino Shield accordingly.
  5. uncomment //#define USE_SPECIAL in Documents\Arduino\libraries\MCUFRIEND_kbv\utility\mcufriend_shield.h file.

Rsp_PI_LCD
Rsp_PI_LCD6061×4261 197 KB

5

Hello Harendra!
Could you please share the wiring scheme you used to connect the display to the Pico board?
I'm trying to do the same here using a similar board with an OrangePi 3-LTS but I'm having trouble trying to figure the display pins out.

1 Like
6

Please refer to the above diagram.

7

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.