This is made for this 3.5" touchscreen from AliExpress on a Raspberry Pi running Trixie 64-bit Lite.

No need to install any additional drivers!

Install custom overlay from this repo:

• copy spi-ili9486.dtbo into /boot/firmware/overlays/

Edit config.txt:

• dtoverlay=vc4-fkms-v3d
• dtparam=spi=on
• dtoverlay=spi-ili9486,speed=64000000
• dtoverlay=ads7846,penirq=17,speed=3000000,penirq_pull=down,keep_vref_on=1,ti,x-plate-ohms=60

To run the python test program install:

• libegl-dev
• python3-pygame
• python3-evdev