Notes.txt

TFT control with CS tied to GND:

https://github.com/Bodmer/TFT_eSPI/issues/163

https://www.instructables.com/Adding-CS-Pin-to-13-LCD/

These Adafruit modules solve the CS pin problem and have an onboard micro SD
card slot, but they're very expensive. We could make different carrier
boards for this or the dodgy AliExpress ones that don't have CS. Maybe a
tri-state buffer on the carrier board to avoid having to rework the cheap
displays?

https://learn.adafruit.com/adafruit-1-3-and-1-54-240-x-240-wide-angle-tft-lcd-displays?view=all

Pins required:
Pin  ESP32          LCD
1    GND            GND
2    3.3V           VCC (should be compatible with either 3.3V or 5V)
3    IO18_SCLK      TFT_SCLK
4    IO23_COPI      TFT_COPI
5    IO4_TFT_RST    TFT_RST
6    IO2_TFT_DC     TFT_DC
7    IO ?           TFT_BLK (backlight control)
8    IO ?           TFT_CS (doesn't exist on cheap module: control buffer?)

  IO22   TFT_CIPO (not used on cheap module: required for Adafruit with micro SD card)