How to control the display (part of Pimoroni Explorer pim550)

I like to control the display of the Pimoroni Explorer with a program written in the Arduino IDE (based on C++). With this IDE 2 and adding in Preferences a board manager from ephilhower (Github) as a package_rp2040_index.json then I have made it possible to blink the on-board LED, reading out the on-board temperature sensor as well as an external BME280 temperature/humidity sensor.
Now I like to know which libraries I need to control this display (maybe display.h?).
Is such documentation available to write some code in the Arduino IDE 2?

Is there a typenumber of that display available?

This might help.
2.8” IPS LCD screen (320 x 240 pixels)

  • Driver IC: ST7789V

No, the display on the PIM550 (old version of explorer) is 240x240. I think it is still a ST7789, so the standard ST7789 driver of Arduino should work.

You are even better off with the old explorer: the newer explorer does not use SPI to connect to the display, so the normal Arduino ST7789 drivers won’t work.

Ops my bad, I didn’t properly look it up. Sorry about that.
It’s as he said a

  • 1.54" IPS LCD screen (240 x 240)

The breakout for that LCD uses an

  • ST7789V driver chip
    I suspect it’s the same for the explorer.