Display on 240x320 ST7789 SPI IPS TFT using Raspberry Pi Pico/CircuitPython 7

Steps to prepare libraries and code to display on 2.0" 240x320 (RBG) IPS w/ ST7789V2 SPI driver using Raspberry Pi Pico/CircuitPython 7.3.3.

Visit https://circuitpython.org/libraries, download and extract library bundle match with your CircuitPython version.

Copy adafruit_display_text folder and adafruit_st7789.mpy from /lib folder to CircuitPython device /lib folder.

Copy st7789_320x240_simpletest.py from examples, name it cpyPico_st7789_320x240_simpletest.py. Edit for st7789 display on Raspberry Pi Pico, include pins connection.

cpyPico_st7789_320x240_simpletest.py

# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

"""
This test will initialize the display using displayio and draw a solid green
background, a smaller purple rectangle, and some yellow text.
"""
import board
import terminalio
import displayio
from adafruit_display_text import label
from adafruit_st7789 import ST7789

import busio

# Release any resources currently in use for the displays
displayio.release_displays()
"""
spi = board.SPI()
tft_cs = board.D5
tft_dc = board.D6

display_bus = displayio.FourWire(
    spi, command=tft_dc, chip_select=tft_cs, reset=board.D9
)

display = ST7789(display_bus, width=320, height=240, rotation=90)
"""

# --- Setup st7789 display---
# Define GPIOs for ST7789
tft_SCL = board.GP2
tft_SDA = board.GP3
tft_RES = board.GP4
tft_DC = board.GP0
tft_CS = board.GP1

# On CircuitPython for Raspberry Pi Pico
# 'module' object has no attribute 'SPI'
#spi = board.SPI()
tft_spi = busio.SPI(clock=tft_SCL, MOSI=tft_SDA)
display_bus = displayio.FourWire(tft_spi, command=tft_DC, chip_select=tft_CS, reset=tft_RES)
display = ST7789(display_bus, width=320, height=240, rotation=270)
# -------------

# Make the display context
splash = displayio.Group()
display.show(splash)

color_bitmap = displayio.Bitmap(320, 240, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0x00FF00  # Bright Green

bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
splash.append(bg_sprite)

# Draw a smaller inner rectangle
inner_bitmap = displayio.Bitmap(280, 200, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0xAA0088  # Purple
inner_sprite = displayio.TileGrid(inner_bitmap, pixel_shader=inner_palette, x=20, y=20)
splash.append(inner_sprite)

# Draw a label
text_group = displayio.Group(scale=3, x=57, y=120)
text = "Hello World!"
text_area = label.Label(terminalio.FONT, text=text, color=0xFFFF00)
text_group.append(text_area)  # Subgroup for text scaling
splash.append(text_group)

while True:
    pass

Connection:

---

next:
~ ov2640 (Red board without MCLK) on Raspberry Pi Pico/CircuitPython 7 & 8 Beta