Adafruit 1.44in TFT Display

# Test display of graphics on TFT 1.44"

import board,busio
from time import sleep
from adafruit_st7735r import ST7735R
import displayio
import terminalio
from adafruit_display_text import label

# Set up pins
MOSI = board.GP11
SCLK = board.GP10
RESET = board.GP17
CS = board.GP13
DC = board.GP16

# The display is offset a little
# You may need to experiment with these values if you rotate the display
XOFFSET = 2
YOFFSET = 3

# Set up display as an SPI device
displayio.release_displays()
spi = busio.SPI(clock=SCLK, MOSI=MOSI)
display_bus = displayio.FourWire(spi, command=DC, chip_select=CS, reset=RESET)
display = ST7735R(display_bus, rotation=0, width=128+XOFFSET, height=128+YOFFSET, colstart=XOFFSET, rowstart=YOFFSET) 

# Create a group on the display
group = displayio.Group()

# Draw rectangles as a border around the display
palette = displayio.Palette(1)
palette[0] = 0xAAAAAA  # grey
bitmap = displayio.Bitmap(1, 128, 1) # tall thin
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=0, y=0) # top line
group.append(rect)
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=127, y=0) # bottom line
group.append(rect)
bitmap = displayio.Bitmap(128, 1, 1) # short fat
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=0, y=0) # left line
group.append(rect)
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=0, y=127) # right line
group.append(rect)

# Draw a red rectangle and add to the group
bitmap = displayio.Bitmap(20, 20, 1)
palette = displayio.Palette(1)
palette[0] = 0xAA0000  
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=20, y=10)
group.append(rect)

# Draw a blue rectangle with lines in it and add to the group
bitmap = displayio.Bitmap(20, 20, 3) # 3-colour bitmap
palette = displayio.Palette(3)       # 3- colour palette
palette[0] = 0x0000ff                # blue
palette[1] = 0x00ff00                # green
palette[2] = 0xff0000                # red
rect = displayio.TileGrid(bitmap, pixel_shader=palette, x=20, y=40) # grid with colour 0
for x in range(5, 16):               # line of pixels
    bitmap[x, 5] = 1                 # colour 1
for x in range(5, 16):               # line of pixels
    bitmap[x, 10] = 2                # colour 2
group.append(rect)

# Draw a text label and add it to the group
label1 = label.Label(terminalio.FONT, text="Hello World", color=0x00FFFF)
label1.x = 20
label1.y = 80
group.append(label1)

# Draw a text label and add it to the group
label2 = label.Label(terminalio.FONT, text="Goodbye", color=0xFFFFFF)
label2.x = 20
label2.y = 100
group.append(label2)

# Display the group
display.show(group)

# Loop forever so you can see what you drew
while True:
    pass

# Test display of bitmap on TFT 1.44"

import board,busio
from time import sleep
from adafruit_st7735r import ST7735R
import displayio

# Set up pins
MOSI = board.GP11
SCLK = board.GP10
RESET = board.GP17
CS = board.GP13
DC = board.GP16

# The display is offset a little
# You may need to experiment with these values if you rotate the display
XOFFSET = 2
YOFFSET = 3

# Set up display as an SPI device
displayio.release_displays()
spi = busio.SPI(clock=SCLK, MOSI=MOSI)
display_bus = displayio.FourWire(spi, command=DC, chip_select=CS, reset=RESET)
display = ST7735R(display_bus, rotation=0, width=128+XOFFSET, height=128+YOFFSET, colstart=XOFFSET, rowstart=YOFFSET) 

# Setup the file as the bitmap data source
bitmap = displayio.OnDiskBitmap("/image.bmp")

# Create a TileGrid to hold the bitmap
tile_grid = displayio.TileGrid(bitmap, pixel_shader=bitmap.pixel_shader)

# Create a Group to hold the TileGrid
group = displayio.Group()

# Add the TileGrid to the Group
group.append(tile_grid)

# Add the Group to the Display
display.show(group)

# Loop forever so you can enjoy your image
while True:
    pass