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Add PiTFT example and more hardware links

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Melissa LeBlanc-Williams 2020-06-09 11:03:55 -07:00
parent 6606bfbccb
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14
adafruit_ili9341.py
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@ -32,6 +32,20 @@ Implementation Notes
**Hardware:**
* Adafruit PiTFT 2.2" HAT Mini Kit - 320x240 2.2" TFT - No Touch
<https://www.adafruit.com/product/2315>
* Adafruit PiTFT 2.4" HAT Mini Kit - 320x240 TFT Touchscreen
<https://www.adafruit.com/product/2455>
* Adafruit PiTFT - 320x240 2.8" TFT+Touchscreen for Raspberry Pi
<https://www.adafruit.com/product/1601>
* PiTFT 2.8" TFT 320x240 + Capacitive Touchscreen for Raspberry Pi
<https://www.adafruit.com/product/1983>
* Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchscreen
<https://www.adafruit.com/product/2423>
* PiTFT Plus Assembled 320x240 2.8" TFT + Resistive Touchscreen
<https://www.adafruit.com/product/2298>
* PiTFT Plus 320x240 3.2" TFT + Resistive Touchscreen
<https://www.adafruit.com/product/2616>
* 2.2" 18-bit color TFT LCD display with microSD card breakout
<https://www.adafruit.com/product/1480>
* 2.4" TFT LCD with Touchscreen Breakout Board w/MicroSD Socket

52
examples/ili9341_pitft_simpletest.py Normal file
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@ -0,0 +1,52 @@
"""
This test will initialize the display using displayio and draw a solid green
background, a smaller purple rectangle, and some yellow text. All drawing is done
using the displayio module.
Pinouts are for the PiTFT and should be run in CPython.
"""
import board
import terminalio
import displayio
from adafruit_display_text import label
import adafruit_ili9341
# Release any resources currently in use for the displays
displayio.release_displays()
spi = board.SPI()
tft_cs = board.CE0
tft_dc = board.D25
display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)
# Make the display context
splash = displayio.Group(max_size=10)
display.show(splash)
# Draw a green background
color_bitmap = displayio.Bitmap(display.width, display.height, 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(display.width - 40, display.height - 40, 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(max_size=10, 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