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65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
"""ILI9341 demo (simple touch demo)."""
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from ili9341 import Display, color565
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from xpt2046 import Touch
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from machine import idle, Pin, SPI # type: ignore
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class Demo(object):
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"""Touchscreen simple demo."""
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CYAN = color565(0, 255, 255)
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PURPLE = color565(255, 0, 255)
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WHITE = color565(255, 255, 255)
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def __init__(self, display, spi2):
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"""Initialize box.
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Args:
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display (ILI9341): display object
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touch (XPT2046): touchscreen object
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"""
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self.display = display
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self.touch = Touch(spi2, cs=Pin(5), int_pin=Pin(0),
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int_handler=self.touchscreen_press)
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# Display initial message
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self.display.draw_text8x8(self.display.width // 2 - 32,
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self.display.height - 9,
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"TOUCH ME",
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self.WHITE,
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background=self.PURPLE)
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# A small 5x5 sprite for the dot
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self.dot = bytearray(b'\x00\x00\x07\xE0\xF8\x00\x07\xE0\x00\x00\x07\xE0\xF8\x00\xF8\x00\xF8\x00\x07\xE0\xF8\x00\xF8\x00\xF8\x00\xF8\x00\xF8\x00\x07\xE0\xF8\x00\xF8\x00\xF8\x00\x07\xE0\x00\x00\x07\xE0\xF8\x00\x07\xE0\x00\x00')
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def touchscreen_press(self, x, y):
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"""Process touchscreen press events."""
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# Y needs to be flipped
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y = (self.display.height - 1) - y
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# Display coordinates
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self.display.draw_text8x8(self.display.width // 2 - 32,
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self.display.height - 9,
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"{0:03d}, {1:03d}".format(x, y),
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self.CYAN)
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# Draw dot
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self.display.draw_sprite(self.dot, x - 2, y - 2, 5, 5)
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def test():
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"""Test code."""
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spi1 = SPI(1, baudrate=40000000, sck=Pin(14), mosi=Pin(13))
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display = Display(spi1, dc=Pin(4), cs=Pin(16), rst=Pin(17))
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spi2 = SPI(2, baudrate=1000000, sck=Pin(18), mosi=Pin(23), miso=Pin(19))
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Demo(display, spi2)
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try:
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while True:
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idle()
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except KeyboardInterrupt:
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print("\nCtrl-C pressed. Cleaning up and exiting...")
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finally:
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display.cleanup()
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test()
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