48 lines
1.1 KiB
Python
48 lines
1.1 KiB
Python
from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY
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import qrcode
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display = PicoGraphics(display=DISPLAY_PICO_DISPLAY, rotate=0)
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display.set_backlight(1.0)
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WIDTH, HEIGHT = display.get_bounds()
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BG = display.create_pen(0, 0, 0)
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FG = display.create_pen(255, 255, 255)
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def measure_qr_code(size, code):
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w, h = code.get_size()
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module_size = int(size / w)
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return module_size * w, module_size
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def draw_qr_code(ox, oy, size, code):
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size, module_size = measure_qr_code(size, code)
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display.set_pen(FG)
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display.rectangle(ox, oy, size, size)
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display.set_pen(BG)
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for x in range(size):
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for y in range(size):
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if code.get_module(x, y):
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display.rectangle(ox + x * module_size, oy + y * module_size, module_size, module_size)
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code = qrcode.QRCode()
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code.set_text("shop.pimoroni.com")
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display.set_pen(FG)
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display.clear()
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display.set_pen(BG)
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max_size = min(WIDTH, HEIGHT)
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size, module_size = measure_qr_code(max_size, code)
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left = int((WIDTH // 2) - (size // 2))
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top = int((HEIGHT // 2) - (size // 2))
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draw_qr_code(left, top, max_size, code)
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display.update()
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while True:
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pass
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