pimoroni-pico/micropython/examples/pico_display/basic_qrcode.py

48 wiersze
1.1 KiB
Python

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