52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
import time
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from math import sin
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import board
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import displayio
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import rgbmatrix
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import framebufferio
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import adafruit_imageload
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import terminalio
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from adafruit_display_text.label import Label
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displayio.release_displays()
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matrix = rgbmatrix.RGBMatrix(
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width=64, bit_depth=6,
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rgb_pins=[board.D6, board.D5, board.D9, board.D11, board.D10, board.D12],
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addr_pins=[board.D25, board.D24, board.A3, board.A2],
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clock_pin=board.D13, latch_pin=board.D0, output_enable_pin=board.D1,
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doublebuffer=True)
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display = framebufferio.FramebufferDisplay(matrix, auto_refresh=False)
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g = displayio.Group()
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b, p = adafruit_imageload.load("pi-logo32b.bmp")
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t = displayio.TileGrid(b, pixel_shader=p)
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t.x = 20
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g.append(t)
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l = Label(text="Feather\nRP2040", font=terminalio.FONT, color=0xffffff, line_spacing=.7)
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g.append(l)
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display.show(g)
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target_fps = 50
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ft = 1/target_fps
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now = t0 = time.monotonic_ns()
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deadline = t0 + ft
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p = 1
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q = 17
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while True:
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tm = (now - t0) * 1e-9
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x = l.x - 1
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if x < -40:
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x = 63
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y = round(12 + sin(tm / p) * 6)
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l.x = x
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l.y = y
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display.refresh(target_frames_per_second=target_fps, minimum_frames_per_second=0)
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while True:
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now = time.monotonic_ns()
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if now > deadline:
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break
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time.sleep((deadline - now) * 1e-9)
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deadline += ft
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