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41 lines
878 B
Python
41 lines
878 B
Python
import ST7735
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from PIL import Image, ImageDraw
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from enviroplus.noise import Noise
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print("""noise-profile.py - Get a simple noise profile.
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This example grabs a basic 3-bin noise profile of low, medium and high frequency noise, plotting the noise characteristics as coloured bars.
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Press Ctrl+C to exit!
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""")
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noise = Noise()
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disp = ST7735.ST7735(
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port=0,
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cs=ST7735.BG_SPI_CS_FRONT,
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dc=9,
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backlight=12,
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rotation=90)
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disp.begin()
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img = Image.new('RGB', (disp.width, disp.height), color=(0, 0, 0))
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draw = ImageDraw.Draw(img)
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while True:
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low, mid, high, amp = noise.get_noise_profile()
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low *= 128
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mid *= 128
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high *= 128
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amp *= 64
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img2 = img.copy()
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draw.rectangle((0, 0, disp.width, disp.height), (0, 0, 0))
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img.paste(img2, (1, 0))
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draw.line((0, 0, 0, amp), fill=(int(low), int(mid), int(high)))
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disp.display(img)
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