69 lines
1.8 KiB
Python
69 lines
1.8 KiB
Python
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import epaper
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import microbmp
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import time
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import gc
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colormap = [
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[0x00, 0x00, 0x00], # black
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[0xff, 0xff, 0xff], # white
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[0x00, 0xdd, 0x00], # green
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[0x00, 0x00, 0xee], # blue
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[0x00, 0xdd, 0x00], # red
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[0xff, 0xdd, 0x00], # yellow
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[0xff, 0x88, 0x00], # orange
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]
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images = ["lambo.bmp", "fallout.bmp", "nasa.bmp"]
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gc.enable()
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def init_display():
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#print("ePaper init ", str(time.localtime()))
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epd = epaper.EPD_5in65()
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epd.fill(epd.White)
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return epd
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def draw_image(filename):
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global epd
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global colormap
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def color_distance(c1, c2):
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def dist(a, b):
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return abs(a - b)
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return dist(c1[0], c2[0]) + dist(c1[1], c2[1]) + dist(c1[2], c2[2])
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def callback(x, y, color):
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global epd
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global colormap
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best_index = 0
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best_score = 256
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for index in range(len(colormap)):
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c = colormap[index]
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score = color_distance(c, color)
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if score < best_score:
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best_score = score
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best_index = index
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pixel = best_index
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#print("PXL ", str([color, r,g,b, pixel]))
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epd.pixel(x, y, pixel)
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#print("BMP ", filename, " loading ", str(time.localtime()))
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epd.fill(epd.White)
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microbmp.MicroBMP(data_callback=callback).load(filename)
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#print("BMP loaded ", str(time.localtime()))
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epd.EPD_5IN65F_Display(epd.buffer)
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#print("ePaper printed ", str(time.localtime()))
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# MAIN
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epd = init_display()
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while True:
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for filename in images:
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epd.EPD_5IN65F_Init()
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print("TV loading image ", filename)
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draw_image(filename)
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epd.Sleep()
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print("TV showing ", filename)
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gc.collect()
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epd.delay_ms(10000)
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