remind.py 文件源码

def flash_random(flash_count, delay):
    # Copied from https://github.com/pimoroni/unicorn-hat/blob/master/python/examples/random_blinky.py
    for index in range(flash_count):
        rand_mat = np.random.rand(8, 8)
        for y in range(8):
            for x in range(8):
                h = 0.1 * rand_mat[x, y]
                s = 0.8
                v = rand_mat[x, y]
                rgb = colorsys.hsv_to_rgb(h, s, v)
                r = int(rgb[0] * 255.0)
                g = int(rgb[1] * 255.0)
                b = int(rgb[2] * 255.0)
                lights.set_pixel(x, y, r, g, b)
        lights.show()
        time.sleep(delay)
        lights.off()
        time.sleep(delay)