65 lines
1.5 KiB
Python
65 lines
1.5 KiB
Python
import gc
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import time
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from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY, PEN_RGB332
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# PEN_RGB332 is an 8 bit, fixed 256 colour palette which conserves your RAM.
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# Try switching the pen_type to PEN_RGB565 (16 bit, 65K colour) and see the difference!
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display = PicoGraphics(DISPLAY_PICO_DISPLAY, pen_type=PEN_RGB332, rotate=0)
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# set up constants for drawing
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WIDTH, HEIGHT = display.get_bounds()
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BLACK = display.create_pen(0, 0, 0)
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def free(full=False):
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# Calculates RAM usage
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gc.collect()
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F = gc.mem_free()
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A = gc.mem_alloc()
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T = F + A
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P = '{0:.2f}%'.format(F / T * 100)
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if not full:
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return P
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else:
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return (f"Total RAM \n{T} KB \nUnused RAM \n{F} KB \n({P} free)")
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def hsv_to_rgb(h, s, v):
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# From CPython Lib/colorsys.py
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if s == 0.0:
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return v, v, v
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i = int(h * 6.0)
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f = (h * 6.0) - i
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p = v * (1.0 - s)
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q = v * (1.0 - s * f)
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t = v * (1.0 - s * (1.0 - f))
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i = i % 6
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if i == 0:
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return v, t, p
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if i == 1:
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return q, v, p
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if i == 2:
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return p, v, t
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if i == 3:
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return p, q, v
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if i == 4:
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return t, p, v
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if i == 5:
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return v, p, q
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h = 0
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while True:
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h += 1
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r, g, b = [int(255 * c) for c in hsv_to_rgb(h / 360.0, 1.0, 1.0)] # rainbow magic
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display.set_pen(BLACK)
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RAINBOW = display.create_pen(r, g, b) # Create pen with converted HSV value
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display.set_pen(RAINBOW)
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display.set_font("bitmap8")
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display.text(free(full=True), 0, 0, WIDTH, 3)
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display.update()
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time.sleep(1.0 / 60)
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