kopia lustrzana https://github.com/pimoroni/pimoroni-pico
55 wiersze
1.6 KiB
Python
55 wiersze
1.6 KiB
Python
# This example borrows a CircuitPython hsv_to_rgb function to cycle through some rainbows on Pico Display's screen and RGB LED . If you're into rainbows, HSV (Hue, Saturation, Value) is very useful!
|
|
# We're using a RAM intensive 64K colour palette here to get a nice smooth colour transition.
|
|
|
|
import time
|
|
from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY, PEN_RGB565
|
|
from pimoroni import RGBLED
|
|
|
|
display = PicoGraphics(display=DISPLAY_PICO_DISPLAY, pen_type=PEN_RGB565, rotate=0)
|
|
display.set_backlight(0.8)
|
|
|
|
led = RGBLED(6, 7, 8)
|
|
|
|
WIDTH, HEIGHT = display.get_bounds()
|
|
|
|
BLACK = display.create_pen(0, 0, 0)
|
|
|
|
|
|
# From CPython Lib/colorsys.py
|
|
def hsv_to_rgb(h, s, v):
|
|
if s == 0.0:
|
|
return v, v, v
|
|
i = int(h * 6.0)
|
|
f = (h * 6.0) - i
|
|
p = v * (1.0 - s)
|
|
q = v * (1.0 - s * f)
|
|
t = v * (1.0 - s * (1.0 - f))
|
|
i = i % 6
|
|
if i == 0:
|
|
return v, t, p
|
|
if i == 1:
|
|
return q, v, p
|
|
if i == 2:
|
|
return p, v, t
|
|
if i == 3:
|
|
return p, q, v
|
|
if i == 4:
|
|
return t, p, v
|
|
if i == 5:
|
|
return v, p, q
|
|
|
|
|
|
h = 0
|
|
|
|
while True:
|
|
h += 1
|
|
r, g, b = [int(255 * c) for c in hsv_to_rgb(h / 360.0, 1.0, 1.0)] # rainbow magic
|
|
led.set_rgb(r, g, b) # Set LED to a converted HSV value
|
|
RAINBOW = display.create_pen(r, g, b) # Create pen with converted HSV value
|
|
display.set_pen(RAINBOW) # Set pen
|
|
display.clear() # Fill the screen with the colour
|
|
display.set_pen(BLACK) # Set pen to black
|
|
display.text("pico disco!", 10, 10, 240, 6) # Add some text
|
|
display.update() # Update the display
|
|
time.sleep(1.0 / 60)
|