def setBrightness(currenttime):
currenthour = currenttime.tm_hour
# if it's between 10 am and 8 pm,
# use dimmer brightness
if (currenthour < 10 or currenthour > 20):
rainbow.brightness(0.5)
else:
rainbow.brightness(0.8)
try:
import glib
except ImportError:
exit("This script requires the glib module")
try:
import gudev
except ImportError:
exit("This script requires the gudev module")
import rainbowhat as rainbow
rainbow.set_layout(rainbow.HAT)
rainbow.rotation(0)
rainbow.brightness(0.5)
sin_off = [[0] * 8 for i in range(8)]
for y in range(8):
for x in range(8):
sin_off[x][y] = random.random() * (math.pi * 2)
tick_mask = [[0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 1, 0],
[0, 0, 0, 0, 0, 1, 1, 1], [0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 1, 1, 1, 1, 0, 0], [0, 0, 1, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0]]
steps_per = 16
def background(x, y, step):
import rainbowhat as uh
import time
from random import randint
uh.rotation(0)
uh.brightness(0.5)
heights = []
def setup():
global heights
heights = []
for b in range(0, 6):
heights.append(0)
uh.off()
for b in range(0, 8):
uh.set_pixel(0, b, 255, 255, 255)
for b in range(0, 8):
uh.set_pixel(7, b, 255, 255, 255)
for b in range(1, 7):
uh.set_pixel(b, 0, 255, 255, 255)
uh.show()
def drop_ball():
ball_colour = [randint(100, 255), randint(100, 255), randint(100, 255)]
ball_column = randint(0, 5)
while heights[ball_column] == 7:
#!/usr/bin/env python
import time
import rainbowhat as rainbow
print("""Simple
Turns each pixel on in turn and updates the display.
If you're using a Rainbow HAT and only half the screen lights up,
edit this example and change 'rainbow.AUTO' to 'rainbow.HAT' below.
""")
rainbow.set_layout(rainbow.HAT)
#rainbow.set_layout(rainbow.AUTO)
rainbow.rotation(0)
rainbow.brightness(0.3)
width, height = rainbow.get_shape()
for y in range(height):
for x in range(width):
rainbow.set_pixel(x, y, 0, 0, 254)
rainbow.show()
time.sleep(0.05)
time.sleep(1)
#!/usr/bin/env python
import rainbowhat as rainbow
import time, colorsys
import numpy as np
import random
rainbow.brightness(0.4)
def make_gaussian(fwhm, x0, y0):
x = np.arange(0, 8, 1, float)
y = x[:, np.newaxis]
fwhm = fwhm
gauss = np.exp(-4 * np.log(2) * ((x - x0)**2 + (y - y0)**2) / fwhm**2)
return gauss
while True:
x0 = random.random() * 8
y0 = random.random() * 8
h = random.random()
for z in range(1, 5)[::-1] + range(1, 10):
fwhm = 5.0 / z
gauss = make_gaussian(fwhm, x0, y0)
for y in range(8):
for x in range(8):
s = 0.8
v = gauss[x, y]
rgb = colorsys.hsv_to_rgb(h, s, v)
r = int(rgb[0] * 255.0)
#!/usr/bin/env python
import rainbowhat as rainbow
from random import randint
import time
rainbow.brightness(0.20)
rainbow.rotation(90)
wrd_rgb = [[154, 173, 154], [0, 255, 0], [0, 200, 0], [0, 162, 0], [0, 145, 0],
[0, 96, 0], [0, 74, 0], [
0,
0,
0,
]]
clock = 0
blue_pilled_population = [[randint(0, 7), 7]]
while True:
for person in blue_pilled_population:
y = person[1]
for rgb in wrd_rgb:
if (y <= 7) and (y >= 0):
rainbow.set_pixel(person[0], y, rgb[0], rgb[1], rgb[2])
y += 1
person[1] -= 1
rainbow.show()
time.sleep(0.1)
clock += 1
if clock % 5 == 0:
import rainbowhat as rainbow
print("""Demo
This pixel shading demo transitions between 4 classic graphics demo effects.
If you're using a Rainbow HAT and only half the screen lights up,
edit this example and change 'rainbow.AUTO' to 'rainbow.HAT' below.
""")
#rainbow.set_layout(rainbow.AUTO)
rainbow.set_layout(rainbow.HAT)
rainbow.rotation(0) # tested on pHAT/HAT with rotation 0, 90, 180 & 270
#rainbow.brightness(0.4)
rainbow.brightness(1.0)
u_width, u_height = rainbow.get_shape()
# twisty swirly goodness
def swirl(x, y, step):
x -= (u_width / 2)
y -= (u_height / 2)
dist = math.sqrt(pow(x, 2) + pow(y, 2)) / 2.0
angle = (step / 10.0) + (dist * 1.5)
s = math.sin(angle)
c = math.cos(angle)
xs = x * c - y * s
ys = x * s + y * c
def __init__(self, rotation, brightness):
rainbow.set_layout(rainbow.PHAT)
rainbow.rotation(rotation)
rainbow.brightness(brightness)
self.width, self.height = rainbow.get_shape()
