except ImportError:
exit(
"This script requires the numpy module\nInstall with: sudo pip install numpy"
)
import rainbowhat as rainbow
print("""Rainbow Blinky
Blinks a rainbow from the center of 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.AUTO)
rainbow.rotation(0) # tested on pHAT/HAT with rotation 0, 90, 180 & 270
rainbow.brightness(0.5)
width, height = rainbow.get_shape()
if height == width:
delta = 0
else:
delta = 2
def make_gaussian(fwhm):
x = numpy.arange(0, 8, 1, float)
y = x[:, numpy.newaxis]
x0, y0 = 3.5, 3.5
fwhm = fwhm
import time
from sys import exit
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 __init__(self, rotation, brightness):
rainbow.set_layout(rainbow.PHAT)
rainbow.rotation(rotation)
rainbow.brightness(brightness)
self.width, self.height = rainbow.get_shape()
