def init_strip():
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA,
LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
strip.begin()
logging.info('neopixel LED strip initialized')
return strip
class NeoPixelRenderer(Renderer):
def __init__(self, led_dma=10, led_strip=ws.WS2811_STRIP_GRB):
super(NeoPixelRenderer, self).__init__()
self.led_dma = 10
self.led_strip = led_strip
self.strip = None
def setup(self, pixel_count, world):
super(NeoPixelRenderer, self).setup(pixel_count, world)
self.strip = Adafruit_NeoPixel( pixel_count,
LED_PIN,
LED_FREQ_HZ,
self.led_dma,
LED_INVERT,
LED_BRIGHTNESS,
LED_CHANNEL,
self.led_strip)
self.strip.begin()
self.log.debug("LED strip initialized")
for idx in range(0, pixel_count):
self.strip.setPixelColorRGB(idx, 0, 0, 0, 0)
self.strip.show()
self.log.debug("LED strip cleared")
def render_buffer(self, pixel_buffer):
super(NeoPixelRenderer, self).render_buffer(pixel_buffer)
if self._is_buffer_changed(pixel_buffer):
for idx, pixel in enumerate(pixel_buffer):
self.strip.setPixelColorRGB(idx, int(pixel.r), int(pixel.g), int(pixel.b)) # , int(pixel.w))
self.strip.show()
def __init__(self,
num,
gamma=gamma.NEOPIXEL,
c_order=ChannelOrder.RGB,
gpio=18,
ledFreqHz=800000,
ledDma=5,
ledInvert=False,
**kwds):
"""
num - Number of LED pixels.
gpio - GPIO pin connected to the pixels (must support PWM! GPIO 13 or 18 (pins 33 or 12) on RPi 3).
ledFreqHz - LED signal frequency in hertz (800khz or 400khz)
ledDma - DMA channel to use for generating signal (Between 1 and 14)
ledInvert - True to invert the signal (when using NPN transistor level shift)
"""
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
if gpio not in PIN_CHANNEL.keys():
raise ValueError('{} is not a valid gpio option!')
self._strip = Adafruit_NeoPixel(num, gpio, ledFreqHz, ledDma,
ledInvert, 255, PIN_CHANNEL[gpio],
0x081000)
# Intialize the library (must be called once before other functions).
self._strip.begin()
def setup_strand(self, gpio_pin, pixel_count, led_frequency, dma,
initial_brightness, invert, channel):
from neopixel import Adafruit_NeoPixel
self.strand = Adafruit_NeoPixel(pixel_count, gpio_pin, led_frequency,
dma, invert, initial_brightness,
channel)
self.strand.begin()
def __init__(self):
super().__init__()
self.strip = Adafruit_NeoPixel(cfg.LED_COUNT, cfg.LED_DATA_PIN,
cfg.LED_FREQ_HZ, cfg.LED_DMA,
cfg.LED_INVERT, cfg.LED_BRIGHTNESS,
cfg.LED_CHANNEL, cfg.LED_STRIP)
self.strip.begin()
def __init__(self):
random.seed()
self.__strip = Adafruit_NeoPixel(self.LED_COUNT, self.LED_PIN,
self.LED_FREQ_HZ, self.LED_DMA,
self.LED_INVERT,
self.LED_BRIGHTNESS)
self.__strip.begin()
def __init__(self, array: TileArray):
from neopixel import Adafruit_NeoPixel
# Create NeoPixel object with appropriate configuration.
self.strip = Adafruit_NeoPixel(array.size(), LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS,
LED_CHANNEL)
# Intialize the library (must be called once before other functions).
self.strip.begin()
self.array = array
def __init__(self, cfg):
nps = cfg['neopixel']
self.strip = Adafruit_NeoPixel(nps['led-count'], \
nps['led-pin'], nps['led-freq-hz'], nps['led-dma'], \
nps['led-invert'], nps['led-brightness'], nps['led-channel'])
self.reversed = cfg['custom']['reversed']
self.strip.begin()
class Led_Array(object):
def __init__(self):
self.LED_COUNT = 256 # Number of LED pixels.
self.LED_PIN = 18 # GPIO pin connected to the pixels (must support PWM!).
self.LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
self.LED_DMA = 5 # DMA channel to use for generating signal (try 5)
self.LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
self.LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
self.ROW_WIDTH = 8 # Number of LEDs in each row of the array
# Create NeoPixel object with appropriate configuration.
self.led_array = Adafruit_NeoPixel( self.LED_COUNT,
self.LED_PIN,
self.LED_FREQ_HZ,
self.LED_DMA,
self.LED_INVERT,
self.LED_BRIGHTNESS)
# Intialize the library (must be called once before other functions).
self.led_array.begin()
def _info(self):
return self.LED_COUNT, self.LED_PIN, self.LED_BRIGHTNESS, self.ROW_WIDTH
def setRowColor(self, row_number, color):
strip = self.led_array
start = 0 + row_number*self.ROW_WIDTH
end = start + self.ROW_WIDTH
for i in range(start, end):
strip.setPixelColor(i, color)
# strip.show()
def fill_up_to(self, row, color):
#strip = self.led_array
for i in range(row+1):
self.setRowColor(i,color)
def empty_array(self):
strip = self.led_array
for i in range(256):
strip.setPixelColorRGB(i,0,0,0)
# strip.show()
def render(self):
strip = self.led_array
strip.show()
def fill_rect(self, i, width, color):
start = i
end = start + width
if (end < start):
raise NameError('cant create a negative rectangle')
if(start > 31):
start = 31
end = 31
for i in range(start,end):
self.setRowColor(i,color)
def __init__(self):
self.ledCount_ = 100
self.height_ = 10
self.neopixel_ = Adafruit_NeoPixel(
self.ledCount_, # LED count
18, # LED pin
800000, # LED signal frequency (Hz)
10, # DMA channel
False, # Invert signal
100, # Brightness (0, 255)
0) # LED channel
self.neopixel_.begin()
def __init__(self, num, gamma=gamma.NEOPIXEL, c_order=ChannelOrder.RGB, ledPin=18, ledFreqHz=800000, ledDma=5, ledInvert=False):
"""
num - Number of LED pixels.
ledPin - GPIO pin connected to the pixels (must support PWM! pin 13 or 18 on RPi 3).
ledFreqHz - LED signal frequency in hertz (800khz or 400khz)
ledDma - DMA channel to use for generating signal (Between 1 and 14)
ledInvert - True to invert the signal (when using NPN transistor level shift)
"""
super(DriverPiWS281X, self).__init__(num, c_order=c_order, gamma=gamma)
self.gamma = gamma
self._strip = Adafruit_NeoPixel(num, ledPin, ledFreqHz, ledDma, ledInvert, 255, 0, 0x081000)
# Intialize the library (must be called once before other functions).
self._strip.begin()
class DriverPiWS281X(DriverBase):
def __init__(self, num, gamma=gamma.NEOPIXEL, c_order=ChannelOrder.RGB, ledPin=18, ledFreqHz=800000, ledDma=5, ledInvert=False):
"""
num - Number of LED pixels.
ledPin - GPIO pin connected to the pixels (must support PWM! pin 13 or 18 on RPi 3).
ledFreqHz - LED signal frequency in hertz (800khz or 400khz)
ledDma - DMA channel to use for generating signal (Between 1 and 14)
ledInvert - True to invert the signal (when using NPN transistor level shift)
"""
super(DriverPiWS281X, self).__init__(num, c_order=c_order, gamma=gamma)
self.gamma = gamma
self._strip = Adafruit_NeoPixel(num, ledPin, ledFreqHz, ledDma, ledInvert, 255, 0, 0x081000)
# Intialize the library (must be called once before other functions).
self._strip.begin()
# Set Brightness of the strip. A brightness of 0 is the darkest and 255 is
# the brightest
def setMasterBrightness(self, brightness):
self._strip.setBrightness(brightness)
# Push new data
def update(self, data):
# handle channel order and gamma correction
self._fixData(data)
data = self._buf
pixels = [tuple(data[(p * 3):(p * 3) + 3])
for p in range(len(data) / 3)]
for i in range(len(data) / 3):
self._strip.setPixelColor(i, NeoColor(pixels[i][0], pixels[i][1], pixels[i][2]))
self._strip.show()
def setup(self, pixel_count, world):
super(NeoPixelRenderer, self).setup(pixel_count, world)
self.strip = Adafruit_NeoPixel(pixel_count, LED_PIN, LED_FREQ_HZ,
self.led_dma, LED_INVERT,
LED_BRIGHTNESS, LED_CHANNEL,
self.led_strip)
self.strip.begin()
self.log.debug("LED strip initialized")
for idx in range(0, pixel_count):
self.strip.setPixelColorRGB(idx, 0, 0, 0, 0)
self.strip.show()
self.log.debug("LED strip cleared")
class PiWS281X(DriverBase):
"""
Driver for controlling WS281X LEDs via the rpi_ws281x C-extension.
Only supported on the Raspberry Pi 2 & 3
"""
def __init__(self, num, gamma=gamma.NEOPIXEL, c_order=ChannelOrder.RGB, gpio=18,
ledFreqHz=800000, ledDma=5, ledInvert=False, **kwds):
"""
num - Number of LED pixels.
gpio - GPIO pin connected to the pixels (must support PWM! GPIO 13 or 18 (pins 33 or 12) on RPi 3).
ledFreqHz - LED signal frequency in hertz (800khz or 400khz)
ledDma - DMA channel to use for generating signal (Between 1 and 14)
ledInvert - True to invert the signal (when using NPN transistor level shift)
"""
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
self._strip = Adafruit_NeoPixel(num, gpio, ledFreqHz,
ledDma, ledInvert, 255, 0, 0x081000)
# Intialize the library (must be called once before other functions).
self._strip.begin()
def set_brightness(self, brightness):
self._strip.setBrightness(brightness)
return True
def _compute_packet(self):
self._render()
data = self._buf
self._packet = [tuple(data[(p * 3):(p * 3) + 3]) for p in range(len(data) // 3)]
def _send_packet(self):
for i, p in enumerate(self._packet):
self._strip.setPixelColor(i, NeoColor(*p))
self._strip.show()
def initialize_led_strip(self):
self.led_strip = Adafruit_NeoPixel(num=self.number_of_leds_total,
pin=self.led_pin,
freq_hz=self.frequency_hz,
dma=self.dma,
invert=self.led_inverted,
brightness=self.led_brightness,
channel=self.led_pin_channel
)
self.led_strip.begin()
if debug:
print('\nInitialized Led strip... Obj: ', self.led_strip)
print()
def _get_strip():
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA,
LED_INVERT, LED_BRIGHTNESS)
strip.begin()
for i in range(0, strip.numPixels(), 1):
strip.setPixelColor(i, Color(0, 0, 0))
strip.setBrightness(100)
return strip
def __init__(
self, num, gamma=gamma.NEOPIXEL, c_order="RGB", gpio=18,
ledFreqHz=800000, ledDma=5, ledInvert=False,
color_channels=3, brightness=255, **kwds):
if not NeoColor:
raise ValueError(WS_ERROR)
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
if gpio not in PIN_CHANNEL.keys():
raise ValueError('{} is not a valid gpio option!')
try:
strip_type = STRIP_TYPES[color_channels]
except:
raise ValueError('In PiWS281X, color_channels must be either 3 or 4')
self._strip = Adafruit_NeoPixel(
num, gpio, ledFreqHz, ledDma, ledInvert, brightness,
PIN_CHANNEL[gpio], strip_type)
# Intialize the library (must be called once before other functions).
try:
self._strip.begin()
except RuntimeError as e:
if os.geteuid():
if os.path.basename(sys.argv[0]) in ('bp', 'bibliopixel'):
command = ['bp'] + sys.argv[1:]
else:
command = ['python'] + sys.argv
error = SUDO_ERROR.format(command=' '.join(command))
e.args = (error,) + e.args
raise
def __init__(self, leds, neopixel_gpio_pin, neopixel_frequency, neopixel_dma, neopixel_invert, neopixel_brightness, neopixel_channel, neopixel_strip):
print("[Neopixel][info] Initialising NeoPixel")
self.LEDS = leds
self.NEOPIXEL_GPIO_PIN = neopixel_gpio_pin
self.NEOPIXEL_FREQUENCY = neopixel_frequency
self.NEOPIXEL_DMA = neopixel_dma
self.NEOPIXEL_INVERT = neopixel_invert
self.NEOPIXEL_BRIGHTNESS = neopixel_brightness
self.NEOPIXEL_CHANNEL = neopixel_channel
self.NEOPIXEL_STRIP = neopixel_strip
self.neopixel = Adafruit_Neopixel(
self.LEDS,
self.NEOPIXEL_GPIO_PIN,
self.NEOPIXEL_FREQUENCY,
self.NEOPIXEL_DMA,
self.NEOPIXEL_INVERT,
self.NEOPIXEL_BRIGHTNESS,
self.NEOPIXEL_CHANNEL,
self.NEOPIXEL_STRIP
)
try:
self.neopixel.begin()
except AttributeError:
print("[Neopixel][error] An error occurred initialising NeoPixel")
def onJoin(self, details):
self._serial = get_serial()
self._prefix = 'io.crossbar.demo.iotstarterkit.{}.colorstrip'.format(self._serial)
self.log.info("Crossbar.io IoT Starterkit Serial No.: {serial}", serial=self._serial)
self.log.info("ColoramaDisplay connected: {details}", details=details)
# get custom configuration
cfg = self.config.extra
self._leds = Adafruit_NeoPixel(
cfg['led_count'],
cfg['led_pin'],
cfg['led_freq_hz'],
cfg['led_dma'],
cfg['led_invert'],
cfg['led_brightness'])
self._leds.begin()
for proc in [
(self.set_color, 'set_color'),
(self.get_color, 'get_color'),
(self.flash, 'flash'),
(self.lightshow, 'lightshow'),
(self.color_wipe, 'color_wipe'),
(self.theater_chase, 'theater_chase'),
(self.rainbow, 'rainbow'),
(self.rainbow_cycle, 'rainbow_cycle'),
(self.theater_chaserainbow, 'theater_chaserainbow'),
]:
yield self.register(proc[0], '{}.{}'.format(self._prefix, proc[1]))
yield self.color_wipe(255, 255, 255)
self.log.info("ColoramaDisplay ready!")
while True:
yield self.flash(delay=20, repeat=5)
yield self.set_color(40, 40, 40)
yield sleep(5)
cols = []
for i in range(3):
cols.append(random.randint(0, 255))
yield self.color_wipe(*cols, wait_ms=20, repeat=5)
def __init__(self):
# LED strip configuration:
self.led_count = 256 # Number of LED pixels.
self.led_pin = 18 # GPIO pin connected to the pixels (18 uses PWM!).
self.led_freq_hz = 800000 # LED signal frequency in hertz (usually 800khz)
self.led_dma = 10 # DMA channel to use for generating signal (try 10)
self.led_brightness = 15 # Set to 0 for darkest and 255 for brightest
self.led_invert = False # True to invert the signal (when using NPN transistor level shift)
self.led_channel = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
self.matrix = Adafruit_NeoPixel(self.led_count, self.led_pin,
self.led_freq_hz, self.led_dma,
self.led_invert, self.led_brightness,
self.led_channel)
self.matrix.begin()
self.frame = Frame(rows=8, cols=32)
def __init__(self):
self.LED_COUNT = 64 # Number of LED pixels.
self.LED_PIN = 18 # GPIO pin connected to the pixels (must support PWM!).
self.LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
self.LED_DMA = 5 # DMA channel to use for generating signal (try 5)
self.LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
self.LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
self.ROW_WIDTH = 8 # Number of LEDs in each row of the array
# Create NeoPixel object with appropriate configuration.
self.led_array = Adafruit_NeoPixel(self.LED_COUNT, self.LED_PIN,
self.LED_FREQ_HZ, self.LED_DMA,
self.LED_INVERT,
self.LED_BRIGHTNESS)
# Intialize the library (must be called once before other functions).
self.led_array.begin()
def __init__(self, config, wci):
"""
Initialization
"""
# Get the wordclocks wiring-layout
self.wcl = wiring.wiring(config)
self.wci = wci
try:
default_brightness = config.getint('wordclock_display',
'brightness')
except:
default_brightness = 255
print(
'WARNING: Default brightness value not set in config-file: '
'To do so, add a "brightness" between 1..255 to the [wordclock_display]-section.'
)
if config.getboolean('wordclock', 'developer_mode'):
from GTKstrip import GTKstrip
self.strip = GTKstrip(wci)
self.default_font = os.path.join(
'/usr/share/fonts/TTF/',
config.get('wordclock_display', 'default_font') + '.ttf')
else:
try:
from neopixel import Adafruit_NeoPixel, ws
self.strip = Adafruit_NeoPixel(
self.wcl.LED_COUNT, self.wcl.LED_PIN, self.wcl.LED_FREQ_HZ,
self.wcl.LED_DMA, self.wcl.LED_INVERT, default_brightness,
0, ws.WS2811_STRIP_GRB)
except:
print(
'Update deprecated external dependency rpi_ws281x. '
'For details see also https://github.com/jgarff/rpi_ws281x/blob/master/python/README.md'
)
self.default_font = os.path.join(
'/usr/share/fonts/truetype/freefont/',
config.get('wordclock_display', 'default_font') + '.ttf')
# Initialize the NeoPixel object
self.strip.begin()
self.default_fg_color = wcc.WWHITE
self.default_bg_color = wcc.BLACK
self.base_path = config.get('wordclock', 'base_path')
def __init__(self):
threading.Thread.__init__(self)
self.strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ,
LED_DMA, LED_INVERT, LED_BRIGHTNESS)
self.strip.begin()
self.exit = False
self.command = None
self.reply = None
self.lock = threading.Condition()
self.isConnected = False
self.isConnectedTick = 0
self.commandId = 0
logging.info("GpioThread initialized")
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Set up NeoPixel
self.np = Adafruit_NeoPixel(NUM_PIXELS, GPIO_PIN, brightness=INTENSITY)
self.np.begin()
self.led_grid = led_grid.LEDGrid(self.np, grid.SerpentinePattern.TOP_RIGHT,
width=MATRIX_WIDTH, height=MATRIX_HEIGHT)
class Led_Array(object):
def __init__(self):
self.LED_COUNT = 256 # Number of LED pixels.
self.LED_PIN = 18 # GPIO pin connected to the pixels (must support PWM!).
self.LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
self.LED_DMA = 5 # DMA channel to use for generating signal (try 5)
self.LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
self.LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
self.ROW_WIDTH = 8 # Number of LEDs in each row of the array
# Create NeoPixel object with appropriate configuration.
self.led_array = Adafruit_NeoPixel(
self.LED_COUNT, self.LED_PIN, self.LED_FREQ_HZ, self.LED_DMA, self.LED_INVERT, self.LED_BRIGHTNESS
)
# Intialize the library (must be called once before other functions).
self.led_array.begin()
def _info(self):
return self.LED_COUNT, self.LED_PIN, self.LED_BRIGHTNESS, self.ROW_WIDTH
def setRowColor(self, row_number, color):
strip = self.led_array
start = 0 + row_number * self.ROW_WIDTH
end = start + self.ROW_WIDTH
for i in range(start, end):
strip.setPixelColor(i, color)
# strip.show()
def fill_up_to(self, row, color):
# strip = self.led_array
for i in range(row + 1):
self.setRowColor(i, color)
def empty_array(self):
strip = self.led_array
for i in range(256):
strip.setPixelColorRGB(i, 0, 0, 0)
# strip.show()
def render(self):
strip = self.led_array
strip.show()
def main():
global radien
global streifen
global pix
global T
n = 0 #Zählervariable
neuesBild(path)
gp.setmode(gp.BCM) # Welche Nummern für die Pins verwendet werden
gp.setwarnings(False) # Keine Warnungen
gp.setup(MAGNET_PIN, gp.IN) # Anschluss
#Erschaffen des Led-Streifen-Objekts
streifen = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA,
LED_INVERT, LED_BRIGHTNESS)
streifen.begin() #initialisieren des LED-Streifens
startPrint() #Drucken der Anfangseinstellungen
while True:
t1 = time() #Startzeit der Umdrehung t1
if gp.input(MAGNET_PIN) == False: #Zeitmessung einmal je Umdrehung
w = 2 * pi / T #Berrechnen der Aktuellen Winkelgeschwindigkeit
while gp.input(MAGNET_PIN) == False:
t = time() - t1 #Ausrechnen der größe des Zeitabschnitts
if t < 5:
streifenBedienen(t, w)
streifen.show()
else:
for i in range(0, LED_COUNT):
streifen.setPixelColor(i, Color(0, 0, 0))
streifen.show()
n += 1
if n > 3: #jede dritte Umdrehung wird das bild neu in den Zwischenspeicher gepackt
n = 0
neuesBild("/home/pi/Bilder/Bild.")
print("\b\b\b\b\b\b\b" + str(int(w * 0.3 * 3.6)) + " km/h")
T = time() - t1 #Ausrechnen von T nach T = t2 - t1
class LEDStrip:
axis = None
green = None
red = None
blue = None
neopixel_Object = None
LED_COUNT = 38 # Number of LED pixels.
LED_PIN = None # GPIO pin connected to the pixels (18 uses PWM!).
LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10 # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
limitHeight = LED_COUNT
def __init__(self, axis, GPIO_Pin, LED_COUNT=38, LED_FREQ_HZ=800000, LED_DMA=10, LED_BRIGHTNESS=255,
LED_INVERT=False, LED_CHANNEL=0):
print("Initializing LED Strip on GPIO Pin " + str(GPIO_Pin))
from neopixel import Adafruit_NeoPixel
self.LED_COUNT = LED_COUNT
self.LED_PIN = GPIO_Pin
self.LED_FREQ_HZ = LED_FREQ_HZ
self.LED_DMA = LED_DMA
self.LED_BRIGHTNESS = LED_BRIGHTNESS
self.LED_INVERT = LED_INVERT
self.LED_CHANNEL = LED_CHANNEL
self.green = 0
self.red = 0
self.blue = 0
self.neopixel_Object = Adafruit_NeoPixel(self.LED_COUNT, self.LED_PIN, self.LED_FREQ_HZ, self.LED_DMA,
self.LED_INVERT, self.LED_BRIGHTNESS,
self.LED_CHANNEL)
self.neopixel_Object.begin()
updateColorsThread = Thread(target=self.updateColors)
updateColorsThread.start()
print("Started updateColors Thread")
def updateColors(self):
oldGreen = self.green
oldRed = self.red
oldBlue = self.blue
limit = 40
while True:
if self.green != oldGreen or self.red != oldRed or self.blue != oldBlue:
oldGreen = self.green
oldRed = self.red
oldBlue = self.blue
print("Green: " + "{:>3}".format(str(self.green)) + ", Red: " + "{:>3}".format(
str(self.red)) + ", Blue: " + "{:>3}".format(str(self.blue)) + "\n")
color = Color(self.green, self.red, self.blue)
for i in range(self.neopixel_Object.numPixels()):
if i < self.limitHeight:
self.neopixel_Object.setPixelColor(i, color)
self.neopixel_Object.show()
time.sleep(50 / 1000.0)
def main():
global radien
global streifen
global pix
global T
n = 0 #Zählervariable
neuesBild(path)
gp.setmode(gp.BCM) # Welche Nummern für die Pins verwendet werden
gp.setwarnings(False) # Keine Warnungen
gp.setup(MAGNET_PIN, gp.IN) # Anschluss
#Erschaffen des Led-Streifen-Objekts
streifen = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA,
LED_INVERT, LED_BRIGHTNESS)
streifen.begin() #initialisieren des LED-Streifens
startPrint() #Drucken der Anfangseinstellungen
while True:
t1 = time() #Startzeit der Umdrehung t1
if gp.input(MAGNET_PIN) == False: #Zeitmessung einmal je Umdrehung
w = 2 * pi / T #Berrechnen der Aktuellen Winkelgeschwindigkeit
while gp.input(MAGNET_PIN) == False:
t = time() - t1 #Ausrechnen der größe des Zeitabschnitts
if t < 5:
streifenBedienen(t, w)
streifen.show()
else:
for i in range(0, LED_COUNT):
streifen.setPixelColor(i, Color(0,0,0))
streifen.show()
n +=1
if n > 3: #jede dritte Umdrehung wird das bild neu in den Zwischenspeicher gepackt
n = 0
neuesBild("/home/pi/Bilder/Bild.")
print("\b\b\b\b\b\b\b" + str(int(w * 0.3*3.6)) + " km/h")
T = time() - t1 #Ausrechnen von T nach T = t2 - t1
def onJoin(self, details):
self._serial = get_serial()
self._prefix = u'io.crossbar.demo.iotstarterkit.{}.colorstrip'.format(
self._serial)
self.log.info("Crossbar.io IoT Starterkit Serial No.: {serial}",
serial=self._serial)
self.log.info("ColoramaDisplay connected: {details}", details=details)
# get custom configuration
cfg = self.config.extra
self._leds = Adafruit_NeoPixel(cfg['led_count'], cfg['led_pin'],
cfg['led_freq_hz'], cfg['led_dma'],
cfg['led_invert'],
cfg['led_brightness'])
self._leds.begin()
for proc in [
(self.set_color, 'set_color'),
(self.get_color, 'get_color'),
(self.flash, 'flash'),
(self.lightshow, 'lightshow'),
(self.color_wipe, 'color_wipe'),
(self.theater_chase, 'theater_chase'),
(self.rainbow, 'rainbow'),
(self.rainbow_cycle, 'rainbow_cycle'),
(self.theater_chaserainbow, 'theater_chaserainbow'),
]:
yield self.register(proc[0],
u'{}.{}'.format(self._prefix, proc[1]))
yield self.color_wipe(255, 255, 255)
self.log.info("ColoramaDisplay ready!")
# flash + set pixels to white to indicate component running
yield self.flash(delay=20, repeat=5)
yield self.set_color(40, 40, 40)
def __init__(self, axis, GPIO_Pin, LED_COUNT=38, LED_FREQ_HZ=800000, LED_DMA=10, LED_BRIGHTNESS=255,
LED_INVERT=False, LED_CHANNEL=0):
print("Initializing LED Strip on GPIO Pin " + str(GPIO_Pin))
from neopixel import Adafruit_NeoPixel
self.LED_COUNT = LED_COUNT
self.LED_PIN = GPIO_Pin
self.LED_FREQ_HZ = LED_FREQ_HZ
self.LED_DMA = LED_DMA
self.LED_BRIGHTNESS = LED_BRIGHTNESS
self.LED_INVERT = LED_INVERT
self.LED_CHANNEL = LED_CHANNEL
self.green = 0
self.red = 0
self.blue = 0
self.neopixel_Object = Adafruit_NeoPixel(self.LED_COUNT, self.LED_PIN, self.LED_FREQ_HZ, self.LED_DMA,
self.LED_INVERT, self.LED_BRIGHTNESS,
self.LED_CHANNEL)
self.neopixel_Object.begin()
updateColorsThread = Thread(target=self.updateColors)
updateColorsThread.start()
print("Started updateColors Thread")
class LEDStrip(object):
def __init__(self, array: TileArray):
from neopixel import Adafruit_NeoPixel
# Create NeoPixel object with appropriate configuration.
self.strip = Adafruit_NeoPixel(array.size(), LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS,
LED_CHANNEL)
# Intialize the library (must be called once before other functions).
self.strip.begin()
self.array = array
def draw(self, image: np.ndarray, delay: float = 0.001):
"""
Draws a matrix of color values to the dancefloor tiles. Handles the math of calculating what pixels
correspond to which LEDs in the chain of LED strips. The input image should have a shape of
(height, width, 3) where height is the LEDs in the vertical direction and width is the total LEDs in
the horizontal direction.
:param image: Matrix of colors to display on the dancefloor
:param delay: Seconds to wait after finishing writing to the LED strips
"""
from neopixel import Color
start = time.time()
for y in range(image.shape[0]):
for x in range(image.shape[1]):
idx = self.array.index(x, y)
r = int(image[y][x][0])
g = int(image[y][x][1])
b = int(image[y][x][2])
color = Color(g, r, b)
self.strip.setPixelColor(idx, color)
self.strip.show()
end = time.time()
delta = end - start
if delay > delta:
time.sleep(delay - delta)
class StripController:
def __init__(self):
self.ledCount_ = 100
self.height_ = 10
self.neopixel_ = Adafruit_NeoPixel(
self.ledCount_, # LED count
18, # LED pin
800000, # LED signal frequency (Hz)
10, # DMA channel
False, # Invert signal
100, # Brightness (0, 255)
0) # LED channel
self.neopixel_.begin()
def set(self, index, color):
if index >= self.ledCount_:
raise Exception('setting out of bounds pixel', index)
self.neopixel_.setPixelColor(index, color)
def show(self):
self.neopixel_.show()
def cleanUpGrid(self):
width = self.ledCount_ / self.height_
return [[BLACK] * width] * self.height_
class NeoPixels(object):
LED_COUNT = 256 # Number of LED pixels.
LED_PIN = 21 # GPIO pin connected to the pixels (must support PWM!). 18=PWM, 21=PCM, 10=SPI-MOSI
LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
LED_DMA = 5 # DMA channel to use for generating signal (try 5)
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
def __init__(self):
from neopixel import Adafruit_NeoPixel as NeoPixel
self._pixels = NeoPixel(num=self.LED_COUNT,
pin=self.LED_PIN,
freq_hz=self.LED_FREQ_HZ,
dma=self.LED_DMA,
invert=self.LED_INVERT,
brightness=self.LED_BRIGHTNESS)
try:
self._pixels.begin()
_logger.info("Initialized NeoPixel OK")
except RuntimeError:
_logger.error("Failed to initialize NeoPixels")
raise
self.write_pixels(np.zeros((16, 16, 3)))
def write_pixels(self, data):
for y, row in enumerate((data * 255).astype(np.uint8)):
for x, color in enumerate(row):
self._pixels.setPixelColorRGB(y * 16 + x, *color)
self._pixels.show()
class LEDStripPWM(LEDStrip):
def __init__(self, array: TileArray):
super().__init__(array)
from neopixel import Adafruit_NeoPixel
# Create NeoPixel object with appropriate configuration.
self.strip = Adafruit_NeoPixel(array.size(), LED_PIN, LED_FREQ_HZ,
LED_DMA, LED_INVERT, LED_BRIGHTNESS,
LED_CHANNEL)
# Intialize the library (must be called once before other functions).
self.strip.begin()
def draw(self, image: np.ndarray, delay: float = 0.001):
from neopixel import Color
start = time.time()
for y in range(image.shape[0]):
for x in range(image.shape[1]):
idx = self.array.index(x, y)
r = int(image[y][x][0])
g = int(image[y][x][1])
b = int(image[y][x][2])
color = Color(g, r, b)
self.strip.setPixelColor(idx, color)
self.strip.show()
end = time.time()
delta = end - start
if delay > delta:
time.sleep(delay - delta)
def __init__(self,
num,
gamma=gamma.NEOPIXEL,
c_order="RGB",
gpio=18,
ledFreqHz=800000,
ledDma=5,
ledInvert=False,
color_channels=3,
brightness=255,
**kwds):
if not NeoColor:
raise ValueError(WS_ERROR)
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
if gpio not in PIN_CHANNEL.keys():
raise ValueError('{} is not a valid gpio option!')
try:
strip_type = STRIP_TYPES[color_channels]
except:
raise ValueError(
'In PiWS281X, color_channels must be either 3 or 4')
self._strip = Adafruit_NeoPixel(num, gpio, ledFreqHz, ledDma,
ledInvert, brightness,
PIN_CHANNEL[gpio], strip_type)
# Intialize the library (must be called once before other functions).
try:
self._strip.begin()
except RuntimeError as e:
if os.geteuid():
if os.path.basename(sys.argv[0]) in ('bp', 'bibliopixel'):
command = ['bp'] + sys.argv[1:]
else:
command = ['python'] + sys.argv
error = SUDO_ERROR.format(command=' '.join(command))
e.args = (error, ) + e.args
raise
def __init__(self, num, gamma=gamma.NEOPIXEL, c_order=ChannelOrder.RGB, gpio=18,
ledFreqHz=800000, ledDma=5, ledInvert=False, **kwds):
"""
num - Number of LED pixels.
gpio - GPIO pin connected to the pixels (must support PWM! GPIO 13 or 18 (pins 33 or 12) on RPi 3).
ledFreqHz - LED signal frequency in hertz (800khz or 400khz)
ledDma - DMA channel to use for generating signal (Between 1 and 14)
ledInvert - True to invert the signal (when using NPN transistor level shift)
"""
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
self._strip = Adafruit_NeoPixel(num, gpio, ledFreqHz,
ledDma, ledInvert, 255, 0, 0x081000)
# Intialize the library (must be called once before other functions).
self._strip.begin()
def __init__(self):
self.LED_COUNT = 256 # Number of LED pixels.
self.LED_PIN = 18 # GPIO pin connected to the pixels (must support PWM!).
self.LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
self.LED_DMA = 5 # DMA channel to use for generating signal (try 5)
self.LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
self.LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
self.ROW_WIDTH = 8 # Number of LEDs in each row of the array
# Create NeoPixel object with appropriate configuration.
self.led_array = Adafruit_NeoPixel(
self.LED_COUNT, self.LED_PIN, self.LED_FREQ_HZ, self.LED_DMA, self.LED_INVERT, self.LED_BRIGHTNESS
)
# Intialize the library (must be called once before other functions).
self.led_array.begin()
def onJoin(self, details):
self._serial = get_serial()
self._prefix = u'io.crossbar.demo.iotstarterkit.{}.pixelstrip'.format(self._serial)
self.log.info("Crossbar.io IoT Starterkit Serial No.: {serial}", serial=self._serial)
self.log.info("ColoramaDisplay connected: {details}", details=details)
# get custom configuration
cfg = self.config.extra
self._leds = Adafruit_NeoPixel(
cfg['led_count'],
cfg['led_pin'],
cfg['led_freq_hz'],
cfg['led_dma'],
cfg['led_invert'],
cfg['led_brightness'])
self._leds.begin()
for proc in [
(self.set_color, 'set_color'),
(self.get_color, 'get_color'),
(self.flash, 'flash'),
(self.lightshow, 'lightshow'),
(self.color_wipe, 'color_wipe'),
(self.theater_chase, 'theater_chase'),
(self.rainbow, 'rainbow'),
(self.rainbow_cycle, 'rainbow_cycle'),
(self.theater_chaserainbow, 'theater_chaserainbow'),
]:
yield self.register(proc[0], u'{}.{}'.format(self._prefix, proc[1]))
self.flash()
self.log.info("ColoramaDisplay ready!")
class wordclock_display:
"""
Class to display any content on the wordclock display
Depends on the (individual) wordclock layout/wiring
"""
def __init__(self, config, wci):
"""
Initialization
"""
# Get the wordclocks wiring-layout
self.wcl = wiring.wiring(config)
self.wci = wci
try:
default_brightness = config.getint('wordclock_display', 'brightness')
except:
default_brightness = 255
print(
'WARNING: Default brightness value not set in config-file: '
'To do so, add a "brightness" between 1..255 to the [wordclock_display]-section.')
if config.getboolean('wordclock', 'developer_mode'):
from GTKstrip import GTKstrip
self.strip = GTKstrip(wci)
self.default_font = os.path.join('/usr/share/fonts/TTF/',
config.get('wordclock_display', 'default_font') + '.ttf')
else:
try:
from neopixel import Adafruit_NeoPixel, ws
self.strip = Adafruit_NeoPixel(self.wcl.LED_COUNT, self.wcl.LED_PIN, self.wcl.LED_FREQ_HZ,
self.wcl.LED_DMA, self.wcl.LED_INVERT, default_brightness , 0,
ws.WS2811_STRIP_GRB)
except:
print('Update deprecated external dependency rpi_ws281x. '
'For details see also https://github.com/jgarff/rpi_ws281x/blob/master/python/README.md')
self.default_font = os.path.join('/usr/share/fonts/truetype/freefont/',
config.get('wordclock_display', 'default_font') + '.ttf')
# Initialize the NeoPixel object
self.strip.begin()
self.default_fg_color = wcc.WWHITE
self.default_bg_color = wcc.BLACK
self.base_path = config.get('wordclock', 'base_path')
# Choose language
try:
language = ''.join(config.get('wordclock_display', 'language'))
except:
# For backward compatibility
language = ''.join(config.get('plugin_time_default', 'language'))
print(' Setting language to ' + language + '.')
if language == 'dutch':
self.taw = time_dutch.time_dutch()
elif language == 'english':
self.taw = time_english.time_english()
elif language == 'german':
self.taw = time_german.time_german()
elif language == 'german2':
self.taw = time_german2.time_german2()
elif language == 'swabian':
self.taw = time_swabian.time_swabian()
elif language == 'swabian2':
self.taw = time_swabian2.time_swabian2()
elif language == 'bavarian':
self.taw = time_bavarian.time_bavarian()
elif language == 'swiss_german':
self.taw = time_swiss_german.time_swiss_german()
elif language == 'swiss_german2':
self.taw = time_swiss_german2.time_swiss_german2()
else:
print('Could not detect language: ' + language + '.')
print('Choosing default: german')
self.taw = time_german.time_german()
def setPixelColor(self, pixel, color):
"""
Sets the color for a pixel, while considering the brightness, set within the config file
"""
self.strip.setPixelColor(pixel, color)
def getBrightness(self):
"""
Sets the color for a pixel, while considering the brightness, set within the config file
"""
return self.strip.getBrightness()
def setBrightness(self, brightness):
"""
Sets the color for a pixel, while considering the brightness, set within the config file
"""
self.strip.setBrightness(brightness)
self.show()
def setColorBy1DCoordinates(self, *args, **kwargs):
"""
Sets a pixel at given 1D coordinates
"""
return self.wcl.setColorBy1DCoordinates(*args, **kwargs)
def setColorBy2DCoordinates(self, *args, **kwargs):
"""
Sets a pixel at given 2D coordinates
"""
return self.wcl.setColorBy2DCoordinates(*args, **kwargs)
def get_wca_height(self):
"""
Returns the height of the WCA
"""
return self.wcl.WCA_HEIGHT
def get_wca_width(self):
"""
Returns the height of the WCA
"""
return self.wcl.WCA_WIDTH
def get_led_count(self):
"""
Returns the overall number of LEDs
"""
return self.wcl.LED_COUNT
def dispRes(self):
"""
Returns the resolution of the wordclock array as string
E.g. to choose the correct resolution of animations and icons
"""
return str(self.wcl.WCA_WIDTH) + 'x' + str(self.wcl.WCA_HEIGHT)
def setColorToAll(self, color, includeMinutes=True):
"""
Sets a given color to all leds
If includeMinutes is set to True, color will also be applied to the minute-leds.
"""
if includeMinutes:
for i in range(self.wcl.LED_COUNT):
self.setPixelColor(i, color)
else:
for i in self.wcl.getWcaIndices():
self.setPixelColor(i, color)
def setColorTemperatureToAll(self, temperature, includeMinutes=True):
"""
Sets a color to all leds based on the provided temperature in Kelvin
If includeMinutes is set to True, color will also be applied to the minute-leds.
"""
self.setColorToAll(wcc.color_temperature_to_rgb(temperature), includeMinutes)
def resetDisplay(self):
"""
Reset display
"""
self.setColorToAll(wcc.BLACK, True)
def showIcon(self, plugin, iconName):
"""
Dispays an icon with a specified name.
The icon needs to be provided within the graphics/icons folder.
"""
self.setImage(
self.base_path + '/wordclock_plugins/' + plugin + '/icons/' + self.dispRes() + '/' + iconName + '.png')
def setImage(self, absPathToImage):
"""
Set image (provided as absolute path) to current display
"""
img = Image.open(absPathToImage)
width, height = img.size
for x in range(0, width):
for y in range(0, height):
rgb_img = img.convert('RGB')
r, g, b = rgb_img.getpixel((x, y))
self.wcl.setColorBy2DCoordinates(self.strip, x, y, wcc.Color(r, g, b))
self.show()
def animate(self, plugin, animationName, fps=10, count=1, invert=False):
"""
Runs an animation
plugin: Plugin-name
num_of_frames: Number of frames to be displayed
count: Number of runs
fps: frames per second
invert: Invert order of animation
"""
animation_dir = self.base_path + '/wordclock_plugins/' + plugin + '/animations/' + self.dispRes() + '/' + animationName + '/'
num_of_frames = len([file_count for file_count in os.listdir(animation_dir)])
if invert:
animation_range = range(num_of_frames - 1, -1, -1)
else:
animation_range = range(0, num_of_frames)
for _ in range(count):
for i in animation_range:
self.setImage(animation_dir + str(i).zfill(3) + '.png')
if self.wci.waitForExit(1.0 / fps):
return
def showText(self, text, font=None, fg_color=None, bg_color=None, fps=10, count=1):
"""
Display text on display
"""
if font is None:
font = self.default_font
if fg_color is None:
fg_color = self.default_fg_color
if bg_color is None:
bg_color = self.default_bg_color
text = ' ' + text + ' '
fnt = fontdemo.Font(font, self.wcl.WCA_HEIGHT)
text_width, text_height, text_max_descent = fnt.text_dimensions(text)
text_as_pixel = fnt.render_text(text)
# Display text count times
for i in range(count):
# Erase previous content
self.setColorToAll(bg_color, includeMinutes=True)
# Assure here correct rendering, if the text does not fill the whole display
render_range = self.wcl.WCA_WIDTH if self.wcl.WCA_WIDTH < text_width else text_width
for y in range(text_height):
for x in range(render_range):
self.wcl.setColorBy2DCoordinates(self.strip, x, y,
fg_color if text_as_pixel.pixels[y * text_width + x] else bg_color)
# Show first frame for 0.5 seconds
self.show()
if self.wci.waitForExit(0.5):
return
# Shift text from left to right to show all.
for cur_offset in range(text_width - self.wcl.WCA_WIDTH + 1):
for y in range(text_height):
for x in range(self.wcl.WCA_WIDTH):
self.wcl.setColorBy2DCoordinates(self.strip, x, y, fg_color if text_as_pixel.pixels[
y * text_width + x + cur_offset] else bg_color)
self.show()
if self.wci.waitForExit(1.0 / fps):
return
def setMinutes(self, time, color):
if time.minute % 5 != 0:
for i in range(1, time.minute % 5 + 1):
self.setPixelColor(self.wcl.mapMinutes(i), color)
def show(self):
"""
This function provides the current color settings to the LEDs
"""
self.strip.show()
def __init__(self, config, wci):
"""
Initialization
"""
# Get the wordclocks wiring-layout
self.wcl = wiring.wiring(config)
self.wci = wci
try:
default_brightness = config.getint('wordclock_display', 'brightness')
except:
default_brightness = 255
print(
'WARNING: Default brightness value not set in config-file: '
'To do so, add a "brightness" between 1..255 to the [wordclock_display]-section.')
if config.getboolean('wordclock', 'developer_mode'):
from GTKstrip import GTKstrip
self.strip = GTKstrip(wci)
self.default_font = os.path.join('/usr/share/fonts/TTF/',
config.get('wordclock_display', 'default_font') + '.ttf')
else:
try:
from neopixel import Adafruit_NeoPixel, ws
self.strip = Adafruit_NeoPixel(self.wcl.LED_COUNT, self.wcl.LED_PIN, self.wcl.LED_FREQ_HZ,
self.wcl.LED_DMA, self.wcl.LED_INVERT, default_brightness , 0,
ws.WS2811_STRIP_GRB)
except:
print('Update deprecated external dependency rpi_ws281x. '
'For details see also https://github.com/jgarff/rpi_ws281x/blob/master/python/README.md')
self.default_font = os.path.join('/usr/share/fonts/truetype/freefont/',
config.get('wordclock_display', 'default_font') + '.ttf')
# Initialize the NeoPixel object
self.strip.begin()
self.default_fg_color = wcc.WWHITE
self.default_bg_color = wcc.BLACK
self.base_path = config.get('wordclock', 'base_path')
# Choose language
try:
language = ''.join(config.get('wordclock_display', 'language'))
except:
# For backward compatibility
language = ''.join(config.get('plugin_time_default', 'language'))
print(' Setting language to ' + language + '.')
if language == 'dutch':
self.taw = time_dutch.time_dutch()
elif language == 'english':
self.taw = time_english.time_english()
elif language == 'german':
self.taw = time_german.time_german()
elif language == 'german2':
self.taw = time_german2.time_german2()
elif language == 'swabian':
self.taw = time_swabian.time_swabian()
elif language == 'swabian2':
self.taw = time_swabian2.time_swabian2()
elif language == 'bavarian':
self.taw = time_bavarian.time_bavarian()
elif language == 'swiss_german':
self.taw = time_swiss_german.time_swiss_german()
elif language == 'swiss_german2':
self.taw = time_swiss_german2.time_swiss_german2()
else:
print('Could not detect language: ' + language + '.')
print('Choosing default: german')
self.taw = time_german.time_german()
class ColoramaDisplay(ApplicationSession):
@inlineCallbacks
def onJoin(self, details):
self._serial = get_serial()
self._prefix = u'io.crossbar.demo.iotstarterkit.{}.pixelstrip'.format(self._serial)
self.log.info("Crossbar.io IoT Starterkit Serial No.: {serial}", serial=self._serial)
self.log.info("ColoramaDisplay connected: {details}", details=details)
# get custom configuration
cfg = self.config.extra
self._leds = Adafruit_NeoPixel(
cfg['led_count'],
cfg['led_pin'],
cfg['led_freq_hz'],
cfg['led_dma'],
cfg['led_invert'],
cfg['led_brightness'])
self._leds.begin()
for proc in [
(self.set_color, 'set_color'),
(self.get_color, 'get_color'),
(self.flash, 'flash'),
(self.lightshow, 'lightshow'),
(self.color_wipe, 'color_wipe'),
(self.theater_chase, 'theater_chase'),
(self.rainbow, 'rainbow'),
(self.rainbow_cycle, 'rainbow_cycle'),
(self.theater_chaserainbow, 'theater_chaserainbow'),
]:
yield self.register(proc[0], u'{}.{}'.format(self._prefix, proc[1]))
self.flash()
self.log.info("ColoramaDisplay ready!")
@inlineCallbacks
def flash(self, delay=50, repeat=5):
delay = float(delay) / 1000.
for i in range(repeat):
self.set_color(0xe1, 0xda, 0x05)
yield sleep(2 * delay)
self.set_color(0x52, 0x42, 0x00)
yield sleep(delay)
@inlineCallbacks
def lightshow(self):
# Color wipe animations.
yield self.color_wipe(255, 0, 0) # Red wipe
yield self.color_wipe(0, 255, 0) # Blue wipe
yield self.color_wipe(0, 0, 255) # Green wipe
# Theater chase animations.
yield self.theater_chase(127, 127, 127) # White theater chase
yield self.theater_chase(127, 0, 0) # Red theater chase
yield self.theater_chase(0, 0, 127) # Blue theater chase
# Rainbow animations.
yield self.rainbow()
yield self.rainbow_cycle()
#yield self.theater_chase_rainbow()
yield self.flash()
# Define functions which animate LEDs in various ways.
@inlineCallbacks
def color_wipe(self, r, g, b, wait_ms=50):
"""Wipe color across display a pixel at a time."""
for i in range(self._leds.numPixels()):
self.set_color(r, g, b, i)
yield sleep(wait_ms / 1000.0)
@inlineCallbacks
def theater_chase(self, r, g, b, wait_ms=50, iterations=10):
"""Movie theater light style chaser animation."""
for j in range(iterations):
for q in range(3):
for i in range(0, self._leds.numPixels(), 3):
self.set_color(r, g, b, i + q)
yield sleep(wait_ms / 1000.0)
for i in range(0, self._leds.numPixels(), 3):
self.set_color(0, 0, 0, i + q)
def wheel(self, pos):
"""Generate rainbow colors across 0-255 positions."""
if pos < 85:
return (pos * 3, 255 - pos * 3, 0)
elif pos < 170:
pos -= 85
return (255 - pos * 3, 0, pos * 3)
else:
pos -= 170
return (0, pos * 3, 255 - pos * 3)
@inlineCallbacks
def rainbow(self, wait_ms=20, iterations=1):
"""Draw rainbow that fades across all pixels at once."""
for j in range(256 * iterations):
for i in range(self._leds.numPixels()):
r, g, b = self.wheel((i + j) & 255)
self.set_color(r, g, b, i)
yield sleep(wait_ms / 1000.0)
@inlineCallbacks
def rainbow_cycle(self, wait_ms=20, iterations=5):
"""Draw rainbow that uniformly distributes itself across all pixels."""
for j in range(256 * iterations):
for i in range(self._leds.numPixels()):
r, g, b = self.wheel(((i * 256 / self._leds.numPixels()) + j) & 255)
self.set_color(r, g, b, i)
yield sleep(wait_ms / 1000.0)
@inlineCallbacks
def theater_chaserainbow(self, wait_ms=50):
"""Rainbow movie theater light style chaser animation."""
for j in range(256):
for q in range(3):
for i in range(0, self._leds.numPixels(), 3):
r, g, b = self.wheel((i+j) % 255)
self.set_color(r, g, b, i + q)
yield sleep(wait_ms / 1000.0)
for i in range(0, self._leds.numPixels(), 3):
self.set_color(0, 0, 0, i)
def set_color(self, red, green, blue, k=None):
if k is None:
for i in range(self._leds.numPixels()):
# FIXME: not sure, but we need to swap this here. maybe it is the specific neopixels?
self._leds.setPixelColorRGB(i, green, red, blue)
color_change = {
u'led': i,
u'r': red,
u'g': green,
u'b': blue
}
self.publish(u'{}.on_color_set'.format(self._prefix), color_change)
else:
# FIXME: not sure, but we need to swap this here. maybe it is the specific neopixels?
self._leds.setPixelColorRGB(k, green, red, blue)
color_change = {
u'led': k,
u'r': red,
u'g': green,
u'b': blue
}
self.publish(u'{}.on_color_set'.format(self._prefix), color_change)
self._leds.show()
def get_color(self, k):
c = self._leds.getPixelColor(k)
color = {
u'g': c >> 16,
u'r': (c >> 8) & 0xff,
u'b': c & 0xff,
}
return color
def onLeave(self, details):
self.log.info("Session closed: {details}", details=details)
self.disconnect()
def onDisconnect(self):
self.log.info("Connection closed")
for i in range(self._leds.numPixels()):
self._leds.setPixelColorRGB(i, 0, 0, 0)
self._leds.show()
try:
reactor.stop()
except ReactorNotRunning:
pass
class RPiMaze(MazeGame):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Set up NeoPixel
self.np = Adafruit_NeoPixel(NUM_PIXELS, GPIO_PIN, brightness=INTENSITY)
self.np.begin()
self.led_grid = led_grid.LEDGrid(self.np, grid.SerpentinePattern.TOP_RIGHT,
width=MATRIX_WIDTH, height=MATRIX_HEIGHT)
@staticmethod
def hexcolor_to_rgb(colorstr):
# https://stackoverflow.com/a/29643643 TODO: abstract this out some more
color = tuple(int(colorstr.lstrip('#')[i:i+2], 16) for i in (0, 2, 4))
print("%s: %s" % (colorstr, str(color)))
return color
def draw_point_at(self, x, y, color):
try:
self.led_grid.set(x, y, color, allowOverwrite=True)
except IndexError:
pass
def _draw_walls(self, wall_points_to_draw):
for point in wall_points_to_draw:
#print("Drawing LED point %s, %s as a wall" % (point[0], point[1]))
self.draw_point_at(point[0], point[1], (255, 255, 255))
def draw_maze_leds(self):
"""
Draws the maze on an LED strip.
"""
for pixel in range(NUM_PIXELS):
self.np.setPixelColorRGB(pixel, 0, 0, 0)
for ypos, row in enumerate(self.maze.by_rows()):
for xpos, point in enumerate(row):
if point.is_finish:
color = self.hexcolor_to_rgb(self.FINISH_COLOR)
elif point.is_start:
color = self.hexcolor_to_rgb(self.START_COLOR)
else:
# Empty tile
color = (0, 0, 0)
for sprite in self.sprites:
if sprite.x == xpos and sprite.y == ypos:
color = self.hexcolor_to_rgb(sprite.color)
print("Setting color to %s for sprite %s at %s, %s" % (color, sprite, xpos, ypos))
if point.is_selected:
color = self.hexcolor_to_rgb(self.SELECTED_COLOR)
led_xpos = xpos * 2
led_ypos = ypos * 2
#print("Translating player position (%s, %s) into LED position (%s, %s)" % (xpos, ypos, led_xpos, led_ypos))
wall_points_to_draw = {
(led_xpos-1, led_ypos-1),
(led_xpos-1, led_ypos+1),
(led_xpos+1, led_ypos-1),
(led_xpos+1, led_ypos+1)
}
paths = point.paths
if 'north' not in paths:
wall_points_to_draw.add((led_xpos, led_ypos-1))
if 'south' not in paths:
wall_points_to_draw.add((led_xpos, led_ypos+1))
if 'east' not in paths:
wall_points_to_draw.add((led_xpos+1, led_ypos))
if 'west' not in paths:
wall_points_to_draw.add((led_xpos-1, led_ypos))
self._draw_walls(wall_points_to_draw)
self.draw_point_at(led_xpos, led_ypos, color)
self.np.show()
self.led_grid.show()
def draw_maze(self, *args, **kwargs):
super().draw_maze(*args, **kwargs)
self.draw_maze_leds()
return True
class PiWS281X(DriverBase):
"""
Driver for controlling WS281X LEDs via the rpi_ws281x C-extension.
Only supported on the Raspberry Pi 2, 3, and Zero
This driver needs to be run as sudo and requires the rpi_ws281x C extension.
Install rpi_ws281x with the following shell commands:
git clone https://github.com/jgarff/rpi_ws281x.git
cd rpi_ws281x
sudo apt-get install python-dev swig scons
sudo scons
cd python
# If using default system python3
sudo python3 setup.py build install
# If using virtualenv, enter env then run
python setup.py build install
Provides the same parameters of :py:class:`.driver_base.DriverBase` as
well as those below:
:param int gpio: GPIO pin to output to. Typically 18 or 13
:param int ledFreqHz: WS2812B base data frequency in Hz. Only change to
400000 if using very old WS218B LEDs
:param int ledDma: DMA channel to use for generating signal (Between 1 and 14)
:param bool ledInvert: True to invert the signal (when using NPN transistor level shift)
"""
# Including follow as comment as URLs in docstrings don't play well with sphinx
# Discussion re: running as sudo
# https://groups.google.com/d/msg/maniacal-labs-users/6hV-2_-Xmqc/wmWJK709AQAJ
# https://github.com/jgarff/rpi_ws281x/blob/master/python/neopixel.py#L106
def __init__(
self, num, gamma=gamma.NEOPIXEL, c_order="RGB", gpio=18,
ledFreqHz=800000, ledDma=5, ledInvert=False,
color_channels=3, brightness=255, **kwds):
if not NeoColor:
raise ValueError(WS_ERROR)
super().__init__(num, c_order=c_order, gamma=gamma, **kwds)
self.gamma = gamma
if gpio not in PIN_CHANNEL.keys():
raise ValueError('{} is not a valid gpio option!')
try:
strip_type = STRIP_TYPES[color_channels]
except:
raise ValueError('In PiWS281X, color_channels must be either 3 or 4')
self._strip = Adafruit_NeoPixel(
num, gpio, ledFreqHz, ledDma, ledInvert, brightness,
PIN_CHANNEL[gpio], strip_type)
# Intialize the library (must be called once before other functions).
try:
self._strip.begin()
except RuntimeError as e:
if os.geteuid():
if os.path.basename(sys.argv[0]) in ('bp', 'bibliopixel'):
command = ['bp'] + sys.argv[1:]
else:
command = ['python'] + sys.argv
error = SUDO_ERROR.format(command=' '.join(command))
e.args = (error,) + e.args
raise
def set_brightness(self, brightness):
self._strip.setBrightness(brightness)
return True
def _compute_packet(self):
self._render()
data = self._buf
self._packet = [tuple(data[(p * 3):(p * 3) + 3]) for p in range(len(data) // 3)]
def _send_packet(self):
for i, p in enumerate(self._packet):
self._strip.setPixelColor(i, NeoColor(*p))
self._strip.show()
start = 0 + row_number*ROW_WIDTH
end = start + ROW_WIDTH
for i in range(start, end):
strip.setPixelColor(i, color)
strip.show()
def fill_up_to(strip, row, color):
for i in range(row + 1):
setRowColor(strip,i,color)
def empty_array(strip):
for i in range(256):
strip.setPixelColorRGB(i,0,0,0)
strip.show()
# Main program logic follows:
if __name__ == '__main__':
# Create NeoPixel object with appropriate configuration.
led_array = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS)
# Intialize the library (must be called once before other functions).
led_array.begin()
while True:
color = Color(0, 0, 60)
# setRowColor(led_array,1,color)
# fill_up_to(led_array,0,color)
# sleep(0.1)
fill_up_to(led_array,7,color)
sleep(5)
empty_array(led_array)
sleep(3)