def __init__(self,
driver_type,
led_layout=None,
brightness=DEFAULT_BRIGHTNESS):
try:
if driver_type == "PiWS281x":
driver = PiWS281X(self.NUM_PIXELS)
elif driver_type == "WS2801":
driver = WS2801(self.NUM_PIXELS,
dev='/dev/spidev0.1',
spi_interface=SPI_INTERFACES.PERIPHERY,
spi_speed=1)
elif driver_type == "SimPixel":
driver = SimPixel(self.NUM_PIXELS)
driver.open_browser()
else:
raise ValueError(
"driver_type {driver_type} unknow.".format(driver_type))
except (ImportError, ValueError) as e:
print("Not able to initialize the driver. Error{}".format(e))
print("Use bibliopixel.drivers.dummy_driver")
driver = DriverDummy(self.NUM_PIXELS)
if led_layout is not None:
self.layout = Strip(driver,
brightness=brightness,
threadedUpdate=True)
else:
self.layout = Strip(driver,
brightness=brightness,
threadedUpdate=True)
self.layout.cleanup_drivers()
self.layout.start()
self.animation = None
def __init__(self,
driver_type,
led_mapping=DEFAULT_LED_MAPPING_FILE,
brightness=DEFAULT_BRIGHTNESS):
#read led mapping
led_mappimng_abs = os.path.join(os.path.dirname(__file__), led_mapping)
with open(led_mappimng_abs) as json_file:
try:
data = json.load(json_file)
except Exception as e:
print("Json led mapping not a valid JSON.")
raise e
else:
self.MAPPING = data
try:
num_pixels=self.MAPPING["num_pixels"]
except:
num_pixels=max(self.MAPPING.values())+1
try:
if driver_type == "PiWS281x":
driver = PiWS281X(num_pixels)
elif driver_type == "WS2801":
driver = WS2801(num_pixels, dev='/dev/spidev0.1',spi_interface= SPI_INTERFACES.PERIPHERY,spi_speed=1)
elif driver_type == "SimPixel":
driver = SimPixel(num_pixels)
driver.open_browser()
else:
raise ValueError("driver_type {driver_type} unknow.".format(driver_type) )
except (ImportError, ValueError) as e:
print("Not able to initialize the driver. Error{}".format(e))
print("Use bibliopixel.drivers.dummy_driver")
driver = DriverDummy(num_pixels)
self.layout = Strip (driver, brightness=brightness,threadedUpdate=True)
self.layout.cleanup_drivers()
self.layout.start()
self.animation = None