def WipeColorLED(channel, color):
"""Wipe color across display a pixel at a time."""
for i in range(LED_COUNT):
# Set the LED color buffer value.
ws.ws2811_led_set(channel, i, color)
# Send the LED color data to the hardware.
ws.ws2811_render(leds)
def fuse(self, style):
"""
Perform a fuse burn, then explode!
"""
explode = False
cycle_counter = 1
colors = GRB_Parser().convert(style['fuse_fire'])
explode_colors = style['explosion'] or ['red', 'orange']
speed = style['speed']
offset = style['offset']
iterations = style['iterations']
direction = style['direction']
trail_colors = GRB_Parser().convert(
style['fuse_unlit'] * (self.LED_COUNT - len(colors)))
afuse = colors + trail_colors
while iterations > 0:
if cycle_counter % self.LED_COUNT != 0:
cycle_counter += 1
# Set the LED color buffer value.
for i in range(self.LED_COUNT):
color = afuse[
(i + offset) % len(afuse)
]
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
time.sleep(speed)
afuse = deque(afuse)
afuse.rotate(direction)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
else:
explode = True
cycle_counter += 1
if explode:
print('Exploding!')
explode = False
self.LED_BRIGHTNESS = style['explosion_brightness'],
explosion = {
'style_name': style['style_name'],
'method_name': style['method_name'],
'css3_colors': explode_colors,
'speed': style['explosion_speed'],
'offset': 1,
'reverse_after': 500,
'iterations': 1,
'direction': 1,
'cleanup': 1,
}
self.LED_BRIGHTNESS = style['explosion_brightness']
self.party(explosion, True)
cycle_counter += 1
iterations -= 1
def raw_render(self):
resp = ws.ws2811_render(self.leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
'ws2811_render failed with code {0} ({1})'.format(
resp, message))
def show(self, output_array):
import _rpi_ws281x as ws # pylint: disable=import-error
# Typecast the array to int
output_array = output_array.clip(0, 255).astype(int)
# sort the colors. grb
g = np.left_shift(output_array[1][:].astype(int), 16) # pylint: disable=assignment-from-no-return
r = np.left_shift(output_array[0][:].astype(int), 8) # pylint: disable=assignment-from-no-return
b = output_array[2][:].astype(int)
rgb = np.bitwise_or(np.bitwise_or(r, g), b).astype(int)
# You can only use ws2811_leds_set with the custom version.
#ws.ws2811_leds_set(self.channel, rgb)
for i in range(self._led_count):
ws.ws2811_led_set(self.channel, i, rgb[i].item())
resp = ws.ws2811_render(self._leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(resp, message))
def comet(self, style):
print('COMET')
cycle_counter = 0
colors = GRB_Parser().convert(style['comet_head'])
speed = style['speed'] or random()
offset = style['offset'] or 1
iterations = style['iterations'] or 1
direction = style['direction'] or 1
trail_colors = GRB_Parser().convert(style['comet_tail'] *
(self.LED_COUNT - len(colors)))
comet = colors + trail_colors
while iterations > 0:
for i in range(self.LED_COUNT):
color = comet[(i + offset) % len(comet)]
# Set the LED color buffer value.
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
# shift things
comet = deque(comet)
comet.rotate(direction)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(speed)
cycle_counter += 1
if cycle_counter % self.LED_COUNT == 0:
iterations -= 1
def comet(self, style):
print('COMET')
cycle_counter = 0
colors = GRB_Parser().convert(style['comet_head'])
speed = style['speed'] or random()
offset = style['offset'] or 1
iterations = style['iterations'] or 1
direction = style['direction'] or 1
trail_colors = GRB_Parser().convert(
style['comet_tail'] * (self.LED_COUNT - len(colors)))
comet = colors + trail_colors
while iterations > 0:
for i in range(self.LED_COUNT):
color = comet[
(i + offset) % len(comet)
]
# Set the LED color buffer value.
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
# shift things
comet = deque(comet)
comet.rotate(direction)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(speed)
cycle_counter += 1
if cycle_counter % self.LED_COUNT == 0:
iterations -= 1
def render():
global LEDS
resp = ws.ws2811_render(LEDS)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(
resp, message))
def show(self, t=0.0):
"""Update the display with the data from the LED buffer."""
with _ws821x_lock:
resp = ws.ws2811_render(self._leds)
if resp != 0:
str_resp = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(resp, str_resp))
time.sleep(t)
def show(self):
"""Update the display with the data from the LED buffer."""
resp = ws.ws2811_render(self._leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
'ws2811_render failed with code {0} ({1})'.format(
resp, message))
def fuse(self, style):
"""
Perform a fuse burn, then explode!
"""
explode = False
cycle_counter = 1
colors = GRB_Parser().convert(style['fuse_fire'])
explode_colors = style['explosion'] or ['red', 'orange']
speed = style['speed']
offset = style['offset']
iterations = style['iterations']
direction = style['direction']
trail_colors = GRB_Parser().convert(style['fuse_unlit'] *
(self.LED_COUNT - len(colors)))
afuse = colors + trail_colors
while iterations > 0:
if cycle_counter % self.LED_COUNT != 0:
cycle_counter += 1
# Set the LED color buffer value.
for i in range(self.LED_COUNT):
color = afuse[(i + offset) % len(afuse)]
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
time.sleep(speed)
afuse = deque(afuse)
afuse.rotate(direction)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
else:
explode = True
cycle_counter += 1
if explode:
print('Exploding!')
explode = False
self.LED_BRIGHTNESS = style['explosion_brightness'],
explosion = {
'style_name': style['style_name'],
'method_name': style['method_name'],
'css3_colors': explode_colors,
'speed': style['explosion_speed'],
'offset': 1,
'reverse_after': 500,
'iterations': 1,
'direction': 1,
'cleanup': 1,
}
self.LED_BRIGHTNESS = style['explosion_brightness']
self.party(explosion, True)
cycle_counter += 1
iterations -= 1
def colorChange(color):
print(color)
# LED configuration.
LED_CHANNEL = 0
LED_COUNT = 16 # How many LEDs to light.
LED_FREQ_HZ = 800000 # Frequency of the LED signal. Should be 800khz or 400khz.
LED_DMA_NUM = 5 # DMA channel to use, can be 0-14.
LED_GPIO = 18 # GPIO connected to the LED signal line. Must support PWM!
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = 0 # Set to 1 to invert the LED signal, good if using NPN
# transistor as a 3.3V->5V level converter. Keep at 0
# for a normal/non-inverted signal.
leds = ws.new_ws2811_t()
# Initialize all channels to off
for channum in range(2):
channel = ws.ws2811_channel_get(leds, channum)
ws.ws2811_channel_t_count_set(channel, 0)
ws.ws2811_channel_t_gpionum_set(channel, 0)
ws.ws2811_channel_t_invert_set(channel, 0)
ws.ws2811_channel_t_brightness_set(channel, 0)
channel = ws.ws2811_channel_get(leds, LED_CHANNEL)
ws.ws2811_channel_t_count_set(channel, LED_COUNT)
ws.ws2811_channel_t_gpionum_set(channel, LED_GPIO)
ws.ws2811_channel_t_invert_set(channel, LED_INVERT)
ws.ws2811_channel_t_brightness_set(channel, LED_BRIGHTNESS)
ws.ws2811_t_freq_set(leds, LED_FREQ_HZ)
ws.ws2811_t_dmanum_set(leds, LED_DMA_NUM)
# Initialize library with LED configuration.
resp = ws.ws2811_init(leds)
if resp != 0:
raise RuntimeError('ws2811_init failed with code {0}'.format(resp))
try:
DOT_COLOR = int(color[1:7],16)
# Update each LED color in the buffer.
for i in range(LED_COUNT):
# Pick a color based on LED position and an offset for animation.
# Set the LED color buffer value.
ws.ws2811_led_set(channel, i, DOT_COLOR)
time.sleep(.15)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(leds)
if resp != 0:
raise RuntimeError('ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(.25)
finally:
# Ensure ws2811_fini is called before the program quits.
ws.ws2811_fini(leds)
# Example of calling delete function to clean up structure memory. Isn't
# strictly necessary at the end of the program execution here, but is good practice.
ws.delete_ws2811_t(leds)
def neopixel_write(gpio, buf):
global _led_strip # we'll have one strip we init if its not at first
if _led_strip is None:
# Create a ws2811_t structure from the LED configuration.
# Note that this structure will be created on the heap so you
# need to be careful that you delete its memory by calling
# delete_ws2811_t when it's not needed.
_led_strip = ws.new_ws2811_t()
# Initialize all channels to off
for channum in range(2):
channel = ws.ws2811_channel_get(_led_strip, channum)
ws.ws2811_channel_t_count_set(channel, 0)
ws.ws2811_channel_t_gpionum_set(channel, 0)
ws.ws2811_channel_t_invert_set(channel, 0)
ws.ws2811_channel_t_brightness_set(channel, 0)
channel = ws.ws2811_channel_get(_led_strip, LED_CHANNEL)
# Initialize the channel in use
ws.ws2811_channel_t_count_set(channel, math.ceil(len(buf)/3)) # we manage 4 vs 3 bytes in the library
ws.ws2811_channel_t_gpionum_set(channel, gpio._pin.id)
ws.ws2811_channel_t_invert_set(channel, LED_INVERT)
ws.ws2811_channel_t_brightness_set(channel, LED_BRIGHTNESS)
ws.ws2811_channel_t_strip_type_set(channel, LED_STRIP)
# Initialize the controller
ws.ws2811_t_freq_set(_led_strip, LED_FREQ_HZ)
ws.ws2811_t_dmanum_set(_led_strip, LED_DMA_NUM)
resp = ws.ws2811_init(_led_strip)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_init failed with code {0} ({1})'.format(resp, message))
atexit.register(neopixel_cleanup)
channel = ws.ws2811_channel_get(_led_strip, LED_CHANNEL)
if gpio._pin.id != ws.ws2811_channel_t_gpionum_get(channel):
raise RuntimeError("Raspberry Pi neopixel support is for one strip only!")
# assign all colors!
for i in range(len(buf) // 3):
r = buf[3*i]
g = buf[3*i+1]
b = buf[3*i+2]
pixel = (r << 16) | (g << 8) | b
ws.ws2811_led_set(channel, i, pixel)
resp = ws.ws2811_render(_led_strip)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(resp, message))
time.sleep(0.001 * ((len(buf)//100)+1)) # about 1ms per 100 bytes
def room_lighting_on(self, style):
colors = GRB_Parser().convert(style['color'])
# self.LED_BRIGHTNESS = style['brightness']
print('brightness: ', self.LED_BRIGHTNESS)
print('senselight: ', style['senselight'])
print('color: ', style['color'])
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, colors[0])
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
def room_lighting(self, style):
colors = GRB_Parser().convert(style['color'])
# self.LED_BRIGHTNESS = style['brightness']
print('brightness: ', self.LED_BRIGHTNESS)
print('senselight: ', style['senselight'])
print('color: ', style['color'])
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, colors[0])
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
def fade(self, style):
length = style['led_count']
speed = style['speed']
iterations = style['iterations'] or 1
fade_out_brightness, fade_in_brightness = style['fade_dim'], style[
'fade_bright']
in_color, out_color = GRB_Parser().convert(
style['fade_in']), GRB_Parser().convert(style['fade_out'])
chain = []
div = int((out_color[0] - in_color[0]) / length)
if div < 0:
div *= -1
cnt = 0
for n in range(length):
cnt += 1
chain.append(div * cnt)
if n % length == 0:
if n < 0:
n = n * -1
brightness_direction = 1
brightness = 0
returns = 0
while iterations > 0:
brightness += brightness_direction
if (brightness >= fade_in_brightness - 1 and brightness_direction
== 1) or (brightness <= fade_out_brightness + 1
and brightness_direction == -1):
brightness_direction *= -1
returns += 1
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, chain[i])
ws.ws2811_channel_t_brightness_set(self.channel, brightness)
# print(brightness)
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
time.sleep(speed)
if returns == 1:
iterations -= 1
returns = 0
def fade(self, style):
length = style['led_count']
speed = style['speed']
iterations = style['iterations'] or 1
fade_out_brightness, fade_in_brightness = style[
'fade_dim'], style['fade_bright']
in_color, out_color = GRB_Parser().convert(
style['fade_in']), GRB_Parser().convert(style['fade_out'])
chain = []
div = int((out_color[0] - in_color[0]) / length)
if div < 0:
div *= -1
cnt = 0
for n in range(length):
cnt += 1
chain.append(div * cnt)
if n % length == 0:
if n < 0:
n = n * -1
brightness_direction = 1
brightness = 0
returns = 0
while iterations > 0:
brightness += brightness_direction
if (brightness >= fade_in_brightness - 1 and brightness_direction == 1) or (
brightness <= fade_out_brightness + 1 and brightness_direction == -1):
brightness_direction *= -1
returns += 1
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, chain[i])
ws.ws2811_channel_t_brightness_set(self.channel, brightness)
# print(brightness)
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
time.sleep(speed)
if returns == 1:
iterations -= 1
returns = 0
def typewriter(self, style):
head = GRB_Parser().convert(style['head'] or ['red'])
empty = GRB_Parser().convert(style['empty'] or ['black'])
base = GRB_Parser().convert(style['base'] or ['blue'])
length = style['led_count'] or 630
speed = style['speed'] or 0.05
iterations = style['iterations'] or 1
chain = head + (empty * (length - len(head)))
head_pos = len(head)
base_color = 0
direction = style['direction'] or 1
offset = style['offset'] or 1
cycle_counter = 1
while iterations > 0:
for i in range(self.LED_COUNT):
color = chain[
(i + offset) % len(list(chain))
]
ws.ws2811_led_set(self.channel, i, color)
base_trail = [base[base_color]] * \
(length - len(list(chain)[0:head_pos]))
chain = empty * \
(length - (len(head) + len(base_trail) - 2)) + \
head + base_trail
time.sleep(speed)
# print(list(chain))
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# print(' Head: ', head_pos, ' ', chain, end="\r", flush=True)
chain = deque(chain)
chain.rotate(direction)
if head_pos == length - 1:
head_pos = 0
head.reverse()
direction *= -1
if base_color == len(base) - 1:
base_color = 0
else:
base_color += 1
else:
head_pos += 1
if cycle_counter % length == 0:
iterations -= 1
def party(self, style, internal=False):
temp_led_count = 480
if internal:
temp_led_count = int(self.LED_COUNT / 15)
cycle_counter = 0
colors = GRB_Parser().convert(style['css3_colors'])
speed = style['speed'] or random()
offset = style['offset'] or 1
reverse_after = style['reverse_after'] or 0
iterations = style['iterations'] or 1
direction = style['direction'] or 1
while iterations > 0:
# Update each LED color in the buffer.
for i in range(self.LED_COUNT):
# Pick a color based on LED position and an offset for
# animation.
color = colors[
(i + offset) % len(colors)]
# Set the LED color buffer value.
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(speed)
# Increase offset to animate colors moving. Will eventually overflow, which
# is fine.
if offset > reverse_after or offset < (reverse_after * -1):
direction *= -1
offset += direction
# used to determine end of a task
cycle_counter += 1
if not internal:
if cycle_counter % self.LED_COUNT == 0:
iterations -= 1
else:
if cycle_counter % temp_led_count == 0:
iterations -= 1
def set(channel, leds, colorArray):
position = 0
if not isinstance(colorArray[0], list):
colorArray = [colorArray]
for row in colorArray:
for element in row:
ws.ws2811_led_set(channel, position,
ctypes.c_uint32(element).value)
position += 1
resp = ws.ws2811_render(leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed : {0} ({1})'.format(
resp, message))
def party(self, style, internal=False):
temp_led_count = 480
if internal:
temp_led_count = int(self.LED_COUNT / 15)
cycle_counter = 0
colors = GRB_Parser().convert(style['css3_colors'])
speed = style['speed'] or random()
offset = style['offset'] or 1
reverse_after = style['reverse_after'] or 0
iterations = style['iterations'] or 1
direction = style['direction'] or 1
while iterations > 0:
# Update each LED color in the buffer.
for i in range(self.LED_COUNT):
# Pick a color based on LED position and an offset for
# animation.
color = colors[(i + offset) % len(colors)]
# Set the LED color buffer value.
ws.ws2811_led_set(self.channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(speed)
# Increase offset to animate colors moving. Will eventually overflow, which
# is fine.
if offset > reverse_after or offset < (reverse_after * -1):
direction *= -1
offset += direction
# used to determine end of a task
cycle_counter += 1
if not internal:
if cycle_counter % self.LED_COUNT == 0:
iterations -= 1
else:
if cycle_counter % temp_led_count == 0:
iterations -= 1
def show(self):
"""
Update the display with the data from the LED buffer.
Parameters
----------
self : Function of class Adafruit_Neopixel
Returns
-------
None
"""
resp = ws.ws2811_render(self._leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
'ws2811_render failed with code {0} ({1})'.format(
resp, message))
def typewriter(self, style):
head = GRB_Parser().convert(style['head'] or ['red'])
empty = GRB_Parser().convert(style['empty'] or ['black'])
base = GRB_Parser().convert(style['base'] or ['blue'])
length = style['led_count'] or 630
speed = style['speed'] or 0.05
iterations = style['iterations'] or 1
chain = head + (empty * (length - len(head)))
head_pos = len(head)
base_color = 0
direction = style['direction'] or 1
offset = style['offset'] or 1
cycle_counter = 1
while iterations > 0:
for i in range(self.LED_COUNT):
color = chain[(i + offset) % len(list(chain))]
ws.ws2811_led_set(self.channel, i, color)
base_trail = [base[base_color]] * \
(length - len(list(chain)[0:head_pos]))
chain = empty * \
(length - (len(head) + len(base_trail) - 2)) + \
head + base_trail
time.sleep(speed)
# print(list(chain))
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# print(' Head: ', head_pos, ' ', chain, end="\r", flush=True)
chain = deque(chain)
chain.rotate(direction)
if head_pos == length - 1:
head_pos = 0
head.reverse()
direction *= -1
if base_color == len(base) - 1:
base_color = 0
else:
base_color += 1
else:
head_pos += 1
if cycle_counter % length == 0:
iterations -= 1
def gradient(self, style):
cycle_counter = 1
iterations = style['iterations']
length = style['led_count']
speed = style['speed']
direction = style['direction']
crange = style['color_range']
crange = GRB_Parser().convert(crange)
div = (crange[1] - crange[0]) / self.LED_COUNT
offset = 0
cnt = 0
chain = []
for n in range(length):
cnt += 1
chain.append(int(div * cnt))
if n % length == 0:
if n < 0:
n = n * -1
while iterations > 0:
cycle_counter += 1
chain = deque(chain)
for i in range(self.LED_COUNT):
color = chain[
(i + offset) % len(list(chain))
]
ws.ws2811_led_set(self.channel, i, color)
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
chain.rotate(direction)
# print(list(chain), end="\r", flush=True)
time.sleep(speed)
if cycle_counter % length == 0:
iterations -= 1
def gradient(self, style):
cycle_counter = 1
iterations = style['iterations']
length = style['led_count']
speed = style['speed']
direction = style['direction']
crange = style['color_range']
crange = GRB_Parser().convert(crange)
div = (crange[1] - crange[0]) / self.LED_COUNT
offset = 0
cnt = 0
chain = []
for n in range(length):
cnt += 1
chain.append(int(div * cnt))
if n % length == 0:
if n < 0:
n = n * -1
while iterations > 0:
cycle_counter += 1
chain = deque(chain)
for i in range(self.LED_COUNT):
color = chain[(i + offset) % len(list(chain))]
ws.ws2811_led_set(self.channel, i, color)
resp = ws.ws2811_render(self.leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
chain.rotate(direction)
# print(list(chain), end="\r", flush=True)
time.sleep(speed)
if cycle_counter % length == 0:
iterations -= 1
def show(self, output_array):
import _rpi_ws281x as ws # pylint: disable=import-error
# Typecast the array to int.
output_array = output_array.clip(0, 255).astype(int)
# Check if we have a white channel or not.
if len(output_array[:]) == 4 and "SK6812" in self._led_strip:
# Sort the colors as RGB type.
g = np.left_shift(output_array[1][:].astype(int), 24) # pylint: disable=assignment-from-no-return
r = np.left_shift(output_array[0][:].astype(int), 16) # pylint: disable=assignment-from-no-return
b = np.left_shift(output_array[2][:].astype(int), 8) # pylint: disable=assignment-from-no-return
w = output_array[3][:].astype(int)
grbw = np.bitwise_or(np.bitwise_or(np.bitwise_or(r, g), b),
w).astype(int)
# You can only use ws2811_leds_set with the custom version.
for i in range(self._led_count):
ws.ws2811_led_set(self.channel, i, int(grbw[i].item()))
else:
# Sort the colors as RGB type.
g = np.left_shift(output_array[1][:].astype(int), 16) # pylint: disable=assignment-from-no-return
r = np.left_shift(output_array[0][:].astype(int), 8) # pylint: disable=assignment-from-no-return
b = output_array[2][:].astype(int)
grb = np.bitwise_or(np.bitwise_or(r, g), b).astype(int)
# You can only use ws2811_leds_set with the custom version.
for i in range(self._led_count):
ws.ws2811_led_set(self.channel, i, grb[i].item())
resp = ws.ws2811_render(self._leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
f'ws2811_render failed with code {resp} ({message})')
def set_leds(self, status):
""" Set the color according to the humidity threshold
In the optimal state when no threshold is reached the
led is turned off.
@param status: An integer array with 4 integers between 0 and 4
@type status: int[4]
@return: None
"""
leds = ws.new_ws2811_t()
channel = ws.ws2811_channel_get(leds, self.get_channel())
ws.ws2811_channel_t_count_set(channel, self.get_count())
ws.ws2811_channel_t_gpionum_set(channel, self.get_gpio())
ws.ws2811_channel_t_invert_set(channel, self.get_invert())
ws.ws2811_channel_t_brightness_set(channel, self.get_brightness())
ws.ws2811_t_freq_set(leds, self.get_freq())
ws.ws2811_t_dmanum_set(leds, self.get_dma())
try:
resp = ws.ws2811_init(leds)
except Exception as err:
raise RuntimeError('ws2811_init failed with code {0} ({1}) {}', resp, err)
finally:
if resp != ws.WS2811_SUCCESS:
ws.ws2811_get_return_t_str(resp)
try:
for i in range(self.get_count()):
ws.ws2811_led_set(channel, i, self.get_color(status[i]))
resp = ws.ws2811_render(leds)
if resp != ws.WS2811_SUCCESS:
ws.ws2811_get_return_t_str(resp)
time.sleep(0.015)
except Exception as err:
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(resp, err))
finally:
logging.getLogger().info("LED status:\t\t\t{}".format(status))
ws.ws2811_fini(leds)
ws.delete_ws2811_t(leds)
def show(self):
"""Update the display with the data from the LED buffer."""
resp = ws.ws2811_render(self._leds)
if resp != 0:
raise RuntimeError('ws2811_render failed with code {0}'.format(resp))
# Wrap following code in a try/finally to ensure cleanup functions are called
# after library is initialized.
try:
offset = 0
while True:
# Update each LED color in the buffer.
for i in range(LED_COUNT):
# Pick a color based on LED position and an offset for animation.
color = DOT_COLORS[(i + offset) % len(DOT_COLORS)]
# Set the LED color buffer value.
ws.ws2811_led_set(channel, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(0.25)
# Increase offset to animate colors moving. Will eventually overflow, which
# is fine.
offset += 1
finally:
# Ensure ws2811_fini is called before the program quits.
ws.ws2811_fini(leds)
# Example of calling delete function to clean up structure memory. Isn't
# Wrap following code in a try/finally to ensure cleanup functions are called
# after library is initialized.
try:
# Set LED data array on the ws2811_t structure. Be sure to do this AFTER the
# init function is called as it clears out the LEDs.
ws.ws2811_t_leds_set(leds, led_data)
# Loop forever or until ctrl-c is pressed.
offset = 0
while True:
# Update each LED color in the buffer.
for i in range(LED_COUNT):
# Pick a color based on LED position and an offset for animation.
color = DOT_COLORS[(i + offset) % len(DOT_COLORS)]
# Set the LED color buffer value.
ws.led_data_setitem(led_data, i, color)
# Send the LED color data to the hardware.
resp = ws.ws2811_render(leds)
if resp != 0:
raise RuntimeError('ws2811_render failed with code {0}'.format(resp))
# Delay for a small period of time.
time.sleep(0.25)
# Increase offset to animate colors moving. Will eventually overflow, which
# is fine.
offset += 1
finally:
# Ensure ws2811_fini is called before the program quits.
ws.ws2811_fini(leds)
# Example of calling delete function to clean up structure memory. Isn't
# strictly necessary at the end of the program execution here, but is good practice.
ws.delete_ws2811_t(leds)
def ws2811_render(*args):
return _rpi_ws281x.ws2811_render(*args)
def show(self):
ws.ws2811_render(self._data)
def ws2811_render(ws2811):
return _rpi_ws281x.ws2811_render(ws2811)
def neopixel_write(gpio, buf):
"""NeoPixel Writing Function"""
global _led_strip # we'll have one strip we init if its not at first
if _led_strip is None:
# Create a ws2811_t structure from the LED configuration.
# Note that this structure will be created on the heap so you
# need to be careful that you delete its memory by calling
# delete_ws2811_t when it's not needed.
_led_strip = ws.new_ws2811_t()
# Initialize all channels to off
for channum in range(2):
channel = ws.ws2811_channel_get(_led_strip, channum)
ws.ws2811_channel_t_count_set(channel, 0)
ws.ws2811_channel_t_gpionum_set(channel, 0)
ws.ws2811_channel_t_invert_set(channel, 0)
ws.ws2811_channel_t_brightness_set(channel, 0)
channel = ws.ws2811_channel_get(_led_strip, LED_CHANNEL)
# Initialize the channel in use
count = 0
if len(buf) % 3 == 0:
# most common, divisible by 3 is likely RGB
LED_STRIP = ws.WS2811_STRIP_RGB
count = len(buf) // 3
elif len(buf) % 4 == 0:
LED_STRIP = ws.SK6812_STRIP_RGBW
count = len(buf) // 4
else:
raise RuntimeError("We only support 3 or 4 bytes-per-pixel")
ws.ws2811_channel_t_count_set(
channel, count
) # we manage 4 vs 3 bytes in the library
ws.ws2811_channel_t_gpionum_set(channel, gpio._pin.id)
ws.ws2811_channel_t_invert_set(channel, LED_INVERT)
ws.ws2811_channel_t_brightness_set(channel, LED_BRIGHTNESS)
ws.ws2811_channel_t_strip_type_set(channel, LED_STRIP)
# Initialize the controller
ws.ws2811_t_freq_set(_led_strip, LED_FREQ_HZ)
ws.ws2811_t_dmanum_set(_led_strip, LED_DMA_NUM)
resp = ws.ws2811_init(_led_strip)
if resp != ws.WS2811_SUCCESS:
if resp == -5:
raise RuntimeError(
"NeoPixel support requires running with sudo, please try again!"
)
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
"ws2811_init failed with code {0} ({1})".format(resp, message)
)
atexit.register(neopixel_cleanup)
channel = ws.ws2811_channel_get(_led_strip, LED_CHANNEL)
if gpio._pin.id != ws.ws2811_channel_t_gpionum_get(channel):
raise RuntimeError("Raspberry Pi neopixel support is for one strip only!")
if ws.ws2811_channel_t_strip_type_get(channel) == ws.WS2811_STRIP_RGB:
bpp = 3
else:
bpp = 4
# assign all colors!
for i in range(len(buf) // bpp):
r = buf[bpp * i]
g = buf[bpp * i + 1]
b = buf[bpp * i + 2]
if bpp == 3:
pixel = (r << 16) | (g << 8) | b
else:
w = buf[bpp * i + 3]
pixel = (w << 24) | (r << 16) | (g << 8) | b
ws.ws2811_led_set(channel, i, pixel)
resp = ws.ws2811_render(_led_strip)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError(
"ws2811_render failed with code {0} ({1})".format(resp, message)
)
time.sleep(0.001 * ((len(buf) // 100) + 1)) # about 1ms per 100 bytes
def show(self):
"""Update the display with the data from the LED buffer."""
resp = ws.ws2811_render(self._leds)
if resp != 0:
raise RuntimeError(
'ws2811_render failed with code {0}'.format(resp))
def cleanup(self):
self.LED_BRIGHTNESS = 0
print('Cleaning up...')
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, 0x000000)
ws.ws2811_render(self.leds)
def cleanup(self):
self.LED_BRIGHTNESS = 0
print('Cleaning up...')
for i in range(self.LED_COUNT):
ws.ws2811_led_set(self.channel, i, 0x000000)
ws.ws2811_render(self.leds)
def ws2811_render(*args): return _rpi_ws281x.ws2811_render(*args)
def BrightnessLED(channel, bright):
ws.ws2811_channel_t_brightness_set(channel, bright)
# Send the LED color data to the hardware.
ws.ws2811_render(leds)
def show(self):
"""Update the display with the data from the LED buffer."""
resp = ws.ws2811_render(self._leds)
if resp != ws.WS2811_SUCCESS:
message = ws.ws2811_get_return_t_str(resp)
raise RuntimeError('ws2811_render failed with code {0} ({1})'.format(resp, message))
