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neopixel: Add support for RGBW LEDs

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2020-10-08 20:06:59 -04:00
parent 2bb30265b5
commit 7263077db5
4 changed files with 36 additions and 17 deletions
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10
config/example-extras.cfg
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@@ -1354,14 +1354,16 @@
# The number of Neopixel chips that are "daisy chained" to the
# provided pin. The default is 1 (which indicates only a single
# Neopixel is connected to the pin).
#color_order_GRB: True
# Set the pixel order to green, red, blue. If using the WS2811 chip
# (in 800Khz mode) then set this to False. The default is True.
#color_order: GRB
# Set the pixel order required by the LED hardware. Options are GRB,
# RGB, GRBW, or RGBW. The default is GRB.
#initial_RED: 0.0
#initial_GREEN: 0.0
#initial_BLUE: 0.0
#initial_WHITE: 0.0
# Sets the initial LED color of the Neopixel. Each value should be
# between 0.0 and 1.0. The default for each color is 0.
# between 0.0 and 1.0. The WHITE option is only available on RGBW
# LEDs. The default for each color is 0.
# Dotstar (aka APA102) LED support (one may define any number of
# sections with a "dotstar" prefix). One may set the LED color via

4
docs/Config_Changes.md
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@@ -6,6 +6,10 @@ All dates in this document are approximate.
# Changes
20201029: The neopixel `color_order_GRB` config option has been
removed. If necessary, update the config to set the new `color_order`
option to RGB, GRB, RGBW, or GRBW.
20201029: The serial option in the mcu config section no longer
defaults to /dev/ttyS0. In the rare situation where /dev/ttyS0 is the
desired serial port, it must be specified explicitly.

5
docs/G-Codes.md
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@@ -259,8 +259,9 @@ is enabled:
The following command is available when "neopixel" or "dotstar" config
sections are enabled:
- `SET_LED LED=<config_name> RED=<value> GREEN=<value> BLUE=<value>
[INDEX=<index>] [TRANSMIT=0]`: This sets the LED output. Each color
<value> must be between 0.0 and 1.0. If multiple LED chips are
WHITE=<value> [INDEX=<index>] [TRANSMIT=0]`: This sets the LED
output. Each color <value> must be between 0.0 and 1.0. The WHITE
option is only valid on RGBW LEDs. If multiple LED chips are
daisy-chained then one may specify INDEX to alter the color of just
the given chip (1 for the first chip, 2 for the second, etc.). If
INDEX is not provided then all LEDs in the daisy-chain will be set

34
klippy/extras/neopixel.py
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@@ -23,16 +23,21 @@ class PrinterNeoPixel:
self.oid = self.mcu.create_oid()
self.pin = pin_params['pin']
self.mcu.register_config_callback(self.build_config)
self.color_order_GRB = config.getboolean("color_order_GRB", True)
self.chain_count = config.getint('chain_count', 1,
minval=1, maxval=MAX_MCU_SIZE//3)
formats = {v: v for v in ["RGB", "GRB", "RGBW", "GRBW"]}
self.color_order = config.getchoice("color_order", formats, "GRB")
elem_size = len(self.color_order)
self.chain_count = config.getint('chain_count', 1, minval=1,
maxval=MAX_MCU_SIZE//elem_size)
self.neopixel_update_cmd = self.neopixel_send_cmd = None
# Initial color
self.color_data = bytearray(self.chain_count * 3)
self.color_data = bytearray(self.chain_count * elem_size)
red = config.getfloat('initial_RED', 0., minval=0., maxval=1.)
green = config.getfloat('initial_GREEN', 0., minval=0., maxval=1.)
blue = config.getfloat('initial_BLUE', 0., minval=0., maxval=1.)
self.update_color_data(red, green, blue)
white = 0
if elem_size == 4:
white = config.getfloat('initial_WHITE', 0., minval=0., maxval=1.)
self.update_color_data(red, green, blue, white)
self.old_color_data = bytearray([d ^ 1 for d in self.color_data])
# Register commands
self.printer.register_event_handler("klippy:connect", self.send_data)
@@ -44,25 +49,31 @@ class PrinterNeoPixel:
rmt = self.mcu.seconds_to_clock(RESET_MIN_TIME)
self.mcu.add_config_cmd("config_neopixel oid=%d pin=%s data_size=%d"
" bit_max_ticks=%d reset_min_ticks=%d"
% (self.oid, self.pin, self.chain_count * 3,
% (self.oid, self.pin, len(self.color_data),
bmt, rmt))
cmd_queue = self.mcu.alloc_command_queue()
self.neopixel_update_cmd = self.mcu.lookup_command(
"neopixel_update oid=%c pos=%hu data=%*s", cq=cmd_queue)
self.neopixel_send_cmd = self.mcu.lookup_query_command(
"neopixel_send oid=%c", "neopixel_result success=%c", cq=cmd_queue)
def update_color_data(self, red, green, blue, index=None):
def update_color_data(self, red, green, blue, white, index=None):
red = int(red * 255. + .5)
blue = int(blue * 255. + .5)
green = int(green * 255. + .5)
if self.color_order_GRB:
white = int(white * 255. + .5)
if self.color_order == "GRB":
color_data = [green, red, blue]
else:
elif self.color_order == "RGB":
color_data = [red, green, blue]
elif self.color_order == "GRBW":
color_data = [green, red, blue, white]
else:
color_data = [red, green, blue, white]
if index is None:
self.color_data[:] = color_data * self.chain_count
else:
self.color_data[(index-1)*3:index*3] = color_data
elem_size = len(color_data)
self.color_data[(index-1)*elem_size:index*elem_size] = color_data
def send_data(self, minclock=0):
old_data, new_data = self.old_color_data, self.color_data
if new_data == old_data:
@@ -97,9 +108,10 @@ class PrinterNeoPixel:
red = gcmd.get_float('RED', 0., minval=0., maxval=1.)
green = gcmd.get_float('GREEN', 0., minval=0., maxval=1.)
blue = gcmd.get_float('BLUE', 0., minval=0., maxval=1.)
white = gcmd.get_float('WHITE', 0., minval=0., maxval=1.)
index = gcmd.get_int('INDEX', None, minval=1, maxval=self.chain_count)
transmit = gcmd.get_int('TRANSMIT', 1)
self.update_color_data(red, green, blue, index)
self.update_color_data(red, green, blue, white, index)
# Send command
if not transmit:
return