mirror of https://github.com/Desuuuu/klipper.git
dotstar: Initial support for "dotstar" LEDs
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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@ -1654,9 +1654,9 @@
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# Neopixel (aka WS2812) LED support (one may define any number of
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# sections with a "neopixel" prefix). One may set the LED color via a
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# "SET_NEOPIXEL NEOPIXEL=my_neopixel RED=0.1 GREEN=0.1 BLUE=0.1" type
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# extended g-code commands.
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# sections with a "neopixel" prefix). One may set the LED color via
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# "SET_LED LED=my_neopixel RED=0.1 GREEN=0.1 BLUE=0.1" type extended
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# g-code commands.
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#[neopixel my_neopixel]
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#pin:
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# The pin connected to the neopixel. This parameter must be
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@ -1671,6 +1671,23 @@
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# Sets the initial LED color of the Neopixel. Each value should be
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# between 0.0 and 1.0. The default for each color is 0.
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# Dotstar (aka APA102) LED support (one may define any number of
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# sections with a "dotstar" prefix). One may set the LED color via
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# "SET_LED LED=my_dotstar RED=0.1 GREEN=0.1 BLUE=0.1" type extended
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# g-code commands.
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#[dotstar my_dotstar]
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#data_pin:
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# The pin connected to the data line of the dotstar. This parameter
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# must be provided.
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#clock_pin:
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# The pin connected to the clock line of the dotstar. This parameter
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# must be provided.
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#chain_count:
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#initial_RED: 0.0
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#initial_GREEN: 0.0
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#initial_BLUE: 0.0
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# See the "neopixel" section for information on these parameters.
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# Firmware filament retraction. This enables G10 (retract) and G11
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# (unretract) GCODE commands issued by many slicers. The parameters
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@ -6,6 +6,8 @@ All dates in this document are approximate.
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# Changes
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20190806: The SET_NEOPIXEL command has been renamed to SET_LED.
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20190726: The mcp4728 digital-to-analog code has changed. The default
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i2c_address is now 0x60 and the voltage reference is now relative to
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the mcp4728's internal 2.048 volt reference.
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@ -191,17 +191,17 @@ The following command is available when an "output_pin" config section
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is enabled:
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- `SET_PIN PIN=config_name VALUE=<value>`
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## Neopixel Commands
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## Neopixel and Dotstar Commands
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The following command is available when a "neopixel" config section
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is enabled:
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- `SET_NEOPIXEL NEOPIXEL=<config_name> INDEX=<index> RED=<value>
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GREEN=<value> BLUE=<value>`: This sets the Neopixel LED output. Each
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color <value> must be between 0.0 and 1.0. If multiple Neopixel
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chips are daisy-chained then one may specify INDEX to alter the
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color of just the given Neopixel chip (1 for the first Neopixel, 2
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for the second, etc.). If INDEX is not provided then all Neopixels
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in the daisy-chain will be set to the provided color.
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The following command is available when "neopixel" or "dotstar" config
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sections are enabled:
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- `SET_LED LED=<config_name> INDEX=<index> RED=<value> GREEN=<value>
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BLUE=<value>`: This sets the LED output. Each color <value> must be
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between 0.0 and 1.0. If multiple LED chips are daisy-chained then
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one may specify INDEX to alter the color of just the given chip (1
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for the first chip, 2 for the second, etc.). If INDEX is not
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provided then all LEDs in the daisy-chain will be set to the
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provided color.
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## Servo Commands
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@ -0,0 +1,61 @@
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# Support for "dotstar" leds
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#
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# Copyright (C) 2019 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import bus
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class PrinterDotstar:
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def __init__(self, config):
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self.printer = config.get_printer()
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name = config.get_name().split()[1]
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# Configure a software spi bus
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ppins = self.printer.lookup_object('pins')
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data_pin_params = ppins.lookup_pin(config.get('data_pin'))
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clock_pin_params = ppins.lookup_pin(config.get('clock_pin'))
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mcu = data_pin_params['chip']
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if mcu is not clock_pin_params['chip']:
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raise config.error("Dotstar pins must be on same mcu")
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sw_spi_pins = (data_pin_params['pin'], data_pin_params['pin'],
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clock_pin_params['pin'])
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self.spi = bus.MCU_SPI(mcu, None, None, 0, 500000, sw_spi_pins)
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# Initial color
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self.chain_count = config.getint('chain_count', 1, minval=1, maxval=12)
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red = config.getfloat('initial_RED', 0., minval=0., maxval=1.)
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green = config.getfloat('initial_GREEN', 0., minval=0., maxval=1.)
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blue = config.getfloat('initial_BLUE', 0., minval=0., maxval=1.)
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red = int(red * 255. + .5)
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blue = int(blue * 255. + .5)
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green = int(green * 255. + .5)
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color_data = [0xff, blue, green, red] * self.chain_count
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self.color_data = [0, 0, 0, 0] + color_data + [0xff, 0xff, 0xff, 0xff]
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self.printer.register_event_handler("klippy:connect", self.send_data)
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# Register commands
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self.gcode = self.printer.lookup_object('gcode')
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self.gcode.register_mux_command("SET_LED", "LED", name,
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self.cmd_SET_LED,
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desc=self.cmd_SET_LED_help)
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def send_data(self, minclock=0):
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self.spi.spi_send(self.color_data, minclock=minclock, reqclock=minclock)
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cmd_SET_LED_help = "Set the color of an LED"
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def cmd_SET_LED(self, params):
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# Parse parameters
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red = self.gcode.get_float('RED', params, 0., minval=0., maxval=1.)
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green = self.gcode.get_float('GREEN', params, 0., minval=0., maxval=1.)
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blue = self.gcode.get_float('BLUE', params, 0., minval=0., maxval=1.)
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red = int(red * 255. + .5)
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blue = int(blue * 255. + .5)
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green = int(green * 255. + .5)
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color_data = [0xff, blue, green, red]
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if 'INDEX' in params:
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index = self.gcode.get_int('INDEX', params,
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minval=1, maxval=self.chain_count)
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self.color_data[index*4:(index+1)*4] = color_data
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else:
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self.color_data[4:-4] = color_data * self.chain_count
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# Send command
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print_time = self.printer.lookup_object('toolhead').get_last_move_time()
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self.send_data(self.spi.get_mcu().print_time_to_clock(print_time))
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def load_config_prefix(config):
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return PrinterDotstar(config)
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@ -29,9 +29,9 @@ class PrinterNeoPixel:
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self.printer.register_event_handler("klippy:connect", self.send_data)
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# Register commands
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self.gcode = self.printer.lookup_object('gcode')
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self.gcode.register_mux_command("SET_NEOPIXEL", "NEOPIXEL", name,
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self.cmd_SET_NEOPIXEL,
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desc=self.cmd_SET_NEOPIXEL_help)
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self.gcode.register_mux_command("SET_LED", "LED", name,
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self.cmd_SET_LED,
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desc=self.cmd_SET_LED_help)
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def build_config(self):
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if self.mcu.get_constant_float('CLOCK_FREQ') <= 20000000:
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raise self.printer.config_error(
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def send_data(self, minclock=0):
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self.neopixel_send_cmd.send([self.oid, self.color_data],
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minclock=minclock)
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cmd_SET_NEOPIXEL_help = "Set the color of a neopixel led"
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def cmd_SET_NEOPIXEL(self, params):
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cmd_SET_LED_help = "Set the color of an LED"
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def cmd_SET_LED(self, params):
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# Parse parameters
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red = self.gcode.get_float('RED', params, 0., minval=0., maxval=1.)
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green = self.gcode.get_float('GREEN', params, 0., minval=0., maxval=1.)
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