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# Support for "neopixel" leds
#
# Copyright (C) 2019 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
class PrinterNeoPixel:
def __init__(self, config):
self.printer = config.get_printer()
name = config.get_name().split()[1]
# Configure neopixel
ppins = self.printer.lookup_object('pins')
pin_params = ppins.lookup_pin(config.get('pin'))
self.mcu = pin_params['chip']
self.oid = self.mcu.create_oid()
self.mcu.add_config_cmd("config_neopixel oid=%d pin=%s"
% (self.oid, pin_params['pin']))
self.mcu.register_config_callback(self.build_config)
self.neopixel_send_cmd = None
# Register commands
self.gcode = self.printer.lookup_object('gcode')
self.gcode.register_mux_command("SET_NEOPIXEL", "NEOPIXEL", name,
self.cmd_SET_NEOPIXEL,
desc=self.cmd_SET_NEOPIXEL_help)
def build_config(self):
cmd_queue = self.mcu.alloc_command_queue()
self.neopixel_send_cmd = self.mcu.lookup_command(
"neopixel_send oid=%c data=%*s", cq=cmd_queue)
cmd_SET_NEOPIXEL_help = "Set the color of a neopixel led"
def cmd_SET_NEOPIXEL(self, params):
# Parse parameters
red = self.gcode.get_float('RED', params, 0., minval=0., maxval=1.)
green = self.gcode.get_float('GREEN', params, 0., minval=0., maxval=1.)
blue = self.gcode.get_float('BLUE', params, 0., minval=0., maxval=1.)
red = int(red * 255. + .5)
blue = int(blue * 255. + .5)
green = int(green * 255. + .5)
# Send command
print_time = self.printer.lookup_object('toolhead').get_last_move_time()
minclock = self.mcu.print_time_to_clock(print_time)
self.neopixel_send_cmd.send([self.oid, [green, red, blue]],
minclock=minclock)
def load_config_prefix(config):
return PrinterNeoPixel(config)
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