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56 lines
2.3 KiB
Python
56 lines
2.3 KiB
Python
# Support for executing gcode when a hardware button is pressed or released.
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#
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# Copyright (C) 2019 Alec Plumb <alec@etherwalker.com>
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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 logging
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class GCodeButton:
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def __init__(self, config):
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self.printer = config.get_printer()
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self.name = config.get_name().split(' ')[-1]
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self.pin = config.get('pin')
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self.last_state = 0
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buttons = self.printer.load_object(config, "buttons")
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analog_range = config.get('analog_range', None)
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if analog_range is None:
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buttons.register_buttons([self.pin], self.button_callback)
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else:
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try:
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amin, amax = map(float, analog_range.split(','))
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except:
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raise config.error("Unable to parse analog_range")
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pullup = config.getfloat('analog_pullup_resistor', 4700., above=0.)
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buttons.register_adc_button(self.pin, amin, amax, pullup,
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self.button_callback)
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gcode_macro = self.printer.load_object(config, 'gcode_macro')
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self.press_template = gcode_macro.load_template(config, 'press_gcode')
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self.release_template = gcode_macro.load_template(config,
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'release_gcode', '')
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self.gcode = self.printer.lookup_object('gcode')
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self.gcode.register_mux_command("QUERY_BUTTON", "BUTTON", self.name,
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self.cmd_QUERY_BUTTON,
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desc=self.cmd_QUERY_BUTTON_help)
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cmd_QUERY_BUTTON_help = "Report on the state of a button"
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def cmd_QUERY_BUTTON(self, gcmd):
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gcmd.respond_info(self.name + ": " + self.get_status()['state'])
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def button_callback(self, eventtime, state):
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self.last_state = state
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template = self.press_template
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if not state:
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template = self.release_template
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try:
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self.gcode.run_script(template.render())
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except:
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logging.exception("Script running error")
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def get_status(self, eventtime=None):
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if self.last_state:
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return {'state': "PRESSED"}
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return {'state': "RELEASED"}
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def load_config_prefix(config):
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return GCodeButton(config)
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