86 lines
2.3 KiB
Python
Executable File
86 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""buttond.py: Watch a Rasberry Pi GPIO button. Exec Hog4 comment macros."""
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__author__ = "Kevin Matz"
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__copyright__ = "Copyright 2019, Company 235, LLC"
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__credits__ = ["Kevin Matz"]
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__license__ = "MIT"
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__version__ = "1.0"
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__maintainer__ = "Kevin Matz"
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__email__ = "kevin@company235.com"
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__status__ = "Prototype"
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import configparser
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from bacon.script import comment
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from gpiozero import Button, GPIODeviceError
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from signal import pause
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# use mock pins when not working on Pi hardware
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# from gpiozero.pins.mock import MockFactory
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# from gpiozero import Device
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# Device.pin_factory = MockFactory()
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# callback intermidiary to sanitize user input
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def _activate(macro):
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if macro is None:
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return
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macro = macro.strip('\"').upper()
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if macro is "":
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return
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# pass macro to baconscript
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print("doing macro ", macro)
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comment(macro)
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# empty button directory
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_buttons = {}
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# open config file
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config = configparser.ConfigParser(allow_no_value=True)
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config.read('buttons.cfg')
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# set up each buttons
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for b in config.get('button', 'names').split(','):
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try:
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# move to config section
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c = config[b]
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# read from settings
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pin = c.get('pin', None)
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closed = c.get('close', None)
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opened = c.get('open', None)
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# set up button on pin
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print('init', b, 'on GPIO', pin)
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_buttons[b] = Button(pin)
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# connect button callbacks to anonymous functions
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print('connecting', b, '"closed" to macro', closed)
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_buttons[b].when_pressed = lambda macro=closed: _activate(macro)
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print('connecting', b, '"opened" to macro', opened)
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_buttons[b].when_released = lambda macro=opened: _activate(macro)
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except (KeyError, GPIODeviceError) as e:
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print('Error configuring button', b, e)
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continue
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# clear temp variables off the stack
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try:
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del pin, closed, opened
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del c, config
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except NameError as e:
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print('failed to release memory', e)
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# when run directly, sleep until button signal or KeyboardInterrupt
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if __name__ == '__main__':
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try:
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pause()
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except KeyboardInterrupt:
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print()
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else:
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# indicate prefered method of sleeping when laoded as a module
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print('call signal.pause() instead of time.sleep()')
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