51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
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"""
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Module to test the GPIO input on the Raspberry Pi.
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"""
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from collections import deque
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from ..gpio_handler import Constants, GPIOHandler
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def button_test():
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"""
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GPIO button test. Checks for a GPIO input and prints it out, simple as that.
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"""
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running = True
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# Exit code used to quit the button test.
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exit_code = deque()
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for button in ['j_d', 'j_d', 'j_u', 'j_u', 'j_d', 'j_d', 'j_u', 'j_u', 'a', 'a', 'b']:
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exit_code.append(button)
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# Input log to check for quitting out of the button test.
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input_log = deque()
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GPIOHandler.setup()
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def log(pressed_button):
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"""
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Logs the pressed button into the input log.
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:param pressed_button:
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"""
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input_log.append(pressed_button)
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if len(input_log) > len(exit_code): # Don't let the input log exceed the length of the exit code.
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input_log.popleft()
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def check_exit():
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"""
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Check if the input log and the exit code are the same. If they are, quit the button test.
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"""
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nonlocal running
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if exit_code == input_log:
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running = False
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while running:
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for button in Constants.buttons:
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code = Constants.buttons.get(button)
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if GPIOHandler.get_press(code): # If a button is pressed, print it out and do a quit check.
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print('event: {0}'.format(button))
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log(button)
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check_exit()
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GPIOHandler.teardown()
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