pocket-friends/data/development/button_test.py
2021-05-29 17:23:56 -04:00

51 lines
1.4 KiB
Python

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