def main():
global BACKLIGHT_STATUS
ALARM_TIME, TONE, DURATION, WEEKDAYS_ONLY, ENABLED = load_config(SETTINGS)
# Initialize the buttons
GPIO.setmode(GPIO.BCM)
GPIO.setup(GREEN_BUTTON, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(BLUE_BUTTON, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(RED_BUTTON, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
# Backlight Toggle
GPIO.setup(BACKLIGHT, GPIO.OUT)
GPIO.output(BACKLIGHT, BACKLIGHT_STATUS)
GPIO.add_event_detect(GREEN_BUTTON, GPIO.RISING, callback=toggle_backlight)
# Initialize the lcd object
lcd = characterlcd.Character_LCD_Mono(lcd_rs, lcd_en, lcd_d4, lcd_d5,
lcd_d6, lcd_d7, LCD_COLUMNS,
LCD_ROWS)
lcd.clear()
# Initialize logger
logging.basicConfig(filename="clock.log",
format='%(asctime)s - %(message)s',
datefmt='%d-%b-%y %H:%M:%S',
level=logging.INFO)
alarm = Alarm(ALARM_TIME, lcd, TONE, DURATION)
if ENABLED:
alarm.start()
logging.info("Started - Alarm ENABLED")
# Setup the logger
logging.basicConfig(filename="Rpi-Clock.log",
level=LOGGING_LEVEL,
format='%(asctime)s - %(message)s',
datefmt='%d-%b-%y %H:%M:%S')
logging.info(START_TEXT)
try:
while True:
# Don't overwrite alarm text with stock times
# Ensure backlight is on during alarm
while alarm.alarming:
# Stop the alarm with blue button press.
while GPIO.input(BLUE_BUTTON) == GPIO.HIGH:
alarm.stop_alarm()
message(lcd, "STOPPED ALARM")
logging.info("Stopped alarm from BLUE button.")
BACKLIGHT_STATUS = True
GPIO.output(BACKLIGHT, BACKLIGHT_STATUS)
sleep(1)
# Grab and display time
lcd.message = get_formatted_times(ALARM_TIME.strftime("%H:%M"),
weekdays_only=WEEKDAYS_ONLY,
enabled=ENABLED)
logging.debug("Updated time")
# Power off if red button is held for 3 seconds
while GPIO.input(RED_BUTTON) == GPIO.HIGH:
for i in range(3):
if i == 0:
lcd.clear()
lcd.message = f"Shutting down {3 - i}"
if i == 3:
logging.info("Poweroff from RED button.")
safe_exit(lcd, alarm)
sleep(1)
# Reload the config on blue button press.
while GPIO.input(BLUE_BUTTON) == GPIO.HIGH and not alarm.alarming:
ALARM_TIME, TONE, DURATION, WEEKDAYS_ONLY, ENABLED = load_config(
SETTINGS)
alarm.kill()
if ENABLED:
logging.info("Config Reloaded - Alarm Enabled")
alarm = Alarm(ALARM_TIME, lcd, TONE, DURATION)
alarm.start()
else:
logging.info("Config Reloaded - Alarm Disabled")
message(lcd, "Reloaded Config")
sleep(1)
except KeyboardInterrupt:
safe_exit(lcd, alarm)
except Exception:
logging.fatal("Exception occured", exc_info=True)
