def manual_move_loop():
import RPi.GPIO as GPIO
from time import sleep
from GPIOUtility import curtain_is_closed, curtain_is_fully_open, motor_is_engaged
from DBFunctions import connect_to_DB, curtain_length, \
current_position, set_current_position
while True:
cnx, cursor = connect_to_DB()
if motor_is_engaged(
): # motor is currently activated; wait before next check
sleep(INTERVAL_BETWEEN_MANUAL_MOVEMENT_CHECKS)
continue
length = curtain_length(cursor)
position = current_position(cursor)
# if curtain open and position not marked at open end
if curtain_is_fully_open() and length != position:
DBFunctions.set_current_position(cnx, cursor, length)
# if curtain closed and position not marked at closed end
elif curtain_is_closed() and position:
DBFunctions.set_current_position(cnx, cursor, 0)
cnx.close()
sleep(INTERVAL_BETWEEN_MANUAL_MOVEMENT_CHECKS)
def predictor_loop():
from DBFunctions import connect_to_DB, event_predictor
while True:
cnx, cursor = connect_to_DB()
if event_predictor(cursor):
schedule_future_events()
sleep(EVENT_PREDICTOR_SLEEP)
cnx.close()
sleep(EVENT_PREDICTOR_CHECK_SLEEP)
def sunrise_loop(): from DBFunctions import add_event, connect_to_DB, curtain_length, \ event_set_at_approximate_time, sunrise_open while True: cnx, cursor = connect_to_DB() if sunrise_open(cursor): sunrise = sunrise_time() if is_null_sleep_then(sunrise): continue open_position = curtain_length(cursor) if not event_set_at_approximate_time(cursor, open_position, sunrise): add_event(cnx, cursor, open_position, sunrise) sleep(SUNRISE_LOOP_WAIT) cnx.close()
def sunset_loop(): from DBFunctions import add_event, connect_to_DB, \ event_set_at_approximate_time, sunset_close while True: cnx, cursor = connect_to_DB() if sunset_close(cursor): sunset = sunset_time() if is_null_sleep_then(sunset): continue # check if sunset event already set if not event_set_at_approximate_time(cursor, 0, sunset): add_event(cnx, cursor, 0, sunset) sleep(SUNSET_LOOP_WAIT) cnx.close()