def detect_and_record_motion():
"""
Detects and records motion via interfacing with PIR sensor and camera.
Saves the recording locally then triggers a function to upload/clean up
"""
# Grab folder id from config file
conf = configparser.ConfigParser()
conf.read('config.ini')
vid_pth = conf['tmp_dir']['path']
drive_folder_id = conf['google_drive']['folder_id']
# Create utilities instance
drive_utils = DriveUtilities(drive_service, logger)
# Motion sensor module connected to pin 4 (5v)
pir = MotionSensor(4)
camera = PiCamera()
camera.resolution = (1280, 720)
camera.vflip = True
try:
while True:
# PIR sensor triggered, camera starts recording for a minimum of 10 seconds
pir.wait_for_active()
logger.info('>>>PIR sensor: Motion detected')
triggered_datetime = datetime.datetime.today().strftime(
'%Y-%m-%d_%H-%M-%S')
file_path = vid_pth + triggered_datetime + '.h264'
camera.start_recording(file_path)
camera.annotate_background = Color('red')
camera.annotate_text_size = 20
camera.annotate_text = triggered_datetime
time.sleep(10)
# PIR sensor becomes inactive, camera stops recording and file is uploaded
pir.wait_for_inactive()
camera.stop_recording()
logger.info('>>>PIR sensor: Motion ended')
clean_and_upload(file_path, drive_utils, drive_folder_id)
except KeyboardInterrupt:
camera.close()
sys.exit()
from gpiozero import MotionSensor, Buzzer
import time
pir = MotionSensor(4)
bz = Buzzer(3)
print("{} Waiting for PIR to stabilize".format(
time.strftime("%B %d, %H:%M:%S")))
pir.wait_for_inactive()
while True:
print("Ready")
pir.wait_for_active()
print("{0} Motion detected".format(time.strftime("%B %d, %H:%M:%S")))
bz.beep(0.25, 0.5, 4)
time.sleep(1)
import time
from gpiozero import LED, MotionSensor, Buzzer
motion_sensor = MotionSensor(4)
led = LED(2)
buzzer = Buzzer(17)
try:
while True:
motion_sensor.wait_for_active()
print("Motion detected")
buzzer.beep(n=2)
led.blink(n=2)
time.sleep(2)
finally:
buzzer.off()
led.off()
class Infrared():
'''
Infrared Task: reacts to infrared sensors.
Parameters:
pin: the GPIO pin used as an input
event: the Event to be sent when the sensor is activated
queue: the message queue receiving activation notifications
level: the logging Level
Usage:
PIN = 12
_infrared = Infrared(_queue, PIN, Orientation.PORT, Event.INFRARED_PORT, Level.INFO)
_infrared.enable()
'''
THRESHOLD_VALUE = 0.1 # the value above which the device will be considered “on”
DEACTIVATE_TIMEOUT_SEC = 0.01 # how long we wait to deactivate after being activated. If None (the default) then wait indefinitely.
# DEACTIVATE_TIMEOUT_SEC = None
ACTIVATE_TIMEOUT_SEC = 0.2 # | 1.0 how long we wait to activate after being deactivated. If None (the default) then wait indefinitely.
# ACTIVATE_TIMEOUT_SEC = None
# ..........................................................................
def __init__(self, queue, pin, orientation, event, level):
self._queue = queue
self._pin = pin
self._orientation = orientation
self._event = event
self._label = event.description
self._log = Logger("infrared:" + self._orientation.label, level)
self._log.debug('initialising {} infrared:{} on pin {}.'.format(
orientation.label, self._label, pin))
self._closed = False
self._enabled = False
self._sensor = MotionSensor(pin,
threshold=Infrared.THRESHOLD_VALUE,
pull_up=True)
self._sensor.when_motion = self._activated
self._sensor.when_no_motion = self._deactivated
self._log.info('ready.')
# ..........................................................................
def enable(self):
if not self._closed:
self._log.info('enabled infrared:{}'.format(self._label))
self._enabled = True
else:
self._log.warning('cannot enable infrared:{} (closed)'.format(
self._label))
# ..........................................................................
def disable(self):
self._log.info('disabled infrared:{}'.format(self._label))
self._enabled = False
# ..........................................................................
def _activated(self):
'''
The default function called when the sensor is activated.
'''
if self._enabled:
if self._orientation is Orientation.PORT or self._orientation is Orientation.PORT_SIDE:
self._log.info(
Fore.RED + 'activated {} infrared:{} on pin {}...'.format(
self._orientation.label, self._label, self._pin))
elif self._orientation is Orientation.STBD or self._orientation is Orientation.STBD_SIDE:
self._log.info(
Fore.GREEN +
'activated {} infrared:{} on pin {}...'.format(
self._orientation.label, self._label, self._pin))
else:
self._log.info(
Fore.YELLOW +
'activated {} infrared:{} on pin {}...'.format(
self._orientation.label, self._label, self._pin))
self._queue.add(Message(self._event))
if Infrared.ACTIVATE_TIMEOUT_SEC:
self._sensor.wait_for_inactive(
timeout=Infrared.ACTIVATE_TIMEOUT_SEC)
else:
self._log.info(
'[DISABLED] activated infrared:{} on pin {}...'.format(
self._label, self._pin))
# ..........................................................................
def _deactivated(self):
'''
The default function called when the sensor is deactivated.
'''
if self._enabled:
self._log.debug(
Style.DIM + 'deactivated {} infrared:{} on pin {}...'.format(
self._orientation.label, self._label, self._pin) +
Style.RESET_ALL)
if Infrared.DEACTIVATE_TIMEOUT_SEC:
self._sensor.wait_for_active(
timeout=Infrared.DEACTIVATE_TIMEOUT_SEC)
else:
self._log.debug(
'[DISABLED] deactivated infrared:{} on pin {}...'.format(
self._label, self._pin))
# ..........................................................................
def close(self):
'''
Permanently close and disable the infrared sensor.
'''
self._closed = True
self._enabled = False
self._log.info('closed.')
