def read_DHT22():
dt_Obj = dt()
data = {}
if Adafruit_Lib == True:
Humidity, Temperature = dht.read_retry(dht.DHT22,
int(DHT22_Settings['DATA']))
data['sid'] = DHT22_Settings['SENSOR_ID']
data['dt'] = str(dt_Obj.get_DB_datetime_str())
data['temp'] = '{0:0.2f}'.format(Temperature)
data['humi'] = '{0:0.2f}'.format(Humidity)
else:
dht22_Obj = DHT22_Sensor()
dht22_Obj.read_Data()
data['sid'] = DHT22_Settings['SENSOR_ID']
data['dt'] = str(dt_Obj.get_DB_datetime_str())
data['temp'] = dht22_Obj.Temperature
data['humi'] = dht22_Obj.Humidity
del dht22_Obj
json_data = json.dumps(data)
del dt_Obj
return json_data
def capture_and_add_to_upload_queue(motion_Start_Json_Data):
#Read Sensor Data
json_Dict = json.loads(motion_Start_Json_Data)
SensorID = json_Dict['sid']
Motion_Event_Date = json_Dict['dt']
#Generate Video File Name
DateObj = dt()
File_Name = DateObj.get_Video_Name_datetime_str(Motion_Event_Date)
del DateObj
#Start Capturing Video
File_Path = capture_MP4_Video(File_Name,
int(PIR_MOTION_STATUS_HOLD_TIME) - 2)
#Insert record in upload queue
File_Name = File_Name + r".mp4"
db_Obj = DatabaseManager()
db_Obj.add_del_update_db_record(
"insert into PiCamera_File_Upload_Temp_Data (SensorID, Motion_Event_Date_n_Time, FileName, FilePath, Upload_Status, No_Of_Upload_Retries, Upload_At) values (?,?,?,?,?,?,?)",
[
SensorID, Motion_Event_Date, File_Name, File_Path, 'Pending', 0,
Video_Upload_Location
])
del db_Obj
return
def read_LIGHT():
# Set GPIO High to supply 3V Power to Circuit
GPIO.output(int(Light_Sensor_Settings['POWER']), GPIO.HIGH)
RCpin = int(Light_Sensor_Settings['DATA'])
reading = 0
GPIO.setup(RCpin, GPIO.OUT)
GPIO.output(RCpin, GPIO.LOW)
time.sleep(0.1)
GPIO.setup(RCpin, GPIO.IN)
# This takes about 1 millisecond per loop cycle
while (GPIO.input(RCpin) == GPIO.LOW):
reading += 1
GPIO.output(int(Light_Sensor_Settings['POWER']), GPIO.LOW)
dt_Obj = dt()
data = {}
data['sid'] = Light_Sensor_Settings['SENSOR_ID']
data['dt'] = str(dt_Obj.get_DB_datetime_str())
data['light'] = reading
del dt_Obj
#Return light reading
json_data = json.dumps(data)
return json_data
def read_BMP180():
dt_Obj = dt()
data = {}
sensor = BMP085.BMP085()
data['sid'] = str(BMP180_Settings['SENSOR_ID'])
data['dt'] = dt_Obj.get_DB_datetime_str()
data['pres'] = format(sensor.read_pressure())
data['pres_at_sea_level'] = '{0:0.2f}'.format(sensor.read_sealevel_pressure())
data['alti'] = '{0:0.2f}'.format(sensor.read_altitude())
data['temp'] = '{0:0.2f}'.format(sensor.read_temperature())
json_data = json.dumps(data)
del dt_Obj
return json_data
def read_PIR_Motion_Sensor(self, event_Listener_Function):
#Initialize Variables
Previous_Motion_State = 0
Current_Motion_State = 0
Motion_Start_Time = None
dt_Obj = dt()
#Keep Reading Sensor
while True:
Previous_Motion_State = Current_Motion_State
#Read Motion Sensor
Current_Motion_State = GPIO.input(Data_Pin)
if Current_Motion_State != Previous_Motion_State:
#Prepare json data
data = {}
data['sid'] = str(Motion_Sensor_Settings['SENSOR_ID'])
data['dt'] = dt_Obj.get_DB_datetime_str()
if Current_Motion_State == 1:
data['Motion_Detected'] = True
Motion_Start_Time = data['dt']
else:
data['Motion_Detected'] = False
data['Motion_Start_Time'] = Motion_Start_Time
json_data = json.dumps(data)
#Invoke Event Listener Function in new Thread
event_thread = threading.Thread(
target=event_Listener_Function,
args=[json_data, data['Motion_Detected']])
self.event_Thread_ID = event_thread.start()
# In case of Motion, Hold the state for some time.
if data['Motion_Detected'] == True:
time.sleep(
Decimal(
Motion_Sensor_Settings['MOTION_STATUS_HOLD_TIME']))
#Hold for Polling Interval
time.sleep(Decimal(Motion_Sensor_Settings['POLLING_INTERVAL']))
del dt_Obj
return
def __init__(self): # Initialize Objects self.db_Obj = DatabaseManager() self.dt_Obj = dt()
def __init__(self):
#Initialize Objects
self.gdObj = gDrive()
self.DateObj = dt()
self.db_Obj = DatabaseManager()