def __init__(self, *args, pin=4, **kwargs):
super(AM2302, self).__init__(*args, **kwargs)
self.pin = pin
self.temp_char = self.get_service("TemperatureSensor")\
.get_characteristic("CurrentTemperature")
self.humidity_char = self.get_service("HumiditySensor")\
.get_characteristic("CurrentRelativeHumidity")
self.sensor = DHT22.sensor(pigpio.pi(), pin)
def __init__(self, *args, pin=4, **kwargs):
super().__init__(*args, **kwargs)
self.pin = pin
serv_temp = self.add_preload_service('TemperatureSensor')
serv_humidity = self.add_preload_service('HumiditySensor')
self.char_temp = serv_temp.get_characteristic('CurrentTemperature')
self.char_humidity = serv_humidity \
.get_characteristic('CurrentRelativeHumidity')
self.sensor = DHT22.sensor(pigpio.pi(), pin)
def __setstate__(self, state):
self.__dict__.update(state)
self.sensor = DHT22.sensor(pigpio.pi(), self.pin)
from time import sleep
import pigpio
from sensors import DHT22
pi = pigpio.pi()
dht22 = DHT22.sensor(pi, 27)
HUMID_LOWER_LIMIT = 75 # percent
DRY_UPPER_LIMIT = 25 # percent
is_initialised = False
def init_sensor():
dht22.trigger()
sleep(0.5)
global is_initialised
is_initialised = True
def get_humidity():
if not is_initialised:
init_sensor()
dht22.trigger()
return dht22.humidity()
def is_humid():
return get_humidity() >= HUMID_LOWER_LIMIT