def main_client(addr):
nic = network.WIZNET5K(pyb.SPI(2), pyb.Pin.board.Y5, pyb.Pin.board.Y4)
nic.ifconfig((SENSOR_IP, SENSOR_MASK, SENSOR_GATEWAY, SENSOR_DNS))
# print(nic.ifconfig())
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
count = 0
try:
s.connect(addr)
except:
pass
data = {
'serial_no':'1234567890',
'ip':SENSOR_IP,
'op':gOperator['OP_REGISTER'],
'type':gSensorType['TEMPERATURE']
}
DHT22.init()
while True:
pyb.delay(100)
hum, tem = measure()
print('%d hum:%f, tem:%f' % (count,hum, tem))
data['value'] = {'hum':hum, 'tem':tem}
count += 1
try:
send(s, 'post', '/test_pymagic', data)
print(s.recv(4096))
except:
pass
pyb.delay(1000)
def getCalculatedData():
temperatureList = []
humidityList = []
pi = pigpio.pi()
s = DHT22.sensor(pi, 18, LED=16, power=8)
for i in range(1, measuresCount):
s.trigger()
time.sleep(0.2)
humidity = s.humidity()
temperature = s.temperature()
temperatureList.append(temperature)
humidityList.append(humidity)
time.sleep(timeBetweenMeasures)
averageTemperature = 0
if len(temperatureList) > 0:
averageTemperature = averageValue(temperatureList)
averageHumidity = 0
if len(humidityList) > 0:
averageHumidity = averageValue(humidityList)
return {"temperature": averageTemperature, "humidity": averageHumidity}
def integrated():
global schedule_str
global weather_str
global mise_str
global U_arrive_str
global D_arrive_str
global now_temp
ip_parser()
weather_status = weather_parse()
mise_status = mise_parse()
metro_parse()
scheduleRows = smdb.getSchedule()
schedule_str = "Schedule Time : " + str(
scheduleRows[0]['schedule_time']) + "Subject : " + str(
scheduleRows[0]['subject'])
weather_str = "Weather : " + weather_status
mise_str = "Fine Dust : " + mise_status
U_arrive_str = now_arrive_U
D_arrive_str = now_arrive_D
tempData = smdb.getTemp()
min_temp = tempData[0]['min_temp']
max_temp = tempData[0]['max_temp']
now_temp = DHT22.getNowTemp()
if now_temp > max_temp:
# 에어컨 켜기
os.system("irsend SEND_ONCE whisen UN-JEON/JEONG-JI_18")
elif now_temp < min_temp:
# 에어컨 끄기
os.system("irsend SEND_ONCE whisen UN-JEON/JEONG-JI_OFF")
time.sleep(60)
def temphum():
import pigpio
from time import sleep
import RPi.GPIO as GPIO
pi = pigpio.pi()
import DHT22
datapin = 4
s = DHT22.sensor(pi, datapin)
s.trigger()
sleep(2)
t = s.humidity()
h = s.temperature()
#read soil moisture sensor
GPIO.setmode(GPIO.BCM) # set up BCM GPIO numbering
GPIO.setup(18, GPIO.IN)
# this will carry on until you hit CTRL+C
if GPIO.input(18):
m = "Soil is DRY"
print("no water detected")
else:
print("water detected")
m = "Soil is WET"
#print(t,s)
print('Temp={0:0.1f}*C Humidity={1:0.1f}%'.format(t, h))
s.cancel
pi.stop()
return (t, h, m)
def DHT_Run(self): #온습도 확인
INTERVAL = 3
pi = pigpio.pi()
s = DHT22.sensor(pi, self.DHT_BCM)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
h = s.humidity()
t = s.temperature()
next_reading += INTERVAL
time.sleep(next_reading - time.time())
if h > -100 and t > -100:
break
#elif h == -999 and t == -999:
#print("DHT - 센서 핀 연결확인")
s.cancel()
pi.stop()
return s.humidity(), s.temperature()
#Info.py 테스트
#if __name__ == "__main__":
# I = Info(Observer)
# print(I.processRequest("INFO"))
# while True:
# print(I.Info_Lock)
# print(I.detectEnvironment())
def read(pin):
s = DHT22.sensor(pi, pin)
s.trigger()
sleep(1) # Necessary on faster Raspberry Pi's
print('humidity: {:3.2f}'.format(s.humidity() / 1.))
print('temperature: {:3.2f}'.format(s.temperature() / 1.))
s.cancel()
def DHT22_Thread_Function():
while True:
try:
DHT22.Probe_Humidity_Temperature()
time.sleep(2)
except:
State.ERROR_FLAG_3 = True
return
def __init__(self, root):
Frame.__init__(self, root)
self.pfr = pifacerelayplus.PiFaceRelayPlus(pifacerelayplus.RELAY)
self.pfr.init_board(
{
'value': 0,
'direction': 0,
'pullup': 0
},
{
'value': 0,
'direction': 0, # Makes all pins outputs outputs
'pullup': 0
})
root.protocol(
"WM_DELETE_WINDOW", self.on_closing
) # This will create a pop-up to confirm ending the program, and
# if there is confirmation it will call the on_closing method
# to tidy up before closing.
# Bench control, Tab 1, variables
self.lightOnImage = PhotoImage(file="icons/light-bulb.png")
self.fanImage = PhotoImage(file="icons/ac.png")
self.ironImage = PhotoImage(file="icons/iron-soldering.png")
self.gpioONImage = PhotoImage(file="icons/switch.png")
self.gpioOFFImage = PhotoImage(file="icons/switch-2.png")
self.hairdryerImage = PhotoImage(file="icons/hairdryer.png")
# Camera, Tab 2 variables
self.camera = picamera.PiCamera()
self.last_photo = None #declaring without defining.
self.isVideoRecording = FALSE
self.isTakingIntervalPhotos = FALSE
self.intervalStillButtonPressed = FALSE
self.intervalImageCounter = 0
self.photoInterval = 5 # interval in seconds.
self.directory_interval = None
self.file_name_interval = None
self.intervalCamera = PhotoImage(file="icons/multiple-shots.png")
self.videoCamera = PhotoImage(file="icons/video-camera.png")
self.add = PhotoImage(file="icons/add.png")
self.remove = PhotoImage(file="icons/minus.png")
self.stillCamera = PhotoImage(file="icons/photo-camera.png")
# Environment, Tab 3 variables
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, DHT_SENSOR_PIN)
self.clock = PhotoImage(file="icons/clock.png")
self.humidity = PhotoImage(file="icons/humidity.png")
self.thermometer = PhotoImage(file="icons/thermometer.png")
self.pack(fill=BOTH, expand=True)
self.root = root
self.root.title(PROGRAM_NAME)
self.initUI()
def measure(led, lcd):
try:
(hum, tem) = DHT22.measure()
if ((hum == 0) and (tem == 0)) or (hum > 100):
raise ValueError('Invalid data received from sensor')
lcd.write('\nHumidity: %s%%\n Temp: %sC\n\n' % (hum, tem))
led.off()
except Exception as e:
lcd.write(str(e) + '\n')
led.on()
def measure(led, lcd):
try:
(hum, tem) = DHT22.measure()
if ((hum == 0) and (tem == 0)) or (hum > 100):
raise ValueError('Invalid data received from sensor')
lcd.write('\nHumidity: %s%%\n Temp: %sC\n\n' % (hum, tem))
led.off()
except Exception as e:
lcd.write(str(e) + '\n')
led.on()
def main():
##-------------------------------------------------------------------------
## Parse Command Line Arguments
##-------------------------------------------------------------------------
## create a parser object for understanding command-line arguments
parser = argparse.ArgumentParser(description="Program description.")
## add flags
parser.add_argument("-v",
"--verbose",
action="store_true",
dest="verbose",
default=False,
help="Be verbose! (default = False)")
## add arguments
parser.add_argument("--input", type=str, dest="input", help="The input.")
args = parser.parse_args()
##-------------------------------------------------------------------------
## Create logger object
##-------------------------------------------------------------------------
logger = logging.getLogger('MyLogger')
logger.setLevel(logging.DEBUG)
## Set up console output
LogConsoleHandler = logging.StreamHandler()
if args.verbose:
LogConsoleHandler.setLevel(logging.DEBUG)
else:
LogConsoleHandler.setLevel(logging.INFO)
LogFormat = logging.Formatter('%(asctime)23s %(levelname)8s: %(message)s')
LogConsoleHandler.setFormatter(LogFormat)
logger.addHandler(LogConsoleHandler)
## Set up file output
# LogFileName = None
# LogFileHandler = logging.FileHandler(LogFileName)
# LogFileHandler.setLevel(logging.DEBUG)
# LogFileHandler.setFormatter(LogFormat)
# logger.addHandler(LogFileHandler)
# os.system('modprobe w1-gpio')
# os.system('modprobe w1-therm')
##-------------------------------------------------------------------------
## Read DS18B20 Temperature Sensors
##-------------------------------------------------------------------------
temps = DS18B20.read()
for temp in temps:
logger.info('Temperature (DS18B20) = {:.1f} F'.format(temp))
##-------------------------------------------------------------------------
## Read DHT22 Temperature and Humidity Sensor
##-------------------------------------------------------------------------
temp_DHT, humidity = DHT22.read()
logger.info('Temperature (DHT22) = {:.1f} F'.format(temp_DHT))
logger.info('Humidity (DHT22) = {:.0f} %'.format(humidity))
def main():
##-------------------------------------------------------------------------
## Parse Command Line Arguments
##-------------------------------------------------------------------------
## create a parser object for understanding command-line arguments
parser = argparse.ArgumentParser(
description="Program description.")
## add flags
parser.add_argument("-v", "--verbose",
action="store_true", dest="verbose",
default=False, help="Be verbose! (default = False)")
## add arguments
parser.add_argument("--input",
type=str, dest="input",
help="The input.")
args = parser.parse_args()
##-------------------------------------------------------------------------
## Create logger object
##-------------------------------------------------------------------------
logger = logging.getLogger('MyLogger')
logger.setLevel(logging.DEBUG)
## Set up console output
LogConsoleHandler = logging.StreamHandler()
if args.verbose:
LogConsoleHandler.setLevel(logging.DEBUG)
else:
LogConsoleHandler.setLevel(logging.INFO)
LogFormat = logging.Formatter('%(asctime)23s %(levelname)8s: %(message)s')
LogConsoleHandler.setFormatter(LogFormat)
logger.addHandler(LogConsoleHandler)
## Set up file output
# LogFileName = None
# LogFileHandler = logging.FileHandler(LogFileName)
# LogFileHandler.setLevel(logging.DEBUG)
# LogFileHandler.setFormatter(LogFormat)
# logger.addHandler(LogFileHandler)
# os.system('modprobe w1-gpio')
# os.system('modprobe w1-therm')
##-------------------------------------------------------------------------
## Read DS18B20 Temperature Sensors
##-------------------------------------------------------------------------
temps = DS18B20.read()
for temp in temps:
logger.info('Temperature (DS18B20) = {:.1f} F'.format(temp))
##-------------------------------------------------------------------------
## Read DHT22 Temperature and Humidity Sensor
##-------------------------------------------------------------------------
temp_DHT, humidity = DHT22.read()
logger.info('Temperature (DHT22) = {:.1f} F'.format(temp_DHT))
logger.info('Humidity (DHT22) = {:.0f} %'.format(humidity))
def getStats(self):
pi = pigpio.pi()
s = DHT22.sensor(pi, self.channel)
s.trigger()
sleep(.1)
stats = {}
stats['temperature'] = s.temperature()
stats['humidity'] = s.humidity()
s.cancel()
pi.stop()
return stats
def main():
sensor_handler = sensor.sensor()
FORMAT = '%(asctime)-15s %(message)s'
logging.basicConfig(filename=os.path.dirname(os.path.realpath(__file__)) +
'/dht22.log',
level=logging.DEBUG,
format=FORMAT)
logger = logging.getLogger('dht22')
print "DHT22 Sensor:"
readout = None
counter = 0
try:
pi = pigpio.pi()
except ValueError:
print "Failed to connect to PIGPIO (%s)"
logger.error('Failed to connect to PIGPIO (%s)', ValueError)
try:
sensor_data = DHT22.sensor(pi, 17)
except ValueError:
print "Failed to connect to DHT22"
logger.error('Failed to connect to DHT22 (%s)', ValueError)
while (readout == None and counter < 5):
counter += 1
# Get data from sensor
sensor_data.trigger()
time.sleep(0.2)
humidity = sensor_data.humidity()
temperature = sensor_data.temperature()
if humidity != None and temperature != None and humidity >= 0 and humidity <= 100:
readout = [humidity, temperature]
saveSQLite(readout)
sensor_handler.save_value(0, temperature)
sensor_handler.save_value(1, humidity)
print "Humidity: " + str(humidity)
print "Temperature: " + str(temperature)
counter = 10
else:
time.sleep(5)
def main():
logging.basicConfig(format="%(asctime)-15s %(message)s",
datefmt='%Y-%m-%d %H:%M:%S',
level=logging.INFO)
parser = argparse.ArgumentParser(description='Climate')
parser.add_argument('-i',
'--interval',
help='reporting interval in seconds')
parser.add_argument('-d',
'--display_only',
help='only display, no reporting',
action="store_true")
args = parser.parse_args()
if args.interval:
Registry.reporting_interval = int(args.interval)
display_only = args.display_only
# REST client.
aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
# Adafruit IO Feeds.
temperature_feed = aio.feeds('10-cfr-climate-2nd-floor.temperature')
humidity_feed = aio.feeds('10-cfr-climate-2nd-floor.humidity')
while True:
try:
temperature, humidity = DHT22.get()
temperature = f'{temperature:.1f}'
humidity = f'{humidity:.1f}'
if humidity is not None and temperature is not None:
if not display_only:
send_readings(aio, temperature, humidity, temperature_feed,
humidity_feed)
logging.info(
f'Temp={temperature}*C Humidity={humidity}% Send={not display_only}'
f' (next in {Registry.reporting_interval} secs)')
else:
logging.info(
f'Failed to get readings, trying again in {Registry.reporting_interval} seconds'
)
except Exception as ex:
logging.exception('Cannot send data')
# Avoid flooding Adafruit IO
time.sleep(Registry.reporting_interval)
def main():
sensor_handler = sensor.sensor();
FORMAT = '%(asctime)-15s %(message)s'
logging.basicConfig(filename=os.path.dirname(os.path.realpath(__file__)) + '/dht22.log', level=logging.DEBUG,
format=FORMAT)
logger = logging.getLogger('dht22')
print "DHT22 Sensor:"
readout = None
counter = 0
try:
pi = pigpio.pi()
except ValueError:
print "Failed to connect to PIGPIO (%s)"
logger.error('Failed to connect to PIGPIO (%s)', ValueError);
try:
sensor_data = DHT22.sensor(pi, 17)
except ValueError:
print "Failed to connect to DHT22"
logger.error('Failed to connect to DHT22 (%s)', ValueError);
while (readout == None and counter < 5):
counter += 1
# Get data from sensor
sensor_data.trigger()
time.sleep(0.2)
humidity = sensor_data.humidity()
temperature = sensor_data.temperature()
if humidity != None and temperature != None and humidity >= 0 and humidity <= 100:
readout = [humidity, temperature]
saveSQLite(readout)
sensor_handler.save_value(0, temperature)
sensor_handler.save_value(1, humidity)
print "Humidity: " + str(humidity)
print "Temperature: " + str(temperature)
counter = 10
else:
time.sleep(5)
def temp(): #code for temp/humidity
pi = pigpio.pi()
s = DHT22.sensor(pi, 4)
s.trigger()
sleep(2)
a = (s.humidity() / 1.)
b = (s.temperature() / 1.)
firstLabel = Label(leftFrame, text=a)
firstLabel.grid(row=1, column=0, padx=10, pady=2)
secondLabel = Label(leftFrame, text=b)
secondLabel.grid(row=2, column=0, padx=10, pady=2)
s.cancel()
pi.stop()
def __init__(self):
self.pi = pigpio.pi()
self.sampledata = DHT22.sensor(self.pi, 4)
print('start the sensor')
print('trigger')
#time.sleep(2)
self.sampledata.trigger()
time.sleep(2)
print('trigger')
self.sampledata.trigger()
self.current = time.time()
self.tempdata = '{:3.2f}'.format(self.sampledata.temperature() / 1.)
self.humidata = '{:3.2f}'.format(self.sampledata.humidity() /1.)
class DHT22_Temp(Sensor):
NAME = "Aussen-Temp"
UNIT = "°C"
REFRESH_TIME = 20
gpio = 6
dht22 = DHT22.sensor(pi, gpio)
@classmethod
def ReadSensorData(cls):
cls.dht22.trigger()
time.sleep(0.2)
return float("{0:0.1f}".format(cls.dht22.temperature()))
def __init__(self, root):
Frame.__init__(self, root)
self.pfr = pifacerelayplus.PiFaceRelayPlus(pifacerelayplus.RELAY)
self.pfr.init_board( { 'value': 0,
'direction': 0,
'pullup': 0},
{ 'value': 0,
'direction': 0, # Makes all pins outputs outputs
'pullup': 0})
root.protocol("WM_DELETE_WINDOW", self.on_closing) # This will create a pop-up to confirm ending the program, and
# if there is confirmation it will call the on_closing method
# to tidy up before closing.
# Bench control, Tab 1, variables
self.lightOnImage = PhotoImage(file="icons/light-bulb.png")
self.fanImage = PhotoImage(file="icons/ac.png")
self.ironImage = PhotoImage(file="icons/iron-soldering.png")
self.gpioONImage = PhotoImage(file="icons/switch.png")
self.gpioOFFImage = PhotoImage(file="icons/switch-2.png")
self.hairdryerImage = PhotoImage(file="icons/hairdryer.png")
# Camera, Tab 2 variables
self.camera = picamera.PiCamera()
self.last_photo = None #declaring without defining.
self.isVideoRecording = FALSE
self.isTakingIntervalPhotos = FALSE
self.intervalStillButtonPressed = FALSE
self.intervalImageCounter = 0
self.photoInterval = 5 # interval in seconds.
self.directory_interval = None
self.file_name_interval = None
self.intervalCamera = PhotoImage(file="icons/multiple-shots.png")
self.videoCamera = PhotoImage(file="icons/video-camera.png")
self.add = PhotoImage(file="icons/add.png")
self.remove = PhotoImage(file="icons/minus.png")
self.stillCamera = PhotoImage(file="icons/photo-camera.png")
# Environment, Tab 3 variables
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, DHT_SENSOR_PIN)
self.clock = PhotoImage(file="icons/clock.png")
self.humidity = PhotoImage(file="icons/humidity.png")
self.thermometer = PhotoImage(file="icons/thermometer.png")
self.pack(fill=BOTH,expand=True)
self.root = root
self.root.title(PROGRAM_NAME)
self.initUI()
def get_env_info():
import DHT22
import pigpio
from time import sleep
pi = pigpio.pi()
s = DHT22.sensor(pi, 3)
s.trigger()
sleep(.01)
ctemp = s.temperature()
print('Humidity Percentage: {:3.2f}'.format(s.humidity() / 1.))
print('Celcius Temp: {:3.2f}'.format(ctemp / 1.))
print('F Temp: {:3.2f}'.format(ctemp * 9 / 5 + 32 / 1.))
s.cancel()
pi.stop()
def main():
currTemperature = 0
currHumidity = 0
pi = pigpio.pi()
s = DHT22.sensor(pi, 4)
while True:
s.trigger()
time.sleep(0.2)
if s.temperature() != currTemperature:
pubMsg("babykeeper/temperature", s.temperature())
currTemperature = s.temperature()
if s.humidity() != currHumidity:
pubMsg("babykeeper/humidity", s.humidity())
currHumidity = s.humidity()
time.sleep(1) # Overall INTERVAL second polling.
s.cancel()
pi.stop()
def main():
currTemperature = 0
currHumidity = 0
pi = pigpio.pi()
s = DHT22.sensor(pi, 4)
while True:
s.trigger()
time.sleep(0.2)
if s.temperature() != currTemperature:
pubMsg("babykeeper/temperature", s.temperature())
currTemperature = s.temperature()
if s.humidity() != currHumidity:
pubMsg("babykeeper/humidity", s.humidity())
currHumidity = s.humidity()
time.sleep(1) # Overall INTERVAL second polling.
s.cancel()
pi.stop()
def Measure(self):
__temperatures = []
__humidities = []
for sensor in self.__sensors:
__container = DHT22.sensor(pi, sensor)
__container.trigger()
sleep(.1)
if __container.temperature() is not None and __container.humidity(
) is not None:
if __container.temperature() < 0 or __container.humidity() < 0:
__temperatures.append(0)
__humidities.append(0)
else:
__temperatures.append(__container.temperature())
__humidities.append(__container.humidity())
return __temperatures, __humidities
def Main():
currTemperature=0
currHumidity=0
#os.system("sudo pigpio")
#subprocess.call(['sudo','pigpiod'],shell=True)
# Intervals of about 2 seconds or less will eventually hang the DHT22.
#INTERVAL=3
pi = pigpio.pi()
s = DHT22.sensor(pi, 4)
pubIp()
curr=getAddress()
while True:
s.trigger()
time.sleep(0.2)
'''
print("{} {} {}".format(
r, s.humidity(), s.temperature()))
'''
if curr != getAddress():
pub()
curr=getAddress()
pubChangedTemperature()
pubChangedHumidity()
time.sleep(1) # Overall INTERVAL second polling.
s.cancel()
pi.stop()
def get_cur_temp_and_hum(sensor):
# this connects to the pigpio daemon which must be started first
retval = {'temperature': -999, 'humidity': -999}
pi = pigpio.pi()
# Pigpio DHT22 module should be in same folder as your program
s = DHT22.sensor(pi, sensor)
i = 0
while ((i < 6) and (int(retval['temperature']) <= -999)):
i += 1
s.trigger()
sleep(.05) # Necessary on faster Raspberry Pi's
retval['humidity'] = round(s.humidity(), 1)
retval['temperature'] = round(s.temperature(), 1)
'''print("{} {} {:3.2f} {} {} {} {}".format(
s.humidity(), s.temperature(), s.staleness(),
s.bad_checksum(), s.short_message(), s.missing_message(),
s.sensor_resets()))'''
s.cancel()
pi.stop()
return retval
def temphum(user, datapin):
try:
last_measure = Humidity_temp.query.order_by(
Humidity_temp.timestamp.desc()).first()
except:
last_measure = None
if last_measure == None or datetime.utcnow().timestamp(
) - last_measure.timestamp >= user.humidity_temp_i * 60:
pi = pigpio.pi()
s = DHT22.sensor(pi, datapin)
s.trigger()
sleep(2)
h = s.humidity()
t = s.temperature()
s.cancel()
sleep(0.2)
pi.stop()
measure = Humidity_temp(humidity=h,
temp=t,
timestamp=datetime.utcnow().timestamp())
db.session.add(measure)
db.session.commit()
def read_Current_Tempature():
"Reads the current Tempature"
global Current_Temp
pi = pigpio.pi()
sensor = DHT22.sensor(pi, 4, LED=16, power=8)
myWrite = WriteTempData.WriteTemp()
while True:
sleep(0.2)
sensor.trigger()
faren = sensor.temperature()
faren = CtoF.C_to_F(faren)
Current_Temp = faren
print("Current Temp:", faren)
display_CT.set('{:.4}'.format(float(faren)))
myHum = sensor.humidity()
print("Humidity is:", myHum)
display_Hum.set('{:.4}'.format(float(myHum)))
myWrite.write(str(Current_Temp), str(myHum))
sleep(3)
sensor.cancel()
pi.stop()
def measureTempHum(self):
import DHT22
import pigpio
import os
os.system('sudo pigpiod')
pi = pigpio.pi()
s = DHT22.sensor(pi, self.echoGPIO)
s.trigger()
time.sleep(0.03)
hum = s.humidity()/1.0
temp = s.temperature() / 1.0
print 'humdity is {0}'.format(hum)
print 'temperature is {0}'.format(temp)
if hum > 30 or temp > 30:
print 'turning on AC'
self.unsetSignal()
time.sleep(5)
else:
print 'turning off AC'
self.setSignal()
time.sleep(5)
s.cancel()
time.sleep(0.5)
pi.stop()
ch0 = data[1] * 256 + data[0]
ch1 = data1[1] * 256 + data1[0]
"""
DHT22 code
"""
import pigpio
import DHT22
import time
##import datetime
##from time import sleep
##import RPi.GPIO as GPIO
## must run sudo pigpiod from cmd prompt prior to running this script after
## every restart of PI.
pi = pigpio.pi() ## Initiate GPIO for pigpio.
dht22 = DHT22.sensor(pi, 17) ## use the actual GPIO pin name/number
dht22.trigger() ## forces a reading. first reading is just junk.
sleepTime = 3 ## must sleep at least 3 second to stop sensor hangs.
def readDHT22():
dht22.trigger()
humidity = " %.2f" % (dht22.humidity())
temp = " %.2f" % (dht22.temperature())
return (humidity, temp)
def Temp_Tol():
temperature = int(temperature)
if temperature + "%" > int(27.00):
print("\n\n Temperature too High")
else:
print(" ")
OAUTH_TOKEN_SECRET='YtDYC2ztRVwCmVJ1mUT5liBjE6dHibnE8CWwlI9kjH9US'
twitter = Twython(APP_KEY,APP_SECRET,OAUTH_TOKEN,OAUTH_TOKEN_SECRET)
#DB Connection
dbserver = "localhost"
dbuser = "******"
dbpw = "22murraysbrae!"
dbname = "weather"
dbtable = "data"
conn = MySQLdb.connect(host = dbserver,user = dbuser,passwd = dbpw,db = dbname)
x = conn.cursor()
#Setup Temp & Humidity Sensor (DHT22)
pi = pigpio.pi()
dht22 = DHT22.sensor(pi,12) #sensor on GPIO pin 12
dht22.trigger()
sleepTime = 3
#Define Function to trigger DHT22
def ReadDHT22():
print ("Reading DHT22")
#Get new Reading
dht22.trigger()
#Save values
dht_humidity = '%.2f' % (dht22.humidity())
dht_temperature = '%.2f' % (dht22.temperature())
return (dht_humidity,dht_temperature)
#Setup Temp & Pressure sensor (BMP085)
bmp_sensor = BMP085.BMP085()
astro_logger.exception(ex) # Log exception info and continue…
return
csv_fields = ["meas_time", "temp", "hum", "watertemp", "CO2", "light"]
measurement_interval = 60
while True:
t_start = datetime.datetime.now()
params = {}
# for all sensors try to read them, if not make sure the script
# does not block and fill None in file
params["meas_time"] = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
try:
h, t = DHT22.readSensor()
#t, p, h = bme280.readBME280All() #use this for bme280 and outcomment line above
params["hum"] = h
params["temp"] = t
except Exception as ex:
astro_logger.exception(ex) # Log exception info and continue…
pass
try:
wt = waterTemp.read_temp()
params["watertemp"] = wt
except Exception as ex:
astro_logger.exception(ex) # Log exception info and continue…
pass
try:
def read_sensor():
temp, humidity = DHT22.read_sensor(SENSOR_PIN, 'F')
return "%s,device=%s fahrenheit=%.1f,humidity=%.1f" % (
measurement, client_id, temp, humidity)
logFileName = ("/home/pi/lake_status/GetConditions.log")
logging.basicConfig(filename=logFileName, level=loglevel,
format='%(asctime)s %(levelname)s %(message)s')
logging.debug("logger started")
start_time = time.time()
parser = optparse.OptionParser(formatter=optparse.TitledHelpFormatter(), usage=globals()['__doc__'], version='$Id$')
parser.add_option ('-p', '--pythonanywhere', action='store_true', help='sends data to pythonanywhere database')
parser.add_option ('-c', '--carriots', action='store_true', help='sends data to carriots')
(options, args) = parser.parse_args()
#get the data from the sensor (pigpiod must be running with root permission)
logging.debug('trying to get data from dht22')
try:
pi = pigpio.pi()
dht22 = DHT22.sensor(pi, 4, None, 24)
#trigger the event, gather the data
dht22.trigger()
#check to see if data is relevant, first reading is generally bad, -999 is not right...
count = 0
while dht22.temperature() > 150 or dht22.temperature() < -20:
count = count + 1
#wait 3 seconds and try again.
logging.debug('bad data from sensor, count : %10o' % count)
time.sleep(3)
dht22.trigger()
#error occurred, twenty queries to sensor (1min) and no data.
if count > 20:
logging.error("Sensor didn't return any data. Exiting.")
sys.exit(2)
import time import Adafruit_ADS1x15 import Adafruit_DHT import sys import paho.mqtt.client as paho import board import neopixel import DHT22 import pigpio import os #imports OS library for Shutdown control # Temperature & humidity Sensors pi = pigpio.pi() sensorIndoor = DHT22.sensor(pi, 23) sensorOutdoor = DHT22.sensor(pi, 24) # Relais GPIO.setwarnings(False) GPIO.setmode(GPIO.BCM) # GPIO Nummern statt Board Nummern RELAIS_MAIN_GPIO = 12 RELAIS_1_GPIO = 7 GPIO.setup(RELAIS_MAIN_GPIO, GPIO.OUT) GPIO.setup(RELAIS_1_GPIO, GPIO.OUT) status_fridge = "off" status_mains = "off" # Counters messageCounter = 0 lowVoltageCounter = 0
self.cb = None
if __name__ == "__main__":
import time
import pigpio
import DHT22
# Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL=3
pi = pigpio.pi()
s = DHT22.sensor(pi, 4, LED=16, power=8)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
print("{} {} {} {:3.2f} {} {} {} {}".format(
r, s.humidity(), s.temperature(), s.staleness(),
import DHT22
import pyb
def measure(led, lcd):
try:
(hum, tem) = DHT22.measure()
if ((hum == 0) and (tem == 0)) or (hum > 100):
raise ValueError('Invalid data received from sensor')
lcd.write('\nHumidity: %s%%\n Temp: %sC\n\n' % (hum, tem))
led.off()
except Exception as e:
lcd.write(str(e) + '\n')
led.on()
DHT22.init()
lcd = pyb.LCD('X')
lcd.light(True)
led_red = pyb.LED(1) # 1 = Red
while True:
measure(led_red, lcd)
pyb.delay(3000)
def readDHT22():
DHT22.triger()
temperature = '%.2f' % (DHT22.temperature())
return temperature
def getHumidity:
HT22.triger()
humidity = '%.2f' % (DHT22.hymidity())
return humidity
from time import sleep
try:
if(not os.path.isfile('/var/run/pigpio.pid')):
os.system("sudo pigpiod")
print("PIGPIO: the deamon is launched")
sleep(3)
else:
print("PIGPIO: the deamon was already launched")
except Exception: pass
# Initiate GPIO for pigpio
pi = pigpio.pi()
# Setup the sensor
dht22 = DHT22.sensor(pi, 4) # use the actual GPIO pin name
dht22.trigger()
# We want our sleep time to be above 2 seconds.
sleepTime = 3
def get_dht22_values():
# Wait few seconds before getting values
sleep(sleepTime)
# Get a new reading
dht22.trigger()
# Save our values
humidity = '%.2f' % (dht22.humidity())
temp = '%.2f' % (dht22.temperature())
import pigpio import DHT22 from datetime import date import json from time import sleep import time pi = pigpio.pi() sleeptime = 3 maxtries = 3 #Set up sensor dht22 = DHT22.sensor(pi, 27) fileName = 'history.json' def readDHT(): #Get new reading dht22.trigger() #Return results as tuple return (dht22.humidity(), dht22.temperature()) #Get a good reading, the first one can be a write off (typically -999) def getReading(): counter = 0 #We cant go forever, so we give it maxtries tries before printing error humidity, temperature = readDHT() while(temperature < - 30 or temperature > 50):
s = air_quality.sensor(pi, 7) # set the GPIO pin number time.sleep(30) # Use 30s for a properly calibrated reading. g, r, c = s.read() # get the gpio, ratio and concentration in particles / 0.01 ft3 concentration_ugm3 = s.pcs_to_ugm3(c) # convert to SI units aqi = s.ugm3_to_aqi(concentration_ugm3) # convert SI units to US AQI (instantaneous only) return aqi if __name__ == "__main__": ''' Main program - reads all sensors and sends readings to thingspeak ''' pi = pigpio.pi() # Humidity and temp from DHT22 (outisde) s = DHT22.sensor(pi, PIN_DHT22, LED=None, power=8) s.trigger() time.sleep(0.2) humidity = s.humidity() temp1 = s.temperature() # Humidity and temp from DHT22 (inside) #si = DHT22.sensor(pi, PIN_DHT22i, LED=None, power=8) #si.trigger() #time.sleep(0.2) #humidityi = si.humidity() # temp and pressure from BMP085 temp2 = BMP085sensor.read_temperature() pressure = BMP085sensor.read_pressure()
observation = owm.weather_at_place('Ghaziabad,India')
w = observation.get_weather()
h = w.get_humidity()
t = w.get_temperature('celsius')
data = {}
data['et'] = t['temp']
data['eh'] = h
data['etmin'] = t['temp_min']
data['etmax'] = t['temp_max']
### get weather data from sensor ###
pi = pigpio.pi()
s = DHT22.sensor(pi, 4, 27)
s.trigger()
time.sleep(0.2)
data['it'] = s.temperature()
data['ih'] = s.humidity()
s.cancel()
pi.stop()
### index data ###
data['dt'] = strftime("%Y-%m-%dT%H:%M:%SZ", gmtime())
json_data = json.dumps(data)
print("{}".format(json_data))
#---------------------------------------------------------------------------
# SET UP SENSOR VARIABLES
#---------------------------------------------------------------------------
sensor_value = {x: 'U' for x in s.SENSOR_SET}
sensor_settings = collections.namedtuple('sensor_settings',
'enable ref unit min max type')
sensor = {k: sensor_settings(*s.SENSOR_SET[k]) for k in s.SENSOR_SET}
#-------------------------------------------------------------------
# Get inside temperature and humidity
#-------------------------------------------------------------------
if sensor['inside_temp'].enable or sensor['inside_hum'].enable:
try:
DHT22_sensor = DHT22.sensor(pi, sensor['inside_temp'].ref)
DHT22_sensor.trigger()
time.sleep(0.2) #Do not over poll DHT22
DHT22_sensor.cancel()
if sensor['inside_temp'].enable:
sensor_value['inside_temp'] = DHT22_sensor.temperature()
if sensor['inside_hum'].enable:
sensor_value['inside_hum'] = DHT22_sensor.humidity()
logger.info('Reading value from DHT22 sensor... OK')
except ValueError:
logger.warning('Failed to read DHT22 ({value_error})'.format(
value_error=ValueError))
argNames = ['filename', 'temperature']
args = dict(zip(argNames, sys.argv))
# setting some default values, Pin # using BGM
sensorPin = 19
sensorVoltagePin = 26
targetOutputPin = 12 # this is the pin giving signal to relay -> fan motor
sleepTime = 3
targetTemperature = int(args['temperature']) # getting the input from argv
pi = pigpio.pi()
# turn on the sensor
pi.set_mode(sensorVoltagePin, pigpio.OUTPUT)
pi.write(sensorVoltagePin, True)
# setup the DHT22 sensor pin
dht22 = DHT22.sensor(pi, sensorPin)
# setup the relay -> fan motor output pin
pi.set_mode(targetOutputPin, pigpio.OUTPUT)
# defined how to read the DHT22
def readDHT22():
dht22.trigger()
humidity = '%.2f' % (dht22.humidity())
temp = '%.2f' % (dht22.temperature())
return (float(humidity), float(temp))
# the core program run
try:
print("[Please use Ctrl + C to termate the program]\n")
print("Program Start...")
print("When the temperature is HIGHER then " + str(targetTemperature) + ". The relay -> fan motor will turn on!\n")
CONTINUOUS_HIGH_RES_MODE_2 = 0x11
ONE_TIME_HIGH_RES_MODE_1 = 0x20
ONE_TIME_HIGH_RES_MODE_2 = 0x21
ONE_TIME_LOW_RES_MODE = 0x23
bus = smbus.SMBus(1)
relay_pin1 = 23
relay_pin2 = 24
relay_pin3 = 25
temp_pin = 22
motion_pin = 18
# Initiate GPIO for pigpio
pi = pigpio.pi()
# Setup the sensor
dht22 = DHT22.sensor(pi,temp_pin) # use the actual GPIO pin name
dht22.trigger()
# We want our sleep time to be above 3 seconds.
sleepTime = 3
GPIO.setmode(GPIO.BCM)
GPIO.setup(relay_pin1,GPIO.OUT)
GPIO.setup(relay_pin2,GPIO.OUT)
GPIO.setup(relay_pin3,GPIO.OUT)
GPIO.setup(motion_pin, GPIO.IN)
presence = GPIO.input(motion_pin)
def readDHT22():
# Get a new reading
if __name__ == "__main__":
import time
import pigpio
import DHT22
# Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL = 5
pi = pigpio.pi()
s = DHT22.sensor(pi, 4, LED=16, power=8)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
print("{} {} {} {:3.2f} {} {} {} {}".format(
r, s.humidity(),
# main.py -- put your code here!
import pyb
import DHT22
# Turn blue LED on
blueled=pyb.LED(4)
blueled.on()
DHT22.init()
(hum, tem) = DHT22.measure()
while True:
print("humidite : " + str(hum) + " temperature : " + (str(tem)))
pyb.delay(3000)
if __name__ == "__main__":
import time
import pigpio
import DHT22
# Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL=3
pi = pigpio.pi()
# s = DHT22.sensor(pi, 22, LED=16, power=8)
s = DHT22.sensor(pi, 17)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
print("{} humidity: {} temp(C): {} temp(F): {} {:3.2f} {} {} {} {}".format(
r, s.humidity(), s.temperature(), s.temperature()*9/5+32, s.staleness(),
def __init__(self, root):
Frame.__init__(self, root)
# The following works with the Piface Relay+
'''
self.pfr = pifacerelayplus.PiFaceRelayPlus(pifacerelayplus.RELAY)
self.pfr.init_board( { 'value': 0,
'direction': 0,
'pullup': 0},
{ 'value': 0,
'direction': 0, # Makes all pins outputs outputs
'pullup': 0})
'''
root.protocol("WM_DELETE_WINDOW", self.on_closing) # This will create a pop-up to confirm ending the program, and
# if there is confirmation it will call the on_closing method
# to tidy up before closing.
# Bench control, Tab 1, variables
self.lightOnImage = PhotoImage(file="icons/light-bulb.png")
self.fanImage = PhotoImage(file="icons/ac.png")
self.ironImage = PhotoImage(file="icons/iron-soldering.png")
self.gpioONImage = PhotoImage(file="icons/switch.png")
self.gpioOFFImage = PhotoImage(file="icons/switch-2.png")
self.hairdryerImage = PhotoImage(file="icons/hairdryer.png")
# Camera, Tab 2 variables
# Don't enable the camera if an actual camera is not connected to the RPi
self.camera = picamera.PiCamera()
self.last_photo = None #declaring without defining.
self.isVideoRecording = FALSE
self.isTakingIntervalPhotos = FALSE
self.intervalStillButtonPressed = FALSE
self.intervalImageCounter = 0
self.photoInterval = 5 # interval in seconds.
self.directory_interval = None
self.file_name_interval = None
self.intervalCamera = PhotoImage(file="icons/multiple-shots.png")
self.videoCamera = PhotoImage(file="icons/video-camera.png")
self.add = PhotoImage(file="icons/add.png")
self.remove = PhotoImage(file="icons/minus.png")
self.stillCamera = PhotoImage(file="icons/photo-camera.png")
# Environment, Tab 3 variables
self.pi = pigpio.pi()
# Don't setup the DHT sensor unless a sensor is actually connected
self.sensor = DHT22.sensor(self.pi, DHT_SENSOR_PIN)
self.clock = PhotoImage(file="icons/clock.png")
self.humidity = PhotoImage(file="icons/humidity.png")
self.thermometer = PhotoImage(file="icons/thermometer.png")
# Setup relay GPIOS
self.fan_gpio = 22 # On the relay board
self.lights_gpio = 6 # On the relay board
self.solder_iron_gpio = 10 # External relay
self.hot_air_gpio = 9 # External relay
self.pi.set_mode(self.hot_air_gpio,pigpio.OUTPUT) # Make output
self.pi.set_mode(self.solder_iron_gpio,pigpio.OUTPUT) # Make output
self.pi.set_mode(self.fan_gpio,pigpio.OUTPUT) # Make output
self.pi.set_mode(self.lights_gpio,pigpio.OUTPUT) # Make output
self.pi.write(self.hot_air_gpio,0) # Set to LOW
self.pi.write(self.solder_iron_gpio,0) # Set to LOW
self.pi.write(self.fan_gpio,0) # Set to LOW
self.pi.write(self.lights_gpio,0) # Set to LOW
self.pack(fill=BOTH,expand=True)
self.root = root
self.root.title(PROGRAM_NAME)
self.initUI()
tls_version=ssl.PROTOCOL_TLSv1_2)
mqtt_client.connect('Pittsburgh.local', port=8883, keepalive=60)
mqtt_client.loop_start()
import time
import pigpio
import DHT22
# Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL = 3
pi = pigpio.pi()
s = DHT22.sensor(pi, 17)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
payload = "{} {} {} {:3.2f} {} {} {} {}".format(
r, s.humidity(), s.temperature(), s.staleness(), s.bad_checksum(),
# usr/bin python3
import pigpio
import time
pi = pigpio.pi()
import DHT22
## s = DHT22.sensor(pi, 17) #works with out led blinking
s = DHT22.sensor(pi, 17, 27) # works and blinks led
s.trigger()
fo = open("/home/pi/temp_log.txt", "w")
count = 0
while (count < 30000):
time.sleep(60)
s.trigger()
localtime = time.asctime( time.localtime(time.time()) )
#print("Time : {0}".format(localtime))
fo.writelines("Time : {0}".format(localtime));
fo.writelines(' Humidity : {0:3.2f}'.format(s.humidity() / 1.));
#print('Humidity : {:3.2f}'.format(s.humidity() / 1.))
#print('Temp : {:3.2f}'.format((s.temperature() * 1.8) +32))
fo.writelines(' Temp : {0:3.2f}\n'.format((s.temperature() * 1.8) +32));
count = count + 1
fo.close()
s.cancel()
pi.stop()
import sys
# Specify the path where you downloaded the pigpio DHT22.py module
sys.path.append('/home/pi/progs')
import pigpio
# this connects to the pigpio daemon which must be started first
pi = pigpio.pi()
import DHT22
s = DHT22.sensor(pi, 4)
s.trigger()
print('{:3.2f}'.format(s.humidity() / 1.))
print('{:3.2f}'.format(s.temperature() / 1.))
s.cancel()
pi.stop()
def __init__(self, pi, gpio, LED=None, power=None):
"""
Instantiate with the Pi and gpio to which the DHT22 output
pin is connected.
Optionally a LED may be specified. This will be blinked for
each successful reading.
Optionally a gpio used to power the sensor may be specified.
This gpio will be set high to power the sensor. If the sensor
locks it will be power cycled to restart the readings.
Taking readings more often than about once every two seconds will
eventually cause the DHT22 to hang. A 3 second interval seems OK.
"""
self.pi = pi
self.gpio = gpio
self.LED = LED
self.power = power
if power is not None:
pi.write(power, 1) # Switch sensor on.
time.sleep(2)
self.powered = True
self.cb = None
atexit.register(self.cancel)
self.bad_CS = 0 # Bad checksum count.
self.bad_SM = 0 # Short message count.
self.bad_MM = 0 # Missing message count.
self.bad_SR = 0 # Sensor reset count.
# Power cycle if timeout > MAX_TIMEOUTS.
self.no_response = 0
self.MAX_NO_RESPONSE = 2
self.rhum = -999
self.temp = -999
self.tov = None
self.high_tick = 0
self.bit = 40
print(("test"))
pi.set_pull_up_down(gpio, pigpio.PUD_OFF)
pi.set_watchdog(gpio, 0) # Kill any watchdogs.
self.cb = pi.callback(gpio, pigpio.EITHER_EDGE, self._cb)
def _cb(self, gpio, level, tick):
"""
Accumulate the 40 data bits. Format into 5 bytes, humidity high,
humidity low, temperature high, temperature low, checksum.
"""
diff = pigpio.tickDiff(self.high_tick, tick)
if level == 0:
# Edge length determines if bit is 1 or 0.
if diff >= 50:
val = 1
if diff >= 200: # Bad bit?
self.CS = 256 # Force bad checksum.
else:
val = 0
if self.bit >= 40: # Message complete.
self.bit = 40
elif self.bit >= 32: # In checksum byte.
self.CS = (self.CS << 1) + val
if self.bit == 39:
# 40th bit received.
self.pi.set_watchdog(self.gpio, 0)
self.no_response = 0
total = self.hH + self.hL + self.tH + self.tL
if (total & 255) == self.CS: # Is checksum ok?
self.rhum = ((self.hH << 8) + self.hL) * 0.1
if self.tH & 128: # Negative temperature.
mult = -0.1
self.tH = self.tH & 127
else:
mult = 0.1
self.temp = ((self.tH << 8) + self.tL) * mult
self.tov = time.time()
if self.LED is not None:
self.pi.write(self.LED, 0)
else:
self.bad_CS += 1
elif self.bit >= 24: # in temp low byte
self.tL = (self.tL << 1) + val
elif self.bit >= 16: # in temp high byte
self.tH = (self.tH << 1) + val
elif self.bit >= 8: # in humidity low byte
self.hL = (self.hL << 1) + val
elif self.bit >= 0: # in humidity high byte
self.hH = (self.hH << 1) + val
else: # header bits
pass
self.bit += 1
elif level == 1:
self.high_tick = tick
if diff > 250000:
self.bit = -2
self.hH = 0
self.hL = 0
self.tH = 0
self.tL = 0
self.CS = 0
else: # level == pigpio.TIMEOUT:
self.pi.set_watchdog(self.gpio, 0)
if self.bit < 8: # Too few data bits received.
self.bad_MM += 1 # Bump missing message count.
self.no_response += 1
if self.no_response > self.MAX_NO_RESPONSE:
self.no_response = 0
self.bad_SR += 1 # Bump sensor reset count.
if self.power is not None:
self.powered = False
self.pi.write(self.power, 0)
time.sleep(2)
self.pi.write(self.power, 1)
time.sleep(2)
self.powered = True
elif self.bit < 39: # Short message receieved.
self.bad_SM += 1 # Bump short message count.
self.no_response = 0
else: # Full message received.
self.no_response = 0
print(("test2"))
def temperature(self):
"""Return current temperature."""
return self.temp
def humidity(self):
"""Return current relative humidity."""
return self.rhum
def staleness(self):
"""Return time since measurement made."""
if self.tov is not None:
return time.time() - self.tov
else:
return - 999
def bad_checksum(self):
"""Return count of messages received with bad checksums."""
return self.bad_CS
def short_message(self):
"""Return count of short messages."""
return self.bad_SM
def missing_message(self):
"""Return count of missing messages."""
return self.bad_MM
def sensor_resets(self):
"""Return count of power cycles because of sensor hangs."""
return self.bad_SR
def trigger(self):
"""Trigger a new relative humidity and temperature reading."""
if self.powered:
if self.LED is not None:
self.pi.write(self.LED, 1)
self.pi.write(self.gpio, pigpio.LOW)
time.sleep(0.017) # 17 ms
self.pi.set_mode(self.gpio, pigpio.INPUT)
self.pi.set_watchdog(self.gpio, 200)
def cancel(self):
"""Cancel the DHT22 sensor."""
self.pi.set_watchdog(self.gpio, 0)
if self.cb is not None:
self.cb.cancel()
self.cb = None
if __name__ == "__main__":
print(("test3"))
import time
import pigpio
import DHT22
## Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL = 3
pi = pigpio.pi()
s = DHT22.sensor(pi, 17, LED=27, power=8)
r = 0
##print((r))
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
print(("{} {} {} {:3.2f} {} {} {} {}".format(
r, s.humidity(), s.temperature(), s.staleness(),
s.bad_checksum(), s.short_message(), s.missing_message(),
s.sensor_resets())))
next_reading += INTERVAL
time.sleep(next_reading - time.time()) # Overall INTERVAL second polling.
s.cancel()
pi.stop()
def __init__(self, *a, **kw):
DeviceType.__init__(self, *a, **kw)
import DHT22
self.sens = DHT22.sensor(self.pi, self.pinNumber)
self.recentLowTemp = (0, None) # time, temp
self.recentPeriodSec = 30
self.cb = None
if __name__ == "__main__":
import time
import pigpio
import DHT22
# Intervals of about 2 seconds or less will eventually hang the DHT22.
INTERVAL=3
pi = pigpio.pi()
s = DHT22.sensor(pi, 22)
r = 0
next_reading = time.time()
while True:
r += 1
s.trigger()
time.sleep(0.2)
print("{} {} {} {:3.2f} {} {} {} {}".format(
r, s.humidity(), s.temperature(), s.staleness(),
import pigpio
import DHT22
from time import sleep
pi = pigpio.pi()
dht22 = DHT22.sensor(pi, 4)
dht22.trigger()
sleepTime = 3
def readDHT22():
dht22.trigger()
humidity = '%.2f' % (dht22.humidity())
temp = '%.2f' % (dht22.temperature())
return (humidity, temp)
while True:
humidity, temperature = readDHT22()
print("Humidity is :" + humidity + "%")
print("Temperature is :" + temperature + "C")
sleep(sleepTime)
#!/usr/local/bin/python
import RPi.GPIO as GPIO
import urllib2
import urllib
import time
import pigpio
import DHT22
pi = pigpio.pi()
#dth22 sensor definition
dht22 = DHT22.sensor(pi, 16)
dht22.trigger()
GPIO.setmode(GPIO.BOARD)
#define the pin that goes to the circuit
pin_to_circuit = 7
def rc_time (pin_to_circuit):
count = 0
#Output on the pin for
GPIO.setup(pin_to_circuit, GPIO.OUT)
GPIO.output(pin_to_circuit, GPIO.LOW)
time.sleep(0.1)
#Change the pin back to input
GPIO.setup(pin_to_circuit, GPIO.IN)
