def get_temp_humid(arg1,
stop_event): #function for reading the DHT22, to be put in
#thread to continuously run without interference
#aio = Client('afe0b443290e43eaa49f6f7b55841bed') #adafruit io key
#sensor = Adafruit_DHT.DHT22
print "in thread"
GPIO.setup(temp_humid, GPIO.IN)
print "past gpio setup in thread"
#temperature = 0
#humidity = 0
thresh_up = 26 #degrees celsius
above_thresh = 0
#initial temp reading
humidity, temperature = Adafruit_DHT.read_retry(sensor, temp_humid)
send_data(temperature, humidity, not GPIO.input(pow_on_rise))
#****add threshold logic here****
#loop temp readings and aio sends
st_time = time.time()
while (not stop_event.is_set()):
end_time = time.time()
#if ten minutes has passed
if (ten_min(st_time, end_time) == True):
#print "time elapsed-----------------"
humidity, temperature = Adafruit_DHT.read_retry(sensor, temp_humid)
send_data(temperature, humidity, not GPIO.input(pow_on_rise))
print temperature
if temperature > thresh_up:
if above_thresh == 0:
send_alert("Temperature Has Raised Above Threshold\n")
above_thresh = 1
GPIO.output(led_temp_stat, GPIO.LOW)
else:
if above_thresh == 1:
send_alert("Temperature Has Returned Below Threshold\n")
above_thresh = 0
GPIO.output(led_temp_stat, GPIO.HIGH)
st_time = end_time #reset time interval
if not alert_queue.empty() and (
inet_check.check_connection('www.adafruit.io') == True):
aio.send('History', alert_queue.get())
time.sleep(3) #throttle output
else:
pass
#print "alert queue empty"
if not data_queue.empty() and (
inet_check.check_connection('www.adafruit.io') == True):
aio.send('History', data_queue.get())
time.sleep(3) #throttle output
else:
pass
def send_alert(string):
global alert_queue
alert_str = time.strftime("%m/%d/%Y %H:%M:%S ") + string
if (inet_check.check_connection('www.adafruit.io') == True):
aio.send('Alerts', alert_str)
print "Sent Alert"
GPIO.output(led_inet, GPIO.HIGH)
else:
alert_queue.put(alert_str)
print "pushed alert onto queue"
GPIO.output(led_inet, GPIO.LOW)
return
def send_data(temp, humid, bat_on):
global data_queue
if (inet_check.check_connection('www.adafruit.io') == True):
aio.send('Temperature', temp)
aio.send('Humidity', humid)
print "Sent Data"
GPIO.output(led_inet, GPIO.HIGH)
else:
data_str = time.strftime("%m/%d/%Y %H:%M:%S") + " Temp=" + str(
temp) + " Humid=" + str(humid) + " Bat_Active=" + str(
bat_on) + '\n'
data_queue.put(data_str)
print "**BAT_ON =" + str(bat_on) + "**"
print "pushed data onto queue"
GPIO.output(led_inet, GPIO.LOW)
return
def test_adafruitio(self):
self.assertTrue(inet_check.check_connection("www.adafruit.io"))
def test_yahoo(self):
self.assertTrue(inet_check.check_connection("www.yahoo.com"))
def test_google(self):
self.assertTrue(inet_check.check_connection("www.google.com"))