def __init__(self, public_key, private_key, stream_data=True, show_on_lcd=True):
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, GPIO_PIN)
self.last_temperature = 0
self.last_humidity = 0
self.base_url = 'https://data.sparkfun.com/input/'
self.url = self.base_url + public_key + "?private_key=" + private_key
self.stream_data = stream_data
self.show_on_lcd = show_on_lcd
self.lcd_display_manager = LCDDisplayManager()
def __init__(self, public_key, private_key, stream_data=True, show_on_lcd=True):
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, GPIO_PIN)
self.last_temperature = 0
self.last_humidity = 0
self.base_url = "https://data.sparkfun.com/input/"
self.url = self.base_url + public_key + "?private_key=" + private_key
self.stream_data = stream_data
self.show_on_lcd = show_on_lcd
self.lcd_display_manager = LCDDisplayManager()
class DataStreamer:
def __init__(self, public_key, private_key, stream_data=True, show_on_lcd=True):
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, GPIO_PIN)
self.last_temperature = 0
self.last_humidity = 0
self.base_url = "https://data.sparkfun.com/input/"
self.url = self.base_url + public_key + "?private_key=" + private_key
self.stream_data = stream_data
self.show_on_lcd = show_on_lcd
self.lcd_display_manager = LCDDisplayManager()
def run(self):
queued_data = []
while True:
if len(queued_data) > 0:
print("Has to resend %s packages" % len(queued_data))
temp_queued_data = []
while len(queued_data) > 0:
data = queued_data.pop() # the ones the longest in the list are the oldest ones
if not self.do_stream_data(data): # if not successful, queue it again
temp_queued_data.append(data)
time.sleep(SPARKFUN_REQUEST_INTERVAL)
queued_data = temp_queued_data
print("Managed to reduce the queue size to %s" % len(queued_data))
data = self.get_data()
if data["temperature"] != self.last_temperature or data["humidity"] != self.last_humidity:
if not self.do_stream_data(data):
print("Error sending %s, queueing" % data)
queued_data.append(data)
self.backup_data(data)
self.last_temperature = data["temperature"]
self.last_humidity = data["humidity"]
print("Current temperature {}C, humidity {}%".format(data["temperature"], data["humidity"]))
if self.show_on_lcd:
self.lcd_display_manager.display_message(data)
time.sleep(INTERVAL)
def get_data(self):
self.sensor.trigger()
data = {}
temperature = round(self.sensor.temperature(), 2)
if temperature == (-999):
temperature = self.last_temperature
data["temperature"] = temperature
humidity = round(self.sensor.humidity(), 2)
if humidity == (-999):
humidity = self.last_humidity
data["humidity"] = humidity
return data
def do_stream_data(self, data):
if self.stream_data:
data = urllib.parse.urlencode(data).encode("utf-8")
request = urllib.request.Request(self.url)
request.add_header("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")
try:
with urllib.request.urlopen(request, data) as response:
print(response.read().decode("utf-8"))
except urllib.error.URLError as e:
print("URL Error ", e.reason)
return False
except http.client.BadStatusLine as e:
print("BadStatusLine Error ", e.reason)
return False
return True
return True
def backup_data(self, data):
with open(BACKUP_FILE, "a") as csvfile:
writer = csv.writer(csvfile, delimiter=";")
writer.writerow([data[x] for x in data.keys()])
class DataStreamer():
def __init__(self, public_key, private_key, stream_data=True, show_on_lcd=True):
self.pi = pigpio.pi()
self.sensor = DHT22.sensor(self.pi, GPIO_PIN)
self.last_temperature = 0
self.last_humidity = 0
self.base_url = 'https://data.sparkfun.com/input/'
self.url = self.base_url + public_key + "?private_key=" + private_key
self.stream_data = stream_data
self.show_on_lcd = show_on_lcd
self.lcd_display_manager = LCDDisplayManager()
def run(self):
queued_data = []
while True:
if len(queued_data) > 0:
print("Has to resend %s packages" % len(queued_data))
temp_queued_data = []
while len(queued_data) > 0:
data = queued_data.pop() # the ones the longest in the list are the oldest ones
if not self.do_stream_data(data): # if not successful, queue it again
temp_queued_data.append(data)
time.sleep(SPARKFUN_REQUEST_INTERVAL)
queued_data = temp_queued_data
print("Managed to reduce the queue size to %s" % len(queued_data))
data = self.get_data()
if data['temperature'] != self.last_temperature or data['humidity'] != self.last_humidity:
if not self.do_stream_data(data):
print("Error sending %s, queueing" % data)
queued_data.append(data)
self.backup_data(data)
self.last_temperature = data['temperature']
self.last_humidity = data['humidity']
print("Current temperature {}C, humidity {}%".format(data['temperature'], data['humidity']))
if self.show_on_lcd:
self.lcd_display_manager.display_message(data)
time.sleep(INTERVAL)
def get_data(self):
self.sensor.trigger()
data = {}
temperature = round(self.sensor.temperature(), 2)
if temperature == (-999):
temperature = self.last_temperature
data['temperature'] = temperature
humidity = round(self.sensor.humidity(), 2)
if humidity == (-999):
humidity = self.last_humidity
data['humidity'] = humidity
return data
def do_stream_data(self, data):
if self.stream_data:
data = urllib.parse.urlencode(data).encode('utf-8')
request = urllib.request.Request(self.url)
request.add_header("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")
try:
with urllib.request.urlopen(request, data) as response:
print(response.read().decode('utf-8'))
except urllib.error.URLError as e:
print("URL Error ", e.reason)
return False
except http.client.BadStatusLine as e:
print("BadStatusLine Error ", e.reason)
return False
return True
return True
def backup_data(self, data):
with open(BACKUP_FILE, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter=";")
writer.writerow([data[x] for x in data.keys()])