"air_quality": air_quality,
},
"tags": {
"node": "server",
"location": "salon",
"sensor": "airquality",
},
}]
client.write_points(json_body)
ipcon = IPConnection() # Create IP connection
if __name__ == "__main__":
ipcon = IPConnection() # Create IP connection
aq = BrickletAirQuality(UID, ipcon) # Create device object
ipcon.connect(HOST, PORT) # Connect to brickd
# Don't use device before ipcon is connected
# Register all values callback to function cb_all_values
aq.register_callback(aq.CALLBACK_ALL_VALUES, cb_all_values)
# Set period for all values callback to 1s (1000ms)
aq.set_all_values_callback_configuration(10000, False)
while loop > 0:
loop = 10
ipcon.disconnect()
class WeatherStation:
HOST = "localhost"
PORT = 4223
ipcon = None
lcd = None
air_quality = None
def __init__(self):
self.ipcon = IPConnection() # Create IP connection
# Connect to brickd (retry if not possible)
while True:
try:
self.ipcon.connect(WeatherStation.HOST, WeatherStation.PORT)
break
except Error as e:
log.error('Connection Error: ' + str(e.description))
time.sleep(1)
except socket.error as e:
log.error('Socket error: ' + str(e))
time.sleep(1)
self.ipcon.register_callback(IPConnection.CALLBACK_ENUMERATE,
self.cb_enumerate)
self.ipcon.register_callback(IPConnection.CALLBACK_CONNECTED,
self.cb_connected)
# Enumerate Bricks and Bricklets (retry if not possible)
while True:
try:
self.ipcon.enumerate()
break
except Error as e:
log.error('Enumerate Error: ' + str(e.description))
time.sleep(1)
def cb_all_values(self, iaq_index, iaq_index_accuracy, temperature,
humidity, air_pressure):
if self.lcd is not None:
self.lcd.write_line(2, 0, 'IAQ: {0:6}'.format(iaq_index))
# 0xF8 == ° on LCD 128x64 charset
self.lcd.write_line(
3, 0, 'Temp: {0:6.2f} {1}C'.format(temperature / 100.0,
chr(0xF8)))
self.lcd.write_line(
4, 0, 'Humidity: {0:6.2f} %RH'.format(humidity / 100.0))
self.lcd.write_line(
5, 0, 'Air Pres: {0:6.1f} mbar'.format(air_pressure / 100.0))
def cb_enumerate(self, uid, connected_uid, position, hardware_version,
firmware_version, device_identifier, enumeration_type):
if enumeration_type == IPConnection.ENUMERATION_TYPE_CONNECTED or \
enumeration_type == IPConnection.ENUMERATION_TYPE_AVAILABLE:
if device_identifier == BrickletLCD128x64.DEVICE_IDENTIFIER:
try:
# Initialize newly enumerated LCD128x64 Bricklet
self.lcd = BrickletLCD128x64(uid, self.ipcon)
self.lcd.clear_display()
self.lcd.write_line(0, 0, " Weather Station")
log.info('LCD 128x64 initialized')
except Error as e:
log.error('LCD 128x64 init failed: ' + str(e.description))
self.lcd = None
elif device_identifier == BrickletAirQuality.DEVICE_IDENTIFIER:
try:
# Initialize newly enumaratedy Air Quality Bricklet and configure callbacks
self.air_quality = BrickletAirQuality(uid, self.ipcon)
self.air_quality.set_all_values_callback_configuration(
1000, False)
self.air_quality.register_callback(
self.air_quality.CALLBACK_ALL_VALUES,
self.cb_all_values)
log.info('Air Quality initialized')
except Error as e:
log.error('Air Quality init failed: ' + str(e.description))
self.air_quality = None
def cb_connected(self, connected_reason):
# Eumerate again after auto-reconnect
if connected_reason == IPConnection.CONNECT_REASON_AUTO_RECONNECT:
log.info('Auto Reconnect')
while True:
try:
self.ipcon.enumerate()
break
except Error as e:
log.error('Enumerate Error: ' + str(e.description))
time.sleep(1)