def main():
rospy.init_node("Measure_CO2", anonymous=True)
CO2_int_pub = rospy.Publisher("CO2", CO2, queue_size=1000)
loop_rate = rospy.Rate(RATE)#Set the refresh rate in Hertz
CO2_value = CO2()
sensor_attached = True
try:#Try to connect the sensor
c = Cozir('/dev/ttyUSB0')#Create the sensor object
c.set_filter(16)#Set the filter to 16
except:
rospy.loginfo("CO2 sensor not attached")
sensor_attached = False
CO2_value.sensor_attached = sensor_attached;
temperature_calibration_factor = 1.0
humidity_calibration_factor = 1.0
while not rospy.is_shutdown():
if(sensor_attached):
CO2_value.CO2level = round(c.read_CO2(),1)
CO2_value.temperature = round(c.read_temperature() *temperature_calibration_factor,1)
CO2_value.humidity = round(c.read_humidity()* humidity_calibration_factor,1)
else:#If the sensor is not connected the sensor will give 0.0 measurements
CO2_value.CO2level = 0.0
CO2_value.temperature = 0.0
CO2_value.humidity = 0.0
CO2_int_pub.publish(CO2_value)
loop_rate.sleep()
def __init__(self, input_dev, testing=False):
super(InputModule, self).__init__(input_dev,
testing=testing,
name=__name__)
if not testing:
from cozir import Cozir
self.uart_location = input_dev.uart_location
self.sensor = Cozir(self.uart_location)
def __init__(self, input_dev, testing=False):
super(InputModule, self).__init__()
self.setup_logger(testing=testing, name=__name__, input_dev=input_dev)
if not testing:
from cozir import Cozir
self.device_measurements = db_retrieve_table_daemon(
DeviceMeasurements).filter(
DeviceMeasurements.device_id == input_dev.unique_id)
self.uart_location = input_dev.uart_location
self.sensor = Cozir(self.uart_location)
def __init__(self, input_dev, testing=False):
super(COZIRSensor, self).__init__()
self.logger = logging.getLogger("mycodo.inputs.cozir")
self._co2 = None
self._dew_point = None
self._humidity = None
self._temperature = None
if not testing:
from cozir import Cozir
self.logger = logging.getLogger(
"mycodo.inputs.cozir_{id}".format(id=input_dev.id))
self.device_loc = input_dev.device_loc
self.convert_to_unit = input_dev.convert_to_unit
self.sensor = Cozir(self.device_loc)
def __init__(self, input_dev, testing=False):
super(InputModule, self).__init__()
self.logger = logging.getLogger("mycodo.inputs.cozir_co2")
if not testing:
from cozir import Cozir
self.logger = logging.getLogger("mycodo.cozir_co2_{id}".format(
id=input_dev.unique_id.split('-')[0]))
self.device_measurements = db_retrieve_table_daemon(
DeviceMeasurements).filter(
DeviceMeasurements.device_id == input_dev.unique_id)
self.uart_location = input_dev.uart_location
self.sensor = Cozir(self.uart_location)
def initialize_input(self):
from cozir import Cozir
self.sensor = Cozir(self.input_dev.uart_location)
def get_co2_sensor(device):
return Cozir(device)