def __init__(self, device_loc, baud_rate=9600, testing=False):
super(K30Sensor, self).__init__()
self.logger = logging.getLogger("mycodo.inputs.k30")
self._co2 = None
self.k30_lock_file = None
if not testing:
import serial
# Check if device is valid
self.serial_device = is_device(device_loc)
if self.serial_device:
try:
self.ser = serial.Serial(self.serial_device,
baudrate=baud_rate,
timeout=1)
self.k30_lock_file = "/var/lock/sen-k30-{}".format(
device_loc.replace('/', ''))
except serial.SerialException:
self.logger.exception('Opening serial')
else:
self.logger.error(
'Could not open "{dev}". '
'Check the device location is correct.'.format(
dev=device_loc))
def __init__(self,
interface,
device_loc=None,
baud_rate=None,
i2c_address=None,
i2c_bus=None,
testing=False):
super(MHZ16Sensor, self).__init__()
self.logger = logging.getLogger("mycodo.inputs.mh_z16")
self._co2 = None
self.mhz16_lock_file = None
self.interface = interface
if not testing:
import serial
import smbus
if self.interface == 'UART':
self.logger = logging.getLogger(
"mycodo.inputs.mh_z16.{dev}".format(
dev=device_loc.replace('/', '')))
# Check if device is valid
self.serial_device = is_device(device_loc)
if self.serial_device:
try:
self.mhz16_lock_file = "/var/lock/sen-mhz16-{}".format(
device_loc.replace('/', ''))
self.ser = serial.Serial(self.serial_device,
baudrate=baud_rate,
timeout=1)
except serial.SerialException:
self.logger.exception('Opening serial')
else:
self.logger.error(
'Could not open "{dev}". '
'Check the device location is correct.'.format(
dev=device_loc))
elif self.interface == 'I2C':
self.logger = logging.getLogger(
"mycodo.inputs.mh_z16.{dev}".format(dev=i2c_address))
self.cmd_measure = [
0xFF, 0x01, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63
]
self.IOCONTROL = 0X0E << 3
self.FCR = 0X02 << 3
self.LCR = 0X03 << 3
self.DLL = 0x00 << 3
self.DLH = 0X01 << 3
self.THR = 0X00 << 3
self.RHR = 0x00 << 3
self.TXLVL = 0X08 << 3
self.RXLVL = 0X09 << 3
self.i2c_address = i2c_address
self.i2c = smbus.SMBus(i2c_bus)
self.begin()
def __init__(self, device_loc, baud_rate=9600):
super(MHZ19Sensor, self).__init__()
self.logger = logging.getLogger("mycodo.sensors.mhz19.{dev}".format(
dev=device_loc.replace('/', '')))
self.k30_lock_file = None
self._co2 = 0
# Check if device is valid
self.serial_device = is_device(device_loc)
if self.serial_device:
try:
self.ser = serial.Serial(self.serial_device,
baudrate=baud_rate,
timeout=1)
self.k30_lock_file = "/var/lock/sen-mhz19-{}".format(
device_loc.replace('/', ''))
except serial.SerialException:
self.logger.exception('Opening serial')
else:
self.logger.error(
'Could not open "{dev}". '
'Check the device location is correct.'.format(dev=device_loc))