def read_hardware_id(self, retry: bool = True) -> int:
"""Reads hardware ID from sensor."""
self.logger.info("Reading hardware ID")
try:
return int(self.i2c.read_register(0x20, retry=retry))
except I2CError as e:
raise exceptions.ReadRegisterError(message="hw id reg",
logger=self.logger) from e
def read_error_register(self, retry: bool = True) -> ErrorRegister:
"""Reads error register."""
self.logger.info("Reading error register")
try:
byte = self.i2c.read_register(0x0E, retry=retry)
except I2CError as e:
raise exceptions.ReadRegisterError(message="error reg",
logger=self.logger) from e
# Parse error register byte
return ErrorRegister(
write_register_invalid=bool(bitwise.get_bit_from_byte(0, byte)),
read_register_invalid=bool(bitwise.get_bit_from_byte(1, byte)),
measurement_mode_invalid=bool(bitwise.get_bit_from_byte(2, byte)),
max_resistance=bool(bitwise.get_bit_from_byte(3, byte)),
heater_fault=bool(bitwise.get_bit_from_byte(4, byte)),
heater_supply=bool(bitwise.get_bit_from_byte(5, byte)),
)
def read_status_register(self, retry: bool = True) -> StatusRegister:
"""Reads status of sensor."""
self.logger.debug("Reading status register")
try:
byte = self.i2c.read_register(0x00, retry=retry)
except I2CError as e:
raise exceptions.ReadRegisterError(message="status reg",
logger=self.logger) from e
# Parse status register byte
status_register = StatusRegister(
firmware_mode=bitwise.get_bit_from_byte(7, byte),
app_valid=bool(bitwise.get_bit_from_byte(4, byte)),
data_ready=bool(bitwise.get_bit_from_byte(3, byte)),
error=bool(bitwise.get_bit_from_byte(0, byte)),
)
self.logger.debug(str(status_register))
return status_register
