forked from veles_labs/pyveles
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
from time import sleep
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from typing import Dict, Final
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from minimalmodbus import NoResponseError
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from .generic import ModbusRTUDevice
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class SensorWiredIAQ(ModbusRTUDevice):
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"""
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Wired sensor measuring temperature, relative humidity,
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carbon dioxide and VOC, optionally particulate matter
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"""
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IDENTIFIER: int = 0xBEEF
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input_registers: Dict[str, int] = {
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'T': 30003, # deg C
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'T_F': 30004, # deg F
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'RH': 30005, # %, from SHT4x
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'CO2': 30006, # ppm
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'VOC_INDEX': 30007, # VOC index as calculated by Sensirion library (1 to 500, average 100)
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'VOC_TICKS': 30008, # raw VOC ticks
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'PMC_MASS_1_0': 30009, # ug / m^3
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'PMC_MASS_2_5': 30010, # ug / m^3
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'PMC_MASS_4_0': 30011, # ug / m^3
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'PMC_MASS_10_0': 30012, # ug / m^3
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'PMC_NUMBER_0_5': 30013, # 1 / m^3
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'PMC_NUMBER_1_0': 30014, # 1 / m^3
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'PMC_NUMBER_2_5': 30015, # 1 / m^3
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'PMC_NUMBER_4_0': 30016, # 1 / m^3
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'PMC_NUMBER_10_0': 30017, # 1 / m^3
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'TYPICAL_PARTICLE_SIZE': 30018, # nm
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'T_SCD4x': 30019, # deg C
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'T_SCD4x_F': 30020, # deg F
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'RH_SCD4x': 30021 # %
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} | ModbusRTUDevice.input_registers
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# TODO use super, but __class__ not defined
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holding_registers: Dict[str, int] = {
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'MODBUS_ADDR': 40001,
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'BAUDRATE': 40002,
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'LED_ON': 40003,
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'LED_BRIGHTNESS': 40004,
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'LED_SMOOTH': 40005,
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'CO2_ALERT_LIMIT1': 40006,
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'CO2_ALERT_LIMIT2': 40007,
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'SCD4x_T_OFFSET': 40008
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} | ModbusRTUDevice.holding_registers
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RESET_MAGIC_NUMBER: Final[int] = 0xABCD
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@property
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def CO2(self) -> int:
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return int(self.read_register(self.input_registers["CO2"]))
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@property
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def T(self) -> float:
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# TODO maybe use signed version?
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return self.read_register(self.input_registers["T"], signed=True) / 10
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@property
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def RH(self) -> float:
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return self.read_register(self.input_registers["RH"])
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@property
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def LED(self) -> int:
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return int(self.read_register(self.holding_registers["LED_brightness"]))
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@LED.setter
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def LED(self, value: int):
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if value == 0:
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self.write_register(self.holding_registers["LED_on"], 0)
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else:
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self.write_register(self.holding_registers["LED_brightness"], value)
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sleep(0.1)
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self.write_register(self.holding_registers["LED_on"], 1)
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