https://gist.github.com/cliftonc/4e93b2dc8ff6acb5dbbcd48b1df92224

configuration.yaml

modbus:
  - name: brink_flair
    type: serial
    port: /dev/ttyUSB0
    baudrate: 19200
    bytesize: 8
    method: rtu
    parity: E
    stopbits: 1
    sensors:
      - name: HRA Active Function
        slave: 20
        address: 4020
        data_type: int16
        input_type: input
        scan_interval: 60
      - name: Fan control type
        slave: 20
        address: 4021
        data_type: int16
        input_type: input
      - name: Ventilation mode
        slave: 20
        address: 4022
        data_type: int16
        input_type: input
      - name: Current supply pressure
        unit_of_measurement: Pa
        slave: 20
        address: 4023
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: Current exhaust pressure
        unit_of_measurement: Pa
        slave: 20
        address: 4024
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: Fan Inlet Status
        slave: 20
        address: 4030
        data_type: int16
        input_type: input
      - name: Setpoint supply air
        unit_of_measurement: m3
        slave: 20
        address: 4031
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Current value of supply air
        unit_of_measurement: m3
        slave: 20
        address: 4032
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: MassFlow inlet, actual value
        unit_of_measurement: kg/h
        slave: 20
        address: 4033
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Speed supply fan
        unit_of_measurement: RPM
        slave: 20
        address: 4034
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Speed inlet anemometer
        unit_of_measurement: RPM
        slave: 20
        address: 4035
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Temperature sensor supply fan
        unit_of_measurement: °C
        slave: 20
        address: 4036
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: Fan inlet sensor rel. humidity
        unit_of_measurement: "%"
        slave: 20
        address: 4037
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Fan exhaust Status
        slave: 20
        address: 4040
        data_type: int16
        input_type: input
      - name: Setpoint flow exhaust air
        unit_of_measurement: m3
        slave: 20
        address: 4041
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Current value flow exhaust air
        unit_of_measurement: m3
        slave: 20
        address: 4042
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: MassFlow exhaust, actual value
        unit_of_measurement: kg/h
        slave: 20
        address: 4043
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Speed exhaust fan
        unit_of_measurement: RPM
        slave: 20
        address: 4044
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Speed exhaust anemometer
        unit_of_measurement: RPM
        slave: 20
        address: 4045
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Temperature sensor exhaust fan
        unit_of_measurement: °C
        slave: 20
        address: 4046
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: Fan exhaust sensor rel. humidity
        unit_of_measurement: "%"
        slave: 20
        address: 4047
        scale: 1
        data_type: uint16
        input_type: input
        precision: 0
      - name: Bypass status
        slave: 20
        address: 4050
        data_type: int16
        input_type: input
      - name: Bypass Step Position
        slave: 20
        address: 4051
        data_type: uint16
        input_type: input
      - name: Status preheater
        slave: 20
        address: 4060
        data_type: int16
        input_type: input
      - name: Capacity of preheater
        unit_of_measurement: "%"
        slave: 20
        address: 4061
        data_type: uint16
        input_type: input
      - name: Frost status
        slave: 20
        address: 4070
        data_type: uint16
        input_type: input
      - name: Frost heaterpower
        unit_of_measurement: "%"
        slave: 20
        address: 4071
        data_type: uint16
        input_type: input        
      - name: Fan Frost Reduction
        unit_of_measurement: "%"
        slave: 20
        address: 4072
        data_type: uint16
        input_type: input
      - name: Flow switch position
        slave: 20
        address: 4080
        data_type: uint16
        input_type: input
      - name: NTC1 temperature
        unit_of_measurement: °C
        slave: 20
        address: 4081
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: NTC2 temperature
        unit_of_measurement: °C
        slave: 20
        address: 4082
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: RHT Sensor Humidity
        unit_of_measurement: "%"
        slave: 20
        address: 4083
        scale: 0.1
        data_type: int16
        input_type: input
        precision: 1
      - name: Status filter
        slave: 20
        address: 4100
        data_type: uint16
        input_type: input
      - name: Current time
        slave: 20
        address: 4110
        data_type: uint16
        input_type: input
      - name: Current date H
        slave: 20
        address: 4111
        data_type: uint16
        input_type: input
      - name: Current date L
        slave: 20
        address: 4112
        data_type: uint16
        input_type: input
      - name: Date Month Day
        slave: 20
        address: 6903
        data_type: uint16
        input_type: holding
      - name: Date Year
        slave: 20
        address: 6904
        data_type: uint16
        input_type: holding
      - name: Time
        slave: 20
        address: 6905
        data_type: uint16
        input_type: holding
      - name: Modbus control switched on
        slave: 20
        address: 8000
        data_type: uint16
        input_type: holding
      - name: Request change in switch position
        slave: 20
        address: 8001
        data_type: uint16
        input_type: holding