modbus-esp8266.yaml

esphome:
  name: modbus-esp8266
  friendly_name: modbus-esp8266

esp8266:
  board: d1_mini

# disable UART logging, need hardware for modbus
logger:
  baud_rate: 0

# name your device
substitutions:
 heat_pump_name: rotenso

# Enable Home Assistant API
api:
  encryption:
    key: !secret esp8266_api_key

ota:
  password: !secret esp8266_ota_pwd

wifi:
  networks:
  - ssid: !secret wifi1_ssid
    password: !secret wifi_password
  - ssid: !secret wifi2_ssid
    password: !secret wifi_password
  - ssid: !secret wifi3_ssid
    password: !secret wifi_password
    
  # Enable fallback hotspot in case wifi connection fails
  ap:
    ssid: "modbus-esp8266 Fallback Hotspot"
    password: !secret esp8266_wifi_fallback_pwd

captive_portal:

text_sensor:
  # Send Uptime in raw seconds
  - platform: template
    name: Uptime
    id: uptime_human
    icon: mdi:clock-start

uart:
  rx_pin: RX 
  tx_pin: TX  
  baud_rate: 9600
  #these are defaults, just show for clarity
  stop_bits: 1
  parity: NONE
  data_bits: 8

modbus:
  id: modbus_heatpump

modbus_controller:
  - id: modbus_1
    ## the Modbus device addr
    address: 0x1
    modbus_id: modbus_heatpump
    setup_priority: -10
#    update_interval: 15s


#SWITCHES, SLIDERS

switch:
  - platform: modbus_controller
    id: ${heat_pump_name}_R0B2_dhw
    name: hp_R0B2_dhw_heating 
    #R0,B2 0: DHW(T5S) power off; 1: DHW(T5S) power on
    register_type: holding
    address: 0
    bitmask: 0x4
    entity_category: config
    icon: "mdi:toggle-switch"
  
  - platform: modbus_controller
    id: ${heat_pump_name}_R0B1_heating
    name: hp_R0B1_floor_heating
    #R0,B1: 0: power off floor heating; 1: power on floor heating;(zone 1)(water flow temperature control)
    register_type: holding
    address: 0
    bitmask: 0x2
    entity_category: config
    icon: "mdi:toggle-switch"

  - platform: modbus_controller
    id: ${heat_pump_name}_R5B4_Disinfect
    name: hp_R5B4_disinfect
    #R5B5 disinfect
    register_type: holding
    address: 5
    bitmask: 0x10
    entity_category: config
    icon: "mdi:toggle-switch"

  - platform: modbus_controller
    id: ${heat_pump_name}_R5B6_SilentMode
    name: hp_R5B6_Silent_Mode
    #R5,B6: silent mode
    register_type: holding
    address: 5
    bitmask: 0x40
    entity_category: config
    icon: "mdi:toggle-switch"

  - platform: modbus_controller
    id: ${heat_pump_name}_R5B7_SilentModeLevel
    name: hp_R5B7_Silent_Mode_Level
    #R5,B7: 0: Silent mode level1; 1: Silent mode level2
    register_type: holding
    address: 5
    bitmask: 0x80
    entity_category: config
    icon: "mdi:toggle-switch"

  - platform: modbus_controller
    id: ${heat_pump_name}_R5_B10_ECO_Mode
    name: hp_R5B10_ECO_mode
    # R5,B10 ECO Mode
    register_type: holding
    address: 5
    bitmask: 0x400
    entity_category: config
    icon: "mdi:toggle-switch"

  - platform: modbus_controller
    id: ${heat_pump_name}_R5_B12_Curve1_On
    name: hp_R5B12_Curve1_On
    # R5,B12 Curve1 On
    register_type: holding
    address: 5
    bitmask: 0x1000
    entity_category: config
    icon: "mdi:toggle-switch"

number:
  - platform: modbus_controller
    id: ${heat_pump_name}_R5_T5s
    name: "hp_T5s_DHW_target_temperature"
    register_type: holding
    address: 4
    value_type: U_WORD
    min_value: 40
    max_value: 60
    mode: box
    entity_category: config
    unit_of_measurement: "°C"

  - platform: modbus_controller
    id: ${heat_pump_name}_R2_temp_Zone1
    name: "hp_R2_temp_Zone1"
    # R2 Water temperature T1S floor heating Zone1
    register_type: holding
    address: 0x02 
    bitmask: 0xFF
    value_type: U_WORD
    min_value: 20
    max_value: 35
    mode: box
    entity_category: config
    unit_of_measurement: "°C"
  
  - platform: modbus_controller
    id: ${heat_pump_name}_R6_curve
    name: "hp_R6_curve1"
    # R6 B0-7 Climate Curve 1-9(zone 1)
    register_type: holding
    address: 0x06 
    bitmask: 0xFF
    value_type: U_WORD  
    entity_category: config
    min_value: 1
    max_value: 9
    mode: box


#-----------------------------------------------------------------------
#READING BIT SENSORS
#binary sensors
binary_sensor:

#  - platform: modbus_controller
#    id: ${heat_pump_name}_R0B0_room_temperature_control
#    name: hp_R0B0_floor_heating
#    #R0,B0: room temperature control
#    register_type: holding
#    address: 0
#    bitmask: 0x1

#  - platform: modbus_controller
#    id: ${heat_pump_name}_R5B11_constant_temp_water_recycling
#    name: hp_R5B11_constant_water_recycling
#    # R5,B11: HW pump's running constant-temperature water recycling
#    register_type: holding
#    address: 5
#    bitmask: 0x800

  - platform: modbus_controller
    id: ${heat_pump_name}_R5B5_Holiday_away
    name: hp_R5B5_holiday_away
    #R5B5 Holiday away (the status can only be read, but cannot be changed)
    register_type: holding
    address: 5
    bitmask: 0x20

  - platform: modbus_controller
    id: ${heat_pump_name}_R5B8_Holiday_Home
    name: hp_R0B8_holiday_Home
    # R5,B8 Holiday home (the status can only be read, not changed)
    register_type: holding
    address: 5
    bitmask: 0x100

  - platform: modbus_controller
    id: ${heat_pump_name}_R128B1_Defrosting
    name: hp_R128B1_Defrosting
    #R128B1_Defrosting
    register_type: holding
    address: 128
    bitmask: 0x02

  - platform: modbus_controller
    id: ${heat_pump_name}_R129B0_IBH
    name: hp_R129B0_IBH
    #R129B0_IBH
    register_type: holding
    address: 129
    bitmask: 0x1

  - platform: modbus_controller
    id: ${heat_pump_name}_R129B1_IBH2
    name: hp_R129B1_IBH2
    #R129B1_IBH2
    register_type: holding
    address: 129
    bitmask: 0x2

  - platform: modbus_controller
    id: ${heat_pump_name}_R129B2_TBH
    name: hp_R129B2_TBH
    #R129B2_TBH
    register_type: holding
    address: 129
    bitmask: 0x4
      
  - platform: modbus_controller
    id: ${heat_pump_name}_R129B15_Defrosting
    name: hp_R129B15_Defrosting
    #R129B15_Defrosting
    register_type: holding
    address: 129
    bitmask: 0x8000


# End of binary sensors

sensor:  
#by registry number, like : _100

  - platform: modbus_controller
    id: ${heat_pump_name}_100 # Compressor operating frequency in Hz
    name: "hp_compressor_frequency" 
    state_class: measurement
    register_type: holding
    address: 0x64 #dec 100
    unit_of_measurement: "Hz"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_102 # Fan speed, in r/min
    name: "hp_fan_speed_rpm"
    state_class: measurement
    register_type: holding
    address: 0x66 # 
    unit_of_measurement: "rpm"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_104 #Water inlet temperature
    name: "hp_TW_in_Entering_Water_Temperature"
    state_class: measurement
    register_type: holding
    address: 0x68
    unit_of_measurement: "°C"
    value_type: S_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_105 # Water outlet temperature
    name: "hp_TW_out_Leaving_Water_Temperature"
    state_class: measurement
    register_type: holding
    address: 0x69
    unit_of_measurement: "°C"
    value_type: S_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_107 # Outdoor ambient temperature 
    name: "hp_T4_outdoor_temperature"
    state_class: measurement
    register_type: holding
    address: 0x6B
    unit_of_measurement: "°C"
    value_type: S_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_110 # Total water outlet temperature
    name: "hp_T1_Leaving_Water_Temperature"
    state_class: measurement
    register_type: holding
    address: 0x6E
    unit_of_measurement: "°C"
    value_type: S_WORD
  
  - platform: modbus_controller
    id: ${heat_pump_name}_114 # Room temperature
    name: "Ta_room_temperature"
    state_class: measurement
    register_type: holding
    address: 0x72
    unit_of_measurement: "°C"
    value_type: S_WORD
  
  - platform: modbus_controller
    id: ${heat_pump_name}_115 # Water tank temperature
    name: "T5_Storage_Tank_Water_Temperature"
    state_class: measurement
    register_type: holding
    address: 0x73
    unit_of_measurement: "°C"
    value_type: S_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_118 # Outdoor unit operating current A
    name: "hp_ODU_Current"
    state_class: measurement
    register_type: holding
    address: 0x76
    unit_of_measurement: "A"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_119 # Outdoor unit voltage  V
    name: "hp_ODU_Voltage"
    state_class: measurement
    register_type: holding
    address: 0x77
    unit_of_measurement: "V"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_122 # Compressor operating time in hour
    name: "hp_compressor_runnning_time"
    state_class: total_increasing
    register_type: holding
    address: 0x7A
    unit_of_measurement: "h"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_133 # DC bus current A
    name: "hp_DC_bus_current"
    state_class: measurement
    register_type: holding
    address: 0x85
    unit_of_measurement: "A"
    value_type: U_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_134 # DC bus voltage, the actual value/10
    name: "hp_DC_bus_voltage"
    state_class: measurement
    register_type: holding
    address: 0x86
    unit_of_measurement: "V"
    value_type: U_WORD
  #  accuracy_decimals: 1
    filters:
      - multiply: 10
  
  - platform: modbus_controller
    id: ${heat_pump_name}_136 # Climate curve T1S calculated value zone 1
    name: "T1S_curve_calculated_value_zone1"
    state_class: measurement
    register_type: holding
    address: 0x88
    unit_of_measurement: "°C"
    value_type: S_WORD

  - platform: modbus_controller
    id: ${heat_pump_name}_138 # The actual value*100 m3/H
    name: "hp_water_flow current_value"
    state_class: measurement
    register_type: holding
    address: 0x8A
    unit_of_measurement: "m³/h"
    value_type: U_WORD
    accuracy_decimals: 2
    filters:
      - multiply: 0.01

  - platform: modbus_controller
    id: ${heat_pump_name}_140 # Ability of hydraulic module, actual value*100 kW
    name: "hp_IDU_capacity_current_value"
    state_class: measurement
    register_type: holding
    address: 0x8C
    unit_of_measurement: "kW"
    value_type: U_WORD
    accuracy_decimals: 2
    filters:
      - multiply: 0.01
    
  - platform: modbus_controller
    id: ${heat_pump_name}_143_dword
    name: "hp_energy_consumption"
    state_class: total_increasing
    register_type: holding
    address: 0x8F
    unit_of_measurement: "kWh"
    value_type: U_DWORD

  - platform: modbus_controller
    id: ${heat_pump_name}_145_dword
    name: "hp_heating_capacity"
    state_class: total_increasing
    register_type: holding
    address: 0x91
    unit_of_measurement: "kWh"
    value_type: U_DWORD

#config values

# uptime sensor  
   
  - platform: uptime
    name: hp_uptime
    id: uptime_sensor
    update_interval: 60s
    on_raw_value:
      then:
        - text_sensor.template.publish:
            id: uptime_human
            # Custom C++ code to generate the result
            state: !lambda |-
              int seconds = round(id(uptime_sensor).raw_state);
              int days = seconds / (24 * 3600);
              seconds = seconds % (24 * 3600);
              int hours = seconds / 3600;
              seconds = seconds % 3600;
              int minutes = seconds /  60;
              seconds = seconds % 60;
              return (
                (days ? to_string(days) + "d " : "") +
                (hours ? to_string(hours) + "h " : "") +
                (minutes ? to_string(minutes) + "m " : "") +
                (to_string(seconds) + "s")
              ).c_str();