Must inverter ESPHome configuration for ESP32

inverter-monitor.yaml

substitutions:
  inverter_id: inverter
  updates: 5s
  api_key: xxx
  ota_password: xxx

esphome:
  name: inverter-monitor
  comment: "Inverter monitor"

esp32:
  board: esp32dev
  framework:
    type: esp-idf

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

captive_portal:

logger:
  level: DEBUG

api:
  encryption:
    key: ${api_key}

ota:
  password: ${ota_password}

uart:
  - id: uart_inverter
    baud_rate: 19200
    tx_pin: GPIO19
    rx_pin: GPIO18
    stop_bits: 1
    parity: NONE
    data_bits: 8
    debug:
      direction: BOTH
      dummy_receiver: false

modbus:
  - id: modbus_inverter
    uart_id: uart_inverter
    send_wait_time: 200ms

modbus_controller:
  - id: must_inverter
    address: 0x04
    modbus_id: modbus_inverter
    command_throttle: 200ms
    setup_priority: -10
    update_interval: ${updates}

sensor:
  # charger sensors
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15201
    name: "PV Charger Workstate"
    register_type: holding

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15202
    name: "PV Charger MPPT state"
    register_type: holding

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15203
    name: "PV Charger Charging state"
    register_type: holding
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15205
    name: "PV Charger Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15206
    name: "PV Charger Battery voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15207
    name: "PV Charger Current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15208
    register_type: holding
    name: "PV Charger power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15209
    register_type: holding
    name: "PV Charger Radiator temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  # - platform: modbus_controller
  #   modbus_controller_id: must_inverter
  #   address: 15210
  #   register_type: holding
  #   name: "PV Charger External temp"
  #   unit_of_measurement: "°C"
  #   accuracy_decimals: 1
  #   icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15212
    register_type: holding
    name: "PV Relay"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15217
    register_type: holding
    id: charger_total_mwh
    internal: true

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15218
    register_type: holding
    id: charger_total_kwh
    internal: true
    filters:
      multiply: 0.1

  - platform: template
    name: "PV Charger Accumulated charger power"
    unit_of_measurement: kWh
    lambda: !lambda 'return (id(charger_total_mwh).state * 1000.0 + id(charger_total_kwh).state );'
    accuracy_decimals: 1
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15219
    register_type: holding
    name: "PV Charger Accumulated day"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15220
    register_type: holding
    name: "PV Charger Accumulated hour"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15221
    register_type: holding
    name: "PV Charger Accumulated minute"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

# inverter sensors
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25201
    register_type: holding
    name: "Inverter Work state"

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25205
    name: "Inverter Battery Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25206
    name: "Inverter Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25207
    name: "Inverter Grid voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25207
    name: "Inverter Grid voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25208
    name: "Inverter BUS Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25209
    name: "Inverter Control current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25210
    name: "Inverter Current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25211
    name: "Inverter Grid current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-ac
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25212
    name: "Inverter Load current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-ac
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25213
    name: "Inverter Power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25214
    name: "Inverter Grid power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    value_type: S_WORD
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25215
    name: "Inverter Load power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25216
    name: "Inverter System load"
    register_type: holding
    unit_of_measurement: "%"
    accuracy_decimals: 1
    icon: mdi:flash

    # MOST INFO

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25233
    register_type: holding
    name: "Inverter AC radiator temp"
    accuracy_decimals: 1
    unit_of_measurement: "°C"
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25234
    register_type: holding
    name: "Inverter Transformer temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25235
    register_type: holding
    name: "Inverter DC Radiator temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25237
    register_type: holding
    name: "Inverter Relay state"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25238
    register_type: holding
    name: "Inverter Relay state Grid"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25239
    register_type: holding
    name: "Inverter Relay state Load"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25240
    register_type: holding
    name: "Inverter Relay state NLine"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25241
    register_type: holding
    name: "Inverter Relay state DC"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25242
    register_type: holding
    name: "Inverter Relay state Earth"
    icon: mdi:electric-switch

# Inverter Accumulated discharge power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25247
    register_type: holding
    id: discharger_total_mwh
    internal: true

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25248
    register_type: holding
    id: discharger_total_kwh
    internal: true
    filters:
      multiply: 0.1

  - platform: template
    name: "Accumulated discharger power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda 'return (id(discharger_total_mwh).state * 1000.0 + id(discharger_total_kwh).state);'

# Inverter Accumulated buy power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25249
    register_type: holding
    id: buy_mwh
    internal: true
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25250
    register_type: holding
    id: buy_kwh
    internal: true
    filters:
      multiply: 0.1
  
  - platform: template
    name: "Accumulated buy power"
    unit_of_measurement: kWh
    lambda: |-
     return (id(buy_mwh).state * 1000.0 + id(buy_kwh).state);
    accuracy_decimals: 1

# Inverter Accumulated sell power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25251
    register_type: holding
    id: sell_mwh

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25252
    register_type: holding
    id: sell_kwh
    filters:
      multiply: 0.1

  - platform: template
    name: "Accumulated sell power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda return (id(sell_mwh).state * 1000.0 + id(sell_kwh).state);

# Inverter Accumulated load power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25253
    register_type: holding
    id: load_mwh
    internal: True

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25254
    register_type: holding
    id: load_kwh
    internal: True
    filters:
      multiply: 0.1
  
  - platform: template
    name: "Accumulated load power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda return (id(load_mwh).state * 1000.0 + id(load_kwh).state);

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25273
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25274
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery current"
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25275
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery grade"
    unit_of_measurement: "V"
    icon: mdi:alpha-V

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25277
    register_type: holding
    name: "Inverter Rated power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash


select:
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    id: energy_use_mode
    name: "Inverter Energy use mode (parameter 00)"
    address: 20109
    optionsmap:
      "SBU (Solar/battery/utility)": 1
      "SUB (Solar/utility/battery)": 2
      "UTI (Utility only)": 3
      "SOL (Solar only)": 4

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    id: charger_source_priority
    name: "Inverter Charger source priority (parameter 10)"
    address: 20143
    optionsmap:
      "CSO (Solar first)": 0
      "SNU (Solar and utility)": 2
      "OSO (Solar only)": 3

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 20111
    id: inverter_ac_input_voltage_range
    name: "Inverter AC input voltage range (02)"
    optionsmap:
      "VDE (184-253VAC)": 0
      "UPS (170-280VAC)": 1
      "APL (90-280VAC)": 2
      "GEN (Generator)": 3


number:
  - platform: modbus_controller
    id: batt_float_voltage
    name: "PV Charger Float voltage"
    unit_of_measurement: "V"
    address: 10103
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_absorb_voltage
    name: "PV Charger Absorb voltage"
    unit_of_measurement: "V"
    address: 10104
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_stop_dischg
    name: "Inverter Battery stop discharging voltage"
    unit_of_measurement: "V"
    address: 20118
    value_type: U_WORD
    lambda: "return x * 0.1; "
    write_lambda: |-
      return x * 10 ;

  - platform: modbus_controller
    id: batt_stop_chg
    name: "Inverter Battery stop charging voltage"
    unit_of_measurement: "V"
    address: 20119
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_low_voltage
    name: "Inverter Battery low voltage"
    unit_of_measurement: "V"
    address: 20127
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_high_voltage
    name: "Inverter Battery high voltage"
    unit_of_measurement: "V"
    address: 20128
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: solar_charger_current
    name: "Inverter Charger current"
    unit_of_measurement: "A"
    address: 20132
    value_type: U_WORD
    multiply: 10

Hello! Your config works for me only once :)

Now it logs out this:

21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes 21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=10103 count=2 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20127 count=2 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20132 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20143 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25201 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25205 count=12 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25233 count=3 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25237 count=6 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25247 count=8 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25273 count=3 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25277 count=1 21:46:24 | [W] | [modbus_controller:181] |

Do you know where is the problem ?

And thanks for you work !

Have additional experiments and results.
I use ESP-01 with latest ESPHome firmware + your YAML config. I chosed original RX/TX for communication with RS485 becouse ESP-01 have only this pins.
So , it works if I doesn't try to view LOGs from device.
If i try to view LOGs - Inverter are stuck and stop give parameters. And only one solution - restart Inverter.
So I suppose that LOG (Debug) use the same UART and thus stuck Inverter with flooded information.
I have changed UART for logging but withh no success ;(

I use such config, but only works if don't use LOG :)

esp8266:
board: esp01_1m

# Enable logging
logger:
level: DEBUG
hardware_uart: UART1
baud_rate: 0

uart:
- id: uart_inverter
baud_rate: 19200
tx_pin: GPIO01
rx_pin: GPIO03
stop_bits: 1
parity: NONE
data_bits: 8
debug:
direction: BOTH
dummy_receiver: false

modbus:
- id: modbus_inverter
uart_id: uart_inverter
send_wait_time: 300ms

modbus_controller:
- id: must_inverter
address: 0x04
modbus_id: modbus_inverter
command_throttle: 300ms
setup_priority: -10
update_interval: ${updates}

There is a mistake in the code probably, adress should be 0x4, not 0x04

modbus_controller:

• id: must_inverter
  address: 0x04
  modbus_id: modbus_inverter
  command_throttle: 200ms
  setup_priority: -10
  update_interval: ${updates}