Brand new user to Home Assistant and i’ve run into a problem that i can quite seems to solve.
I have an mqtt sensor that looks like this:
sensor:
- &watts_live
device:
name: Watts Live
identifiers: 11D1045220005678
manufacturer: Watts
model: Watts Live
- <<: *watts_live
name: Positive Active Energy
device_class: energy
state_class: total
unit_of_measurement: Wh
value_template: "{{ value_json.positive_active_energy }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_active_energy
- <<: *watts_live
name: Negative Active Energy
device_class: energy
state_class: total
unit_of_measurement: Wh
value_template: "{{ value_json.negative_active_energy }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_active_energy
- <<: *watts_live
name: Positive Reactive Energy
device_class: energy
state_class: total
unit_of_measurement: varh
value_template: "{{ value_json.positive_reactive_energy }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_reactive_energy
- <<: *watts_live
name: Negative Reactive Energy
device_class: energy
state_class: total
unit_of_measurement: varh
value_template: "{{ value_json.negative_reactive_energy }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_reactive_energy
- <<: *watts_live
name: Positive Active Power
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.positive_active_power }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_active_power
- <<: *watts_live
name: Negative Active Power
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.negative_active_power }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_active_power
- <<: *watts_live
name: Positive Active Power L1
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.positive_active_power_l1 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_active_power_l1
- <<: *watts_live
name: Positive Active Power L2
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.positive_active_power_l2 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_active_power_l2
- <<: *watts_live
name: Positive Active Power L3
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.positive_active_power_l3 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_active_power_l3
- <<: *watts_live
name: Negative Active Power L1
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.negative_active_power_l1 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_active_power_l1
- <<: *watts_live
name: Negative Active Power L2
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.negative_active_power_l2 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_active_power_l2
- <<: *watts_live
name: Negative Active Power L3
device_class: power
state_class: measurement
unit_of_measurement: W
value_template: "{{ value_json.negative_active_power_l3 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_active_power_l3
- <<: *watts_live
name: Positive Reactive Power
device_class: reactive_power
state_class: measurement
unit_of_measurement: var
value_template: "{{ value_json.positive_reactive_power }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: positive_reactive_power
- <<: *watts_live
name: Negative Reactive Power
device_class: reactive_power
state_class: measurement
unit_of_measurement: var
value_template: "{{ value_json.negative_reactive_power }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: negative_reactive_power
- <<: *watts_live
name: Voltage L1
device_class: voltage
state_class: measurement
unit_of_measurement: V
value_template: "{{ value_json.voltage_l1 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: voltage_l1
- <<: *watts_live
name: Voltage L2
device_class: voltage
state_class: measurement
unit_of_measurement: V
value_template: "{{ value_json.voltage_l2 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: voltage_l2
- <<: *watts_live
name: Voltage L3
device_class: voltage
state_class: measurement
unit_of_measurement: V
value_template: "{{ value_json.voltage_l3 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: voltage_l3
- <<: *watts_live
name: Current L1
device_class: current
state_class: measurement
unit_of_measurement: A
value_template: "{{ value_json.current_l1 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: current_l1
- <<: *watts_live
name: Current L2
device_class: current
state_class: measurement
unit_of_measurement: A
value_template: "{{ value_json.current_l2 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: current_l2
- <<: *watts_live
name: Current L3
device_class: current
state_class: measurement
unit_of_measurement: A
value_template: "{{ value_json.current_l3 }}"
state_topic: watts/SERIAL_NUMBER/measurement
unique_id: current_l3
This configuration works perfectly. I get all my data and all is good, but i really would like to define the state_topic (which is identical for all entities) in &watts_live along with device instead of having to define it for each entity.
Problem is that if i move it into &watts_live, it does technically work, but i also get:
homeassistant.exceptions.InvalidStateError: Invalid state with length 524. State max length is 255 characters.
Because the MQTT payload is a JSON-object that contains all of the entities
How do i share the topic between all entities and not have Home Assistant complain?
