mqtt-bms.yaml

#The bms-to-inverter project does not support Home Assistant MQTT discovery.  Configuration must be done manually in config.yaml.
#Copy this file to Home Assistant config folder
#Modify configuration.yaml file in that folder, adding this line (remove the #):
#
#mqtt: !include mqtt-bms.yaml
#
#Note that if you already have MQTT entries in you configuration.yaml, you may need to modify the include approach.
#
#You can modify the below configuration as needed, adding or removing entities as required.  If you add, make sure that the device info is identical.  
#All entities are grouped under the device name, based on these identical entries
#To add, you can peruse the JSON file which captures the incoming data from bms-to-inverter.  The JSON structure is independent of the BMS you are using.  
#The example is from a typical #Chinese battery using the Pylon-CAN BMS, and is rather sparse in the data it produces. 
#Note that here all of the numeric values are in tenths and so must be divided by 10 in the value template.
  sensor:
    - name: "State of Charge"
      unique_id: "bms_packSOC"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].packSOC / 10 }}"
      device_class: BATTERY
      unit_of_measurement: "%"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "Charge Current"
      unique_id: "bms_packCurrent"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].packCurrent / 10 }}"
      device_class: CURRENT
      unit_of_measurement: "A"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "Voltage"
      unique_id: "bms_packVoltage"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].packVoltage / 10 }}"
      device_class: VOLTAGE
      unit_of_measurement: "V"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "Temperature"
      unique_id: "bms_tempAverage"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].tempAverage / 10 }}"
      device_class: TEMPERATURE
      unit_of_measurement: "°C"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "Max Charge Current"
      unique_id: "bms_maxPackChargeCurrent"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].maxPackChargeCurrent / 10 }}"
      device_class: CURRENT
      unit_of_measurement: "A"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "Max Discharge Current"
      unique_id: "bms_maxPackDischargeCurrent"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].maxPackDischargeCurrent / 10 }}"
      device_class: CURRENT
      unit_of_measurement: "A"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"
    - name: "State of Health"
      unique_id: "bms_packSOH"
      state_topic: "bms/state"
      value_template: "{{ value_json.batteryPacks[0].packSOH / 10 }}"
      device_class: BATTERY
      unit_of_measurement: "%"
      device:
        identifiers: "bms-to-inverter"
        manufacturer: "ACME Batteries"
        name: "Battery"
        model: "LiFePO4 10kWh"