OpenCARWINGS Home Assistant template, add this to yoru configuration

configuration.yaml

template:
  - binary_sensor:
    - name: "EV Charging"
      unique_id: ev_charging
      device_class: battery_charging
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').charging }}
    - name: "EV Quick Charging"
      unique_id: ev_qc_charging
      device_class: battery_charging
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').quick_charging }}
    - name: "EV A/C"
      unique_id: ev_ac
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').ac_status }}
    - name: "Leaf EV Car Running"
      unique_id: leaf_ev_car_running
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').car_running }}
    - name: "Leaf EV Car Driving"
      unique_id: leaf_ev_car_driving
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').car_gear != 0 }}
  - binary_sensor:
    - name: "EV Plugged In"
      unique_id: leaf_ev_plugged_in
      device_class: plug
      state: >
          {{ state_attr('sensor.ev_raw_data', 'ev_info').plugged_in }}
          
 
sensor:
    - platform: template
      sensors:
          ev_full_charge_time:
            friendly_name: "EV 240V/3.6kW charging time"
            value_template: >
              {% set minutes = state_attr('sensor.ev_raw_data', 'ev_info').full_chg_time | int %}
              {% if minutes in [2047, 4095] %}
                unknown
              {% else %}
                {{ (minutes / 60) | round(1) }}
              {% endif %}
            unit_of_measurement: "h"
            device_class: duration

          # Limit Charge Time
          ev_limit_charge_time:
            friendly_name: "EV 120V charging time"
            value_template: >
              {% set minutes = state_attr('sensor.ev_raw_data', 'ev_info').limit_chg_time | int %}
              {% if minutes in [2047, 4095] %}
                unknown
              {% else %}
                {{ (minutes / 60) | round(1) }}
              {% endif %}
            unit_of_measurement: "h"
            device_class: duration

          # OBC 6kW (On-Board Charger)
          ev_obc_6kw:
            friendly_name: "EV 6kW Charge Time"
            value_template: >
              {% set minutes = state_attr('sensor.ev_raw_data', 'ev_info').obc_6kw | int %}
              {% if minutes in [2047, 4095] %}
                unknown
              {% else %}
                {{ (minutes / 60) | round(1) }}
              {% endif %}
            unit_of_measurement: "h"
            device_class: duration
          leaf_ev_soc:
             friendly_name: "EV State of Charge"
             value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').soc | float | round(1) }}"
             unit_of_measurement: "%"
             device_class: battery
             # SoC Display (alternative SoC value)
          leaf_ev_soc_display:
            friendly_name: "EV SoC Display"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').soc_display | float | round(1) }}"
            unit_of_measurement: "%"
            device_class: battery

          # Range with A/C On
          leaf_ev_range_acon:
            friendly_name: "EV Range (A/C On)"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').range_acon | int }}"
            unit_of_measurement: "km"
            device_class: distance

          # Range with A/C Off
          leaf_ev_range_acoff:
            friendly_name: "EV Range (A/C Off)"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').range_acoff | int }}"
            unit_of_measurement: "km"
            device_class: distance

          # State of Health (SoH)
          leaf_ev_soh:
            friendly_name: "EV State of Health"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').soh | int }}"
            unit_of_measurement: "%"
            device_class: battery

          # Battery Capacity (Wh Content)
          leaf_ev_battery_capacity:
            friendly_name: "EV Battery Capacity"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').wh_content | float | round(0) }}"
            unit_of_measurement: "Wh"
            device_class: energy
    
          # Charge Bars
          leaf_ev_charge_bars:
            friendly_name: "EV Charge Bars"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').charge_bars | int }}"
            unit_of_measurement: "bars"

          # Charge Bars
          leaf_ev_cap_bars:
            friendly_name: "EV Capacity Bars"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').cap_bars | int }}"
            unit_of_measurement: "bars"

          leaf_ev_gids:
            friendly_name: "EV GIDs"
            value_template: "{{ state_attr('sensor.ev_raw_data', 'ev_info').gids | int }}"
            device_class: energy
            unit_of_measurement: "GID"
            

          
 rest:
  - resource: "https://opencarwings.viaaq.eu/api/car/<vin>/"  # Replace with your actual VIN and server
    scan_interval: 30
    method: GET
    headers:
        Authorization: "Token <token>"
    sensor:
      - name: "EV Raw Data"
        value_template: "1"
        json_attributes:
          - ev_info
          - location
          - vin
          - nickname