Vehicle Configuration with Custom Sensor Support HTTP

[Brambuu]

Hi everyone!
I am trying to create a new vehicle in EVCC with the use of the sensors which I received from another sensor.
From looking at the example provided at "HA_AS_EVCC_SOURCE.md" I could fill in like 50% of it.

However, since my HTTP knowledge is very lacking, I was wondering how I can get the remaining ones filled in (maxcurrent, wakeup, status, climater). I can not use the GET method for that, but something else. I guess.

Could anyone support me with this? All sensors are comming from https://github.com/andreadegiovine/homeassistant-stellantis-vehicles

vehicles:
  - name: Peugeot208T
    type: custom
    title: Peugeot208T # display name for UI
    capacity: 50 # battery capacity (kWh)
    soc: # battery soc (%)
      source: http
      uri: http://[YOUR-HA-INSTANCE]:8123/api/states/sensor.VIN_battery
      method: GET
      headers:
        - Authorization: Bearer [YOUR-TOKEN-HERE]
      insecure: true
      jq: .state|tonumber
      timeout: 2s
    status: # optional charge status (A..F)
      source: # plugin type
      # ...
    range: # optional electric range (km)
      source: http
      uri: http://[YOUR-HA-INSTANCE]:8123/api/states/sensor.VIN_range
      method: GET
      headers:
        - Authorization: Bearer [YOUR-TOKEN-HERE]
      insecure: true
      jq: .state|tonumber
      timeout: 2s
    odometer: # optional odometer (km)
      source: http
      uri: http://[YOUR-HA-INSTANCE]:8123/api/states/sensor.VIN_milleage
      method: GET
      headers:
        - Authorization: Bearer [YOUR-TOKEN-HERE]
      insecure: true
      jq: .state|tonumber
      timeout: 2s
    climater: # optional climate status (true/false)
      source: # plugin type
      # ...
    wakeup: # optional vehicle wake up command
      source: # plugin type
      # ...
    maxcurrent: # set charger max current (A)
      source: # plugin type
      # ...

[marq24]

... IMHO: no need to provide 'odometer', 'climater', 'wakeup' or 'maxcurrent'...

for 'status' you must create a own ha template entry where you return the state: A, B or C based on the evcc documentation...

return A when DISCONNECTED
return B when somehow CONNECTED
return C when somehow CHARGING

[Brambuu]

Isn't the wakeup command used to get new data? I thought that's quite useful. Especially with Stellantis who is not that great in keeping all data up to date.

[marq24]

well - for evcc this is optional...

[marq24]

I just found some additional (detailed) info how to deal with the status:

Additional Template Sensor is need to provide EVCC vehicle status

We need to create a HA sensor that will provide the status of charging - this will be A, B, C, D, E, F as described in the evcc documentation.

Status	Code	Fzg. angeschlossen	Laden aktiv	Description
StatusA	"A"	nein	nein	Ladestation betriebsbereit, Fahrzeug getrennt
StatusB	"B"	ja	nein	Fahrzeug verbunden, Netzspannung liegt nicht an
StatusC	"C"	ja	ja	Fahrzeug lädt, Netzspannung liegt an
StatusD	"D"	ja	ja	Fahrzeug lädt mit externer Belüfungsanforderung (für Blei-Säure-Batterien)
StatusE	"E"	ja	nein	Fehler Fahrzeug / Kabel (CP-Kurzschluss, 0V)
StatusF	"F"	ja	nein	Fehler EVSE oder Abstecken simulieren (CP-Wake-up, -12V)

The original evcc code can be found here. Here is the section just for your reference:

// Status implements the api.ChargeState interface
func (v *Provider) Status() (api.ChargeStatus, error) {
    status := api.StatusNone

    res, err := v.statusG()
    if err == nil {
        switch res.Metrics.XevPlugChargerStatus.Value {
        case "DISCONNECTED":
            status = api.StatusA // disconnected
        case "CONNECTED":
            status = api.StatusB // connected, not charging
        case "CHARGING", "CHARGINGAC":
            status = api.StatusC // charging
        default:
            err = fmt.Errorf("unknown charge status: %s", res.Metrics.XevPlugChargerStatus.Value)
        }
    }

    return status, err
}

From the original Ford evcc integration it looks like that we only needs to provide status A, B or C and we can get this from the HA sensor status from sensor.fordpass_[YOUR-VIN-HERE]_elvehcharging (you need to adjust the following template sensor if you have a different sensor name).

Create the template sensor

1. Go to the HA configuration and select Configuration -> Helpers -> Add Helper
2. Select Template and in the next selection select Template for Sensor
3. Enter a name for the sensor (e.g. fordpass_[YOUR-VIN-HERE]_evcc_charging_code)
4. Enter the following template code:

   {% set val = states('sensor.fordpass_[YOUR-VIN-HERE]_elvehcharging')|upper %}{% if val == 'DISCONNECTED' -%}A{% elif val == 'CONNECTED' -%}B{% elif val == 'CHARGING' or val == 'CHARGINGAC' -%}C{%- else %}UNKNOWN{%- endif %}
   

5. Optional you can select your fordpass Vehicle as Device
6. Click OK

As alternative, you can add the following code to your template section of the configuration.yaml:

  - unique_id: template.uid_fordpass_[YOUR-VIN-HERE]_evcc_code
    sensor:
      - name: 'fordpass [YOUR-VIN-HERE] EVCC Charging code'
        unique_id: 'uid_fordpass_[YOUR-VIN-HERE]_evcc_charging_code'
        icon: mdi:state-machine
        state: >
           {% set val = states('sensor.fordpass_[YOUR-VIN-HERE]_elvehcharging')|upper %}{% if val == 'DISCONNECTED' -%}A{% elif val == 'CONNECTED' -%}B{% elif val == 'CHARGING' or val == 'CHARGINGAC' -%}C{%- else %}UNKNOWN{%- endif %}

Check if the status of the new template sensor is working

Make sure that the new created sensor sensor.fordpass_[YOUR-VIN-HERE]_evcc_charging_code will provide the correct status code (A, B or C) - you can check this in the HA Developer Tools -> States.