Add Template - Vehicle - Tessie

[djfanatix]

Tessie Template

Configured that it doesn't wake up the vehicle when polling. Interval can be set to 'always' and 1m.
Tessie server uses last available data when asleep or live data when vehicle is awake.

Tessie api can also be used to make a Tesla charger, not implemented now.

[andig]

Tessie api can also be used to make a Tesla charger, not implemented now.

That would be great- happy to help!

[manuelmrmorgado]

Amazing! Even better if you can use it with dumb chargers i/o Tesla fleet api and their recent limitations.

[djfanatix]

@andig I am not really familiar with Go language, but how to combine the api calls into 1 api call? I tried a few things, but it always fails in test.
If not possible, never mind

[bill340]

It should definitly be possible to build a charger with the commands as described here.
I have one setup with the data from teslalogger and a bluetooth proxy on a raspberry.
That should all be possible to be replaced by tessi:
https://developer.tessie.com/reference/

But I am also not able to code that in the evcc.yaml

Who can help?

[djfanatix]

I already have the charger working, that is not the problem.
I am struggling with the amount of api calls.

Or I have to rewrite everything in go language, or find a good way in yaml.
Otherwise tessie will block evcc soon

[bill340]

Can you share please?

[andig]

@djfanatix evcc should respect ETag cache headers. If you want more you can statically set cache to the desired value, see http.go.

[bartashevich]

One thing confuses me in this, if you have chargeEnable, why isn't there chargeDisable?

How will EVCC will know how to stop charging?

[bill340]

I have the part for "enable" like below.
So if it is not "enable", it will stop charging.

enable:
source: http
uri: "http://192.168.2.110:8080/api/1/vehicles/LRWYGCEKXNCxxxxxxx/command/{{if .enable}}charge_start{{else}}charge_stop{{end}}"
method: POST
body: ""

[bartashevich]

Well, that make sense. But I'm interested in a file in this Pull request for Tessie. I'm experimenting.

[bill340]

Me too... Would be very interested if someone got a custom charger with tessie already running.

[djfanatix]

Yeah I got it somehow working, but is too sketchy
It is on the limits of the http api

maybe I should rewrite in go, or clone the tesla files and replace the endpoints with Tessie.

I will try to post tomorrow the code

[bill340]

Yes, let me have a look.
I have it running with data coming from teslalogger and commands sent via a blutooth proxy.
So maybe we can get something working by comparing...

[bartashevich]

I guess something like this should do it, right?

  chargeEnable:
    source: http
    uri: https://api.tessie.com/{{ .vin }}/command/{{if .chargeenable}}charge_start{{else}}charge_stop{{end}}?retry_duration=40&wait_for_completion=true
    headers:
      Authorization: Bearer {{ .token }}
    method: POST

[djfanatix]

maybe,

you can see my code at, but I changed a few parameters for testing, so don't rely on it

https://github.com/djfanatix/evcc/edit/master/templates/definition/charger/tessie-charger.yaml

[bartashevich]

What physical charger do you use? I have Tesla Wall Connector 3

[bill340]

I use a Tesla Wall Connector 1, that is not able to be controlled by anything...
I just looked at our code. The problem is, to detect if you charge at home or not we used the location in the past.
Here is my charger with the bluetooth proxy and teslalogger.
I guess in yours we need the location as well...

chargers:

• name: TeslaLoggerWallBox
  type: custom
  status:
  source: combined
  charging:
  source: http
  uri: http://192.168.2.5:5010/currentjson/2
  jq: if .charging and .TLGeofenceIsHome then true else false end
  plugged:
  source: http
  uri: http://192.168.2.5:5010/currentjson/2
  jq: if .plugged_in and .TLGeofenceIsHome then true else false end
  enabled:
  source: http
  uri: http://192.168.2.5:5010/currentjson/2
  jq: if .charging and .TLGeofenceIsHome then true else false end
  enable:
  source: http
  uri: "http://192.168.2.110:8080/api/1/vehicles/LRWYGCEKXNCxxxxxx/command/{{if .enable}}charge_start{{else}}charge_stop{{end}}"
  method: POST
  body: ""
  maxcurrent:
  source: http
  uri: http://192.168.2.110:8080/api/1/vehicles/LRWYGCEKXNCxxxxxx/command/set_charging_amps
  method: POST
  body: '{"charging_amps": "{{.maxcurrent}}"}'
  wakeup:
  source: http
  uri: http://192.168.2.110:8080/api/1/vehicles/LRWYGCEKXNCxxxxxx/command/wake_up
  method: POST
  body: ""

[djfanatix]

depends on the use case :-)

For example:

• someone could you use to charge at a vacation house with dynamic rates.
• in Belgium we can do 'energy sharing', use your exported energy at an other location, so again vacation house, with your home solar

[bill340]

Ok, but do you really want the same behaviour at any location you are charging?
Can we somehow get the location like here:
https://developer.tessie.com/reference/get-location
And only charge when at the specific location, e.g. "home"?

[bill340]

Stupid question...
How can I test your template, as charger templates are not supported in the web configuration interface?
I have mine in the evcc.yaml

[djfanatix]

This file is not working for the moment.

If you want to test you need to build a docker image of your fork

[djfanatix]

This template (when inserting in your EVCC.yaml) will work.
When I have more time I will try to integrate it, but not possible at the moment
replace VIN and TOKEN

https://github.com/djfanatix/EVCC_templates/blob/main/tessiecharger.yml

[bill340]

Great, thank you so much. Will try asap.
This is now without the location based charging and will be used everytime I charge, regardless where it is,, right?

[bill340]

It works really good so far.
Found just one issue:
After charging stopped, the car is shown as not plugged in.

However evcc takes over charging steering now regardless where I charge.
Can you somehow implement to query the location and only control charging when e.g. saved location is "home" ?

[djfanatix]

It is just a template so not part of evcc, so you can adjust whatever you like

[andig]

You need to make the connected status condirional on being home where your evcc is (geo fencing).

[bill340]

Yes, thats exactly what I mean and how it is done in the teslalogger charger that I use. Can anyone help with that?

[djfanatix]

@andig just a noob question, the template above works.

But if try to use it in EVCC (as build in code) this line always fails:
uri: https://api.tessie.com/{{ .vin }}/command/{{ if .enable }}start{{ else }}stop{{ end }}_charging?retry_duration=40&wait_for_completion=true

The problem is that variable .enable is not passed to the if sentence, but if I try =${enable} the true/false status is passed.
Any idea on how to dynamically declare and use this variable?

[andig]

@djfanatix if I'm not mistaken, these replacements (really escaped Go template syntax) happen twice- at initialisation time and at execution time. {{ would match the former, i.e. enable does not have the right value (it should actually error imho). See util.ReplaceFormatted. It should be possible to trigger the later by using different escape sequence of {{{{ and }}}} but I have not tried this.

@GrimmiMeloni would this be something you'd be interested in digging in?