Add charge_current_request and charge_current_request_max to MQTT topics

[pkuehnel]

I created a service to adjust multiple car's current based on PV production in combination with TeslaMateApi. I have an issue when the car does not use all the power it requests (e.g. battery nearly at 100%, or car is only preconditioning but not charging). It would help me a lot if you could add charge_current_request and charge_current_request_max to the MQTT topics. Call to Tesla API is https://owner-api.teslamotors.com/api/1/vehicles/vehivleId/data_request/charge_state. I am not that deep into Elixir, so I can not do that on my own. Anyone here who can create a PR?

[pkuehnel]

@adriankumpf My software already exists (in very early stages: pkuehnel/SmartTeslaAmpSetter) but it is really critical for it that there are MQTT topics for charge_current_request and charge_current_request_max. Can you please add these two?

[adriankumpf]

Hi @pkuehnel, I've added those two topics in a8bcb90.

[migube]

HI guys
I'm currently running both a smart meter setup, gathered in Home assistant, and teslamate in docker.
Do I understand that the charge_current_request MQTT topic will allow to read the values, but Teslamate will not allow (yet?) to write/change the charging_amps paramater?
There is an home assistant custom integration https://community.home-assistant.io/t/optimizing-use-of-unused-solar-power-to-charge-a-tesla/340818 that I could use, but I'd prefer to have it all via teslamate.
Potentially, with pkuehnel extra sw ?

Any thoughts how to achieve the same results from home assistant easily via Teslamate (and if yes how/by when? :-)
tx!

[pkuehnel]

You can use my software if you want to charge solar power, or https://github.com/tobiasehlert/teslamateapi if you just want so change current via API request.

[migube]

hi pkuehnel

ok so just installed it, and installed postman to generate some test POST URl's

it looks like most without parameters do work, do I have issues with parameters

e.g opening the trunk keeps saying i didn't provide the parameter

while e.g. command/set_charge_limit?percent=75
{
"response": {
"reason": "",
"result": true
}
}

but eventually it sets it to 50% ?! (same with other values...)

do u have some postman examples to be sure it's not me?
tx already!

[pkuehnel]

As I am on my phone, I only can send you a screenshot. You have to send the variables as serialized Json in your request body.

[migube]

that seems to do the trick !
tx again, will then star playing with Home assistant Json tests :) & let u know
merci !