twc3teslamate (Tesla Wall Connector 3 Teslamate output)

This program simulates the API output of a Tesla Wall Connector 3, using data obtained from Teslamate. Checks the car's geofence location and only sets connected/charging output to True if the vehicle is in the geofence location (default "Home")

I use this as a workaround to get evcc working with the mobile charger, as evcc requires a proper charger. The twc3 template is special because it lets evcc use Tesla's own api to start/stop and adjust the current level.

Adapted from laenglea/twc3simulator, MQTT subscription code from letienne/teslamate-abrp

requirements

Teslamate setup with MQTT integration (default MQTT publishing path)
a MQTT broker
Docker

Installation

via docker:

docker run --name twc3teslamate -p 80:80 -e MQTT_HOST=mosquitto ghcr.io/haveacry/twc3teslamate

where MQTT_HOST is the hostname or IP of your MQTT broker where teslamate logs data.

or as part of your teslamate/evcc compose so you could access it via port 80 without exposing this port at all just with the name of the container

    version: "3"
    services:
      teslamate:
        image: teslamate/teslamate:latest
        restart: always
        environment:
          - ENCRYPTION_KEY=secretkey #replace with a secure key to encrypt your Tesla API tokens
          - DATABASE_USER=teslamate
          - DATABASE_PASS=password #insert your secure database password!
          - DATABASE_NAME=teslamate
          - DATABASE_HOST=database
          - MQTT_HOST=mosquitto
        ports:
          - 4000:4000
        volumes:
          - ./import:/opt/app/import
        cap_drop:
          - all

      database:
        image: postgres:16
        restart: always
        environment:
          - POSTGRES_USER=teslamate
          - POSTGRES_PASSWORD=password #insert your secure database password!
          - POSTGRES_DB=teslamate
        volumes:
        - teslamate-db:/var/lib/postgresql/data

      grafana:
        image: teslamate/grafana:latest
        restart: always
        environment:
          - DATABASE_USER=teslamate
          - DATABASE_PASS=password #insert your secure database password!
          - DATABASE_NAME=teslamate
          - DATABASE_HOST=database
        ports:
          - 3000:3000
        volumes:
          - teslamate-grafana-data:/var/lib/grafana

      mosquitto:
        image: eclipse-mosquitto:2
        restart: always
        command: mosquitto -c /mosquitto-no-auth.conf
        # ports:
        #   - 1883:1883
        volumes:
          - mosquitto-conf:/mosquitto/config
          - mosquitto-data:/mosquitto/data

      evcc:
        command:
          - evcc
        container_name: evcc
        image: evcc/evcc:latest
        ports:
          - 7070:7070/tcp
          - 8887:8887/tcp
          - 7090:7090/udp
          - 9522:9522/udp
        volumes:
          - /etc/evcc.yaml:/etc/evcc.yaml
          - /home/[user]/.evcc:/root/.evcc
        restart: unless-stopped

      twc3teslamate:
        container_name: twc3teslamate
        image: ghcr.io/haveacry/twc3teslamate
        environment:
          - MQTT_HOST=mosquitto
	ports:
          - 8080:80
        restart: unless-stopped

    volumes:
      teslamate-db:
      teslamate-grafana-data:
      mosquitto-conf:
      mosquitto-data:

Environment variables

Variable	Description	Default
MQTT_HOST	hostname or IP of MQTT broker	None
MQTT_PORT	MQTT broker port	1883
MQTT_USERNAME	Username for MQTT broker (optional)	None
MQTT_PASSWORD	Password for MQTT broker (optional)	None
TESLAMATE_CAR_ID	Teslamate car ID (where multiple cars in account)	1
TESLAMATE_GEO_HOME	Teslamate Geofence name where car is charged	"Home"
TESLAMATE_NAMESPACE	Teslamate MQTT namespace	None

EVCC configuration

Setup a TWC3 charger and use the name of the twc3teslamate container (if in the same stack) or the IP address the container is exposed on, that is accessible from EVCC

  chargers:
  - name: TWC
    type: template
    template: twc3
    host: twc3teslamate # IP address or hostname

run it

to run it native you have to first install the requirements with pip or your package manager

native:

pip3 install -r requirements.txt
sudo uvicorn app.main:app --reload --host 0.0.0.0 --port 80

validate

if it's running properly you should get something back when looking at

http://IP_ADDRESS(:port)/api/1/vitals