noah-mqtt

UNDER CONSTRUCTION!

Fetches data and metrics of your Growatt Noah 2000 home battery for balcony power plants and publishes it to MQTT to be consumed in Home Assistant or other applications. The application supports Home Assistant auto-discovery, so your Noah devices should appear automatically.

Run with docker

To run the latest version make sure you have Docker installed. Execute the following command:

docker run --name noah-mqtt -e GROWATT_USERNAME=myusername -e GROWATT_PASSWORD=mypassword -e MQTT_HOST=localhost -e MQTT_PORT=1883 ghcr.io/mtrossbach/noah-mqtt:latest

Provide values for GROWATT_USERNAME, GROWATT_PASSWORD, MQTT_HOST, MQTT_PORT. The application will then connect to your MQTT broker and fetch all metrics and data for all your Noah devices in your account.

Build and Run

To build the application, make sure to have a current version of Go installed on your machine.

go build -o noah-mqtt cmd/noah-mqtt/main.go

Don't forget to specify your configuration using the environment variables when you run the application.

GROWATT_USERNAME=username GROWATT_PASSWORD=mypassword MQTT_HOST=localhost MQTT_PORT=1883 ./noah-mqtt

Provide values for GROWATT_USERNAME, GROWATT_PASSWORD, MQTT_HOST, MQTT_PORT. The application will then connect to your MQTT broker and fetch all metrics and data for all your Noah devices in your account.

Configuration

Use the following environment variables to configure noah-mqtt:

Environment Variable	Description	Default
LOG_LEVEL	Log-level for the application	INFO
POLLING_INTERVAL	Interval between new data is fetched in seconds	10
GROWATT_USERNAME	Username for your Growatt account (required)	-
GROWATT_PASSWORD	Password for your Growatt account (required)	-
MQTT_HOST	MQTT broker host (required)	-
MQTT_PORT	MQTT broker port	1883
MQTT_CLIENT_ID	MQTT client id	noah-mqtt
MQTT_USERNAME	MQTT username	-
MQTT_PASSWORD	MQTT password	-
MQTT_TOPIC_PREFIX	MQTT base topic	noah2mqtt
HOMEASSISTANT_TOPIC_PREFIX	HomeAssistant base topic	homeassistant