Dashboard for an E3/DC Home Power Station

The dashboard visualizes data from a home power station by subscribing to MQTT topics published by rscp2mqtt.

Docker

Instead of installing the package, you can simply use an existing Docker image.

Prerequisites

• a running rscp2mqtt instance (https://github.com/pvtom/rscp2mqtt), v3.8 or higher
• an existing MQTT broker (TLS is supported)
• an installation of Node-RED (https://nodered.org) including the modules "node-red-dashboard" and "node-red-contrib-aggregator" or
• a Docker environment on your system

Installation of the package

Please follow the installation steps on the Node-RED homepage.

Load the flow

Import the file dashboard_flow.json, adjust the broker settings in one of the mqtt nodes and deploy the changes

or

set the parameters as environment variables and start the prepare script (i.e. with bash):

export MQTT_BROKER="localhost"
export TOPIC_PREFIX="e3dc"

cp -a flows.json.template flows.json

./prepare.sh flows.json

afterwards import flows.json into NODE-RED.

These MQTT parameters are available:

• MQTT_BROKER
• MQTT_PORT
• MQTT_CLIENT_ID
• MQTT_USER
• MQTT_PASSWORD
• MQTT_USETLS
• MQTT_EMPTY_TLS_OBJ
• MQTT_TLS_CERT
• MQTT_TLS_KEY
• MQTT_TLS_CA
• MQTT_TLS_CERTNAME
• MQTT_TLS_KEYNAME
• MQTT_TLS_CANAME
• MQTT_TLS_SERVERNAME
• MQTT_TLS_VERIFYSERVERCERT
• MQTT_TLS_ALPNPROTOCOL
• TOPIC_PREFIX

Value ranges can be adjusted with the following parameters:

• MAX_SOLAR_POWER
• MAX_HOME_POWER
• MAX_GRID_POWER
• MAX_BATTERY_POWER
• MAX_STRING_POWER
• MAX_PHASE_POWER
• MAX_BATTERY_RESERVE

Access the dashboard

The dashboard will be accessible at http://<your_node_red_host>:1880/ui

The chart data is collected over the next 24 hours.