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# A Docker based Home Assistant interface for MPP/Voltronic Solar Inverters
This project [was derived](https://github.com/leithhobson/skymax-demo-Original) from the 'skymax' [C based monitoring application](https://skyboo.net/2017/03/monitoring-voltronic-power-axpert-mex-inverter-under-linux/) designed to take the monitoring data from Voltronic, Axpert, Mppsolar PIP, Voltacon, Effekta, and other branded OEM Inverters and send it to a Home Assistant MQTT server for ingestion...
This project [was derived](https://github.com/manio/skymax-demo) from the 'skymax' [C based monitoring application](https://skyboo.net/2017/03/monitoring-voltronic-power-axpert-mex-inverter-under-linux/) designed to take the monitoring data from Voltronic, Axpert, Mppsolar PIP, Voltacon, Effekta, and other branded OEM Inverters and send it to a [Home Assistant](https://www.home-assistant.io/) MQTT server for ingestion...
The program can also receive commands from Home Assistant (via MQTT) to change the state of the inverter remotely.
By remotely setting values via MQTT you can for example, change the power mode to '_solar only_' during the day, but then change back to '_grid mode charging_' for your AGM batteries in the evenings - But if it's raining (based on data from your weather station), Set the charge mode to `PCP02` _(Charge based on 'Solar and Utility')_...
By remotely setting values via MQTT you can implement many more complex forms of automation _(triggered from Home Assistant)_ such as:
- Changing the power mode to '_solar only_' during the day, but then change back to '_grid mode charging_' for your AGM or VLRA batteries in the evenings, but if it's raining (based on data from your weather station), set the charge mode to `PCP02` _(Charge based on 'Solar and Utility')_ so that the following day there's plenty of juice in your batteries...
- Programatically set the charge & float voltages based on additional sensors _(such as a Zigbee [Temperature Sensor](https://www.zigbee2mqtt.io/devices/WSDCGQ11LM.html), or a [DHT-22 + ESP8266](https://github.com/bastianraschke/dht-sensor-esp8266-homeassistant))_ - This way if your battery box is too hot/cold you can dynamically adjust the voltage so that the batteries are not damaged...
- Dynamically adjust the inverter's "solar power balance" and other configuration options to ensure that you get the most "bang for your buck" out of your setup...
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The program is designed to be run in a Docker Container, and can be deployed on a lightweight SBC next to your Inverter (i.e. an Orange Pi Zero running Arabian), and read data via the RS232 or USB ports on the back of the Inverter.
![Example Lovelace Dashboard](images/lovelace-dashboard.jpg "Example Lovelace Dashboard")
_Example: My "Lovelace" dashboard using data collected from the Inverter._
_Example #1: My "Lovelace" dashboard using data collected from the Inverter & the ability to change modes/configuration via MQTT._
![Example Lovelace Dashboard](images/grafana-example.jpg "Example Grafana Dashboard")
_Example #2: Grafana summary allowing more detailed analysis of data collected, and the ability to 'deep-dive' historical data._
grafana-example.jpg
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