Solarmon

A simple Python Script for reading Growatt PV Inverter Modbus RS485 RTU Protocol and storing into InfluxDB

Protocol Documentation: http://www.growatt.pl/dokumenty/Inne/Growatt%20PV%20Inverter%20Modbus%20RS485%20RTU%20Protocol%20V3.04.pdf

How to use

• Some hardware running a Linux based OS with Python 3 (eg. Raspberry Pi)
• Connect your Linux based OS to the RS485 port on the inverter via a RS485 to USB cable
• Install InfluxDB
• Copy solarmon.cfg.example to solarmon.cfg and modify the config values to your setup as needed
• Run pip install -r requirements.txt
• Run python solarmon.py in a screen (or you could setup a service if that is your preference)
• Install Grafana
• Go to http://localhost:3000/dashboard/import or equivalent for where you installed Grafana and import grafana/dashboard.json