pv-dashboard

Custom made logging with dashboard for photovoltaic systems

• logging via RS485
• database: sqlite3
• dashboard: streamlit

specs

PV system

• panels: 132x Schüco MPE 185 MS 06 (185W)
• inverter: 4x Schüco SGI 4500 plus, 1x Schüco 3500 T plus 02
• commissioning date: 2011

hardware

• Banana Pi BPI-M1 with armbian
• RS485 to USB converter: YYH-256 (MAX485, CH340)

Getting started

1. clone repo
   git clone https://github.com/yannikmotzet/pv-dashboard.git

2. install Python dependencies
   pip install -r requirements.txt

3. create and start services

• logger:

  sudo vim /etc/systemd/system/pv-logger.service

  [Unit]
  Description=PV logger daemon
  
  [Service]
  WorkingDirectory=/home/pi/pv-dashboard/
  User=pi
  ExecStart=/usr/bin/python3 logging/logger_daemon.py
  Type=simple
  
  [Install]
  WantedBy=multi-user.target
  

  sudo systemctl enable pv-logger.service

• dashboard:
  sudo vim /etc/systemd/system/pv-dashboard.service

  [Unit]
  Description=PV Dashboard (Streamlit)
  
  [Service]
  WorkingDirectory=/home/pi/pv-dashboard/
  User=pi
  ExecStart=python3 -m streamlit run dashboard/main.py --browser.gatherUsageStats False
  Type=simple
  
  [Install]
  WantedBy=multi-user.target
  

  sudo systemctl enable pv-dashboard.service

knowledge pool

• TechCrawler - dd-wrt Logger per RS-485 an Kaco Wechselrichter
• photovoltaikforum - RS485 Protokoll KACO Powador Wechselrichter
• plieningerweb/kacors485