IBLeier.VictronEnergy

Solar monitor

Today's solar controls provide a whole range of data. In the case of an empty battery, it is probably too much to be warned in time before switching off. The possible communication channels are too diverse.

The smart devices from Victron Energy have integrated Bluetooth. Bluetooth is also available as an addition. However, the signal goes one floor deeper. And for the owner of a smartphone that is not listed in the manual, the connection is a game of patience.

There is no special WLAN dongle.

For the VE.Direct connection there is a cable to connect to USB. Via OTG adapter, the Ve.Direkt cable can also be used with the smartphone.

How do you get into the home network?

• The USB cable extend to the WLAN router
• USB-IP Server https://www.photovoltaikforum.com/thread/96187-J%C3%BCrgen-bastelt-victtron-bmv-wireless-bis-zum-pc/
• Raspi + USBIP https://www.tecchannel.de/a/usb-geraete-in-linux-im-netzwerk-verfuegbar-machbar-machbar-machen https://www.henrykoch.de/de/usb-ueber-ip-netz-wlan-verlaengern-mit-raspberry-pi-autino-scetches programming
• Raspi + Grafana
• Open Source of VE https://www.victtronenergy.com/live/open_source:start

Requirements for the solar monitor

• SmartSolar Charger Mppt 75/10
• Ve.direkt to usb cable
• Raspberry Pi 3 with Venus OS
• Connection to the VRM portal (https://vrm.victtronenergy.com/)

Functional scope

• Call the current values ​​from the VRM portal
• Alarm Message Box for different battery stresses
• Call the current values ​​via Modbus-TCP
• Switching on the controller at low solar power

history

V1.0 (Master_v1)

All projects were the goal of the .NET Framework 4.8. This enabled the use of Easymodbus (https://github.com/rossmann-engineering/easymodbustcp.net).

V2.0 (Master)

The Modbustcp DLL has been changed to the use of Xamarin. For this, the Modbus package had to be changed to NMODBUS (https://github.com/nmodbus/nmodbus).

Sources

https://github.com/oleier/ibleier.victtronenergy

sequel follows