Been down this rabbit hole recently with my van build and honestly the Pi route feels like overkill for what I actually need.
I've got a Victron SmartSolar MPPT which pairs with the VictronConnect app fine for real-time stuff, but I want proper long-term logging — trends over weeks, that sort of thing. The Victron Cerbo GX does exactly that but it's £200+ which seems steep just for data.
The Pi setup I keep seeing recommended involves:
- Raspberry Pi + VE.Direct USB cable
- Running something like Venus OS or a custom InfluxDB/Grafana stack
- Decent amount of faff to get working
Has anyone actually run Venus OS Large on a Pi and found it reliable long-term? I'm worried about SD card wear and the whole thing dying on a bumpy van journey.
Alternatively, is there a middle ground I'm missing? I came across the Victron Global Link 520 which logs to the VRM portal remotely, but that needs a SIM or WiFi constantly which isn't realistic when I'm parked up in the middle of nowhere on the South Downs.
Also curious whether anyone's doing this on a boat or tiny house with different kit entirely — Renogy gear, say — because the logging options there seem even more limited from what I can tell.
What's everyone actually running day-to-day? Is the Pi genuinely worth the setup time or does it become another thing to troubleshoot?