Anyone else using a Raspberry Pi to log their Victron data locally?

by ExJoiner9 · 2 weeks ago 53 views 5 replies
ExJoiner9
ExJoiner9
Member
6 posts
Joined Apr 2024
2 weeks ago
#24031

Been running a Pi 4 with VenusOS for about 18 months now and it's been rock solid. Replaced the Cerbo GX I was going to buy and saved myself a decent chunk of cash in the process.

Got it pulling data from my Multiplus-II and MPPT controllers via VE.Direct cables, then pushing everything into InfluxDB with Grafana on top. The dashboards are genuinely brilliant — way more granular than the standard VRM portal, and crucially it all stays local even when my internet goes down.

For my setup (garden office + EV charging), being able to see exactly when the battery hits certain thresholds and correlating that with car charging sessions has been really useful for tweaking my schedules. I've got Node-RED in the mix as well for some basic automation — cuts grid import when solar production drops below a certain point.

A few things worth mentioning if you're just starting out:

  • VenusOS Large is the image you want — it includes the Signal K and Node-RED stuff baked in
  • VE.Direct to USB cables are fiddly to source sometimes; Victron's own ones are worth the premium
  • Give the Pi a decent power supply — a cheap one will cause you grief

The community-built dashboards on GitHub are a good starting point rather than building from scratch. mr-manuel has a solid Grafana template that I modified for my own needs.

Anyone else gone down this rabbit hole? Curious what monitoring setups others are running and whether anyone's managed to integrate Shelly plugs or similar into the same stack.

Border Wanderer
Border Wanderer
Active Member
12 posts
thumb_up 4 likes
Joined Jun 2024
2 weeks ago
#24066

Running VenusOS on a Pi 3B+ on the boat for two years and the only time it's gone wrong is when I've touched it.

Battery Paula
Battery Paula
Active Member
46 posts
thumb_up 19 likes
Joined Jan 2024
1 week ago
#24082

@BorderWanderer that rule applies to literally every piece of kit in my shepherd's hut — works perfectly until I get involved 🔧

Running a Pi 4 with a Fogstar battery bank and the local logging is the best thing I ever did; turns out knowing exactly when your batteries are sulking is more useful than guessing in the dark like some kind of medieval peasant.

LiFePO4Nerd
LiFePO4Nerd
Senior Member
141 posts
thumb_up 80 likes
Joined Apr 2023
1 week ago
#24103

Been running this exact setup in the motorhome for the past year — Pi 4 with VenusOS large, feeding into InfluxDB and Grafana. The dashboards I've built show every amp going in and out of my Fogstar Drift cells in real time, which is genuinely addictive to watch on a rainy Welsh layby.

One thing I'd flag that nobody's mentioned: power the Pi from a quality DC-DC converter, not a cheap USB charger. I lost three days of data when a dodgy £4 converter browned out mid-night. Now running a Victron Orion-Tr 12/5 and it's been bulletproof.

Also worth enabling the remote console over VPN through VRM portal — means you get some remote access without exposing the Pi directly, which I was skeptical about initially but it's actually implemented sensibly.

Amy Chapman
Amy Chapman
Active Member
13 posts
Joined Apr 2025
1 week ago
#24135

@BatteryPaula same energy in my shepherd's hut — the Victron gods demand you walk past it smugly and never, ever open the app while guests are staying 🐑⚡

Tommo30
Tommo30
Member
9 posts
thumb_up 1 likes
Joined Mar 2025
1 week ago
#24164

Been running a similar setup but with a Pi 3B+ rather than a Pi 4 — surprised how well it holds up honestly. One thing worth mentioning that I haven't seen covered: if you're pushing data into InfluxDB like @LiFePO4Nerd, have a think about your retention policies early on. I naively kept everything at full resolution and filled up a 32GB card within about eight months. Now I downsample anything older than a fortnight and it's much more manageable. Also worth setting up a cron job to back up your Grafana dashboard configs to a USB stick — learned that the hard way after a corrupted card wiped three months of dashboard tweaking. The data itself was fine (replicated elsewhere) but rebuilding those panels from scratch was a proper afternoon wasted.

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