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victrosaurius avatar image
victrosaurius asked

RPi 4 : how much memory?

Hi

I'm about to buy a RPi 4, but got undecided on the memory version.

Which one should I buy? 4Gb or 8Gb?


It will be used only for the Victron / electric stuff in my RV, as I'm considering having something else to run Home Assistant.


Thank in advance.

Venus OSRaspberry PiHelp
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4 Answers
bathnm avatar image
bathnm answered ·

On my Cerbo GX with NodeRed running this is what the system is saying..

MemTotal:        1030084 kB
MemFree:          392744 kB

On my PI 8Gb this is what is being reported. Note it is running SignalK and NodeRed.

MemTotal:        8086736 kB
MemFree:         7203656 kB

So a 2Gb system for most stuff will be fine.

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pcurtis avatar image
pcurtis answered ·

Pi 3B+ 1 Gbyte memory - my active system on my narrowboat running Node-RED OS v2.92screenshot-from-2022-11-13-16-22-22.png

Pi 4B 2 Gbytes memory running my Node-RED Development system OS 3.0~4

screenshot-from-2022-11-13-16-23-49.png


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bathnm avatar image
bathnm answered ·

I believe the CerboGX devices is 1Gb, so anything greater than that will be fine.

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Kevin Windrem avatar image
Kevin Windrem answered ·

Running other software along with Venus OS code is not recommended. Plan on another Raspberry PI for those other "electric stuff".

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victrosaurius avatar image victrosaurius commented ·
Thanks for the heads up!

In this case it's non Victron stuff (like JK BMS) interfacing with Victron stuff (GX device), and maybe some temperature nodes.


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Related Resources

Victron Venus OS Open Source intro page

Venus OS GitHub (please do not post to this)

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