this post was submitted on 01 Apr 2026
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Meshtastic

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Do you have to be always connected to your node? (mander.xyz)
submitted 2 days ago by podbrushkin@mander.xyz to c/meshtastic@mander.xyz
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  1. Power on your node in the morning. It is not connected to any smartphone or PC via BT/USB/HTTP;
  2. In the evening, connect to it via BT/USB/HTTP;
  3. Access all messages received in Primary channel and/or DMs.

Is it possible? How many messages does a node store in it's internal memory? How to access them via terminal? If node is restarted, are they erased?

I have a Heltec V3. In Meshtatsic CLI there's --listen option, but it's about receiving new packages in real time.

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[–] IcedRaktajino@startrek.website 1 points 2 days ago (1 children)

AFAIK, yes, memory. There are a lot more packets than just text messages. Telemetry, node info, positions/waypoints, etc.

[–] podbrushkin@mander.xyz 0 points 2 days ago* (last edited 2 days ago) (1 children)

There are standalone devices with integrated keyboard for typing messages. I'd expect them to be able to store a lot of messages, regardless of firmware version. Imagine someone sent 7 "test" messages to Primary channel and thus wiped your DM's. Doesn't feel right.

What about MeshCore, can it operate as a mailbox? Mailbox mode will be extremely convenient.

[–] shortwavesurfer@lemmy.zip 1 points 1 day ago (1 children)

No, it's a hardware limitation. There's only so much memory on these little devices, and once it's full, it starts replacing old messages.

[–] podbrushkin@mander.xyz 1 points 1 day ago

I wonder how many messages can it store. I will try leaving my node for a day and will see timestamp of earliest messages and how many there are. Also, maybe it worth checking out firmware source code. Different devices can have different limit.