MeshCore, a new lightweight, hybrid routing mesh protocol for packet radios

by cuu508 • 1 year ago

101 32 1 year ago

sparrish2• 1 year ago

I don't understand how this is different from Meshtastic. Can someone compare and contrast?

so far it seems like better routing protocol, the ability to set what path your packets take if needed, and some different ideas about roles on the network. i’ve been playing with it for a week or so and people at my hackerspace have been contributing and i’m excited to see how it does, but it’s not good enough to the point where everyone is just going to switch over. some board support and polish needed before that happens imo

aeblyve2• 1 year ago

Meshtastic has unicast next-hop routing since firmware version 2.6 released, like, a week ago.

apitman4• 1 year ago

Unlike Meshtastic, which is tailored for casual LoRa communication, or Reticulum, which offers advanced networking, MeshCore balances simplicity with scalability, making it ideal for custom embedded solutions., where devices (nodes) can communicate over long distances by relaying messages through intermediate nodes

sparrish2• 1 year ago

Yeah... that doesn't say anything. "Advanced networking"?

Meshtastic can also communicate over long distances by relaying through other nodes.

So what's the difference?

bb882• 1 year ago

Meshtastic's routing system (up until this last version), wasn't great. I haven't tried the latest version, because it's gonna need to take a while for people to update their firmwares.

Also, a lot of nodes tend to flood their battery state for the entire network, which uses up the airtime for something that could be more important like routing information, and also wastes their battery.

Even though things like AlohaNet have been around for years, Meshtastic chose to reinvent the wheel. The primary difference is that Meshcore started with "routing" first, and then save the airtime and therefore battery for routing messages.

geerlingguy did a video on it, and it's highly worth while checking it out. I think he was kind enough to use the term "Beta".

Supposedly the new firmware from Meshtastic fixes a lot of this, but it's gonna be a while for people to upgrade, and I'm not too keen on wasting time again on something if it's not fit to work for it's stated purpose originally.

apitman4• 1 year ago

Really excited about all the new mesh networking protocols being worked on. As mentioned in the repo, also check out Meshtastic and Reticulum.

Would love to see something like this for Bluetooth/wifi. Maybe Wifi Aware will be that.

I think local-first networking is going to be an important part of local-first apps.

dfc• 1 year ago

Reticulum will work over wifi.

ThinkBeat• 1 year ago

In so far as communicating without going via the internet. This would work by 2 or more people sharing the same wifi network, but they they talked to each other would be over Reticulum?

Can a wifi mesh with no internet connection be made between different routers / access points?

Really I am wondering if people cooperating by operating wifi areas t could expand quickly in more populated places.

Perhaps the trick would be to run them all the wifi networks fully open?

Yeah basically how does one create a city wide mesh with a few hundred people involved?

apitman4• 1 year ago

How's the UX? I'm looking for something along the lines of my device uses bluetooth to scan for local devices, I select the ones I want to form a mesh with, the owners of those devices confirm, then we're in a hi-speed wifi mesh.

recrof• 1 year ago

MeshCore also works via esp-now

brunoqc• 1 year ago

Is radio like LoRa actually usable for useful things like file transfer, or is it more like a toy?

appleaday1• 1 year ago

peopple have done loop to loop picture or video transfers so far, but usually higher bandwith is better, Lora supports 2.4ghz so probably do able in that range

aeblyve2• 1 year ago

"It depends". Out-of-the-box Meshtastic configurations are tailored more for relatively infrequent and short plaintext messages. You can look at nominal data rates here: https://meshtastic.org/docs/overview/radio-settings/#data-ra...

It is intentionally designed for longer range, with lower datarates, with lower power consumption. It's in the name. "LOng RAnge".

Not to be too annoying but "Radio like LoRa" reads to me as "microwave" which includes "WiFi" which is plausibly something you use for file transfer all the time. So some more clarification would be helpful.

0x1ch• 1 year ago

Out of the box, it can be useful depending on the infrastructure of your area. I live in the Seattle area and we have a strong Meshtastic network here. I can occasionally even can see ACKs / testing from Vancouver CA. I own a node that sits at home all day and there's always messages being received in the public LongFast channels. The protocol makes use of all nodes for any type of messaging, so private channels also benefit.

As for files, not possible out of the box for most people, but tools like ATAK-Civ can make use of 'data packages' and send them over radio. I've used it to successfully send memes and map files in testing.

linker30004• 1 year ago

A few people have implemented file transfers over Meshtastic. I believe there's a repo out there with Zmodem over Meshtastic.

Rebelgecko• 1 year ago

It's not ideal for file transfer due to low speeds. But it's great for things like having a bunch of battery powered sensors in a field somewhere that report some telemetry every hour. Or in the meshtastic case, sharing your location and short text messages in areas without cell service.

zdp7• 1 year ago

A big use for LoRa is sensor telemetry. Anything with low data speeds and are impractical to cover with a wired or Wi-Fi connections. Perfect for Ag and remote monitoring. Definitely not just a toy.

jeffhuys2• 1 year ago

There’s a lot of space between “file transfer” and “toy”.

If power goes out, or the internet, or both, I can still contact my entire family spread all around my city, because I gave them all a node to set up in their attic / on their roof. Additionally, they all got a t-deck charged and ready to go.

When shit hits the fan, at least we can find each other.

theshrike79• 1 year ago

LoRa is optimised for low power usage and range. Not for moving 1TB 4k videos over the air.

So if you want to move your home videos from one place to another, or if you want to have a wireless security camera with 1080p streamed video, it's the wrong choice.

But if you want to have a battery powered motion detector + environment sensor in an off grid shed 1km that way, LoRa is perfect for that.

For example: I have a Meshtastic device in my car with a small 18650 battery + plugged in to the car's USB that charges it when it's turned on. It reports the car's location and internal temperature to a Meshtastic channel. It also works as a router so if I'm inside a store with my T1000-E, it can't reach the local relay, BUT it can reach my car, which in turn can reach the relay, which again is in range of my home node - which is connected to Home Assistant.

Yes, I could just send an IM, but where's the fun in that? =)

Calwestjobs• 1 year ago

meshtastic plans to support more radios then only LoRa so worth updating,

so for example you can use esp32 lora node not only for lora low bandwidth comms but also high speed wifi transfers, for example pictures of intruders !

no just joking.

MeshCore, a new lightweight, hybrid routing mesh protocol for packet radios

Related Stories