Message off-grid
Keep in touch in rural areas, on hills, at events or during an outage.
CRNCCumbria Radio & Network CommunityIndependent connections. Stronger communities.A beginner’s introduction
What is MeshCore?
MeshCore is a simple way to send messages without relying on mobile signal, Wi-Fi or the internet. It uses small, low-power radios that pass messages between one another.
The simple version
It is a neighbourhood network made from radios.
Each person has a small node—a LoRa radio that connects to the MeshCore app over Bluetooth or a cable. Nearby nodes can pass a message onwards, helping it reach further than one radio alone.
There is no central tower or server to depend on. More nodes and well-placed relays can make a local mesh stronger and extend its reach.
How a message travels
From your phone to the mesh—and beyond.
1Write in the appCompose a short message.
→2Your node sendsYour LoRa radio broadcasts it.
→3Relays helpOther nodes can pass it on.
→4It arrivesThe recipient sees it in their app.
What it can do
Useful when normal connectivity is limited—or just not available.
Build local reach
Relay nodes in good locations can help connect people over a wider area.
Keep chats private
MeshCore supports encrypted messaging and private group channels.
Getting started
Three small steps to join the mesh.
You do not need to build an entire network on day one. Start with one node, learn the app, then connect with others.
Get the app
Install the free MeshCore app on your phone or computer. It is the simple screen you use to message and manage your node.
Choose a node
A small compatible LoRa radio becomes your personal connection to the mesh. Start with one companion node; no licence or radio experience is needed to begin.
Flash and connect
Use the official web flasher to put MeshCore on the node, then pair it with the app. Follow the on-screen guide and you are ready to send messages.
Want the official instructions?MeshCore’s website includes supported hardware, downloads, guides and its web flasher.
Go to MeshCore.io ↗A practical note
Range is not a promise.
Hills, buildings, antennas, weather and where nodes are placed all affect radio coverage. Treat MeshCore as a useful complementary communication tool—not a replacement for emergency services or a guaranteed delivery system.