See it live

No internet. No phone signal. Still talking.

Messages that travel by mountain.

MayoMesh is a volunteer-run radio network. Small LoRa repeaters on hilltops pass your text from peak to peak across Mayo and the west — free, encrypted, and off-grid.

Get on the mesh in an eveningComing from Meshtastic? →
youa friend, far away

How a message gets across Mayo

  1. You type on your phone

    The MeshCore app hands it over Bluetooth to your pocket radio — a companion node.

  2. It reaches a hilltop

    A solar repeater on a nearby summit hears it, kilometres away.

  3. Peaks pass it on

    Repeaters relay it along a learned path — some links span over 100 km.

  4. Your friend's radio buzzes

    End-to-end encrypted. No SIM, no subscription, no tower.

Get started

Full beginner guide →
  1. Step 1

    Pick a radio

    A Heltec V4 is the easiest first device. Planning a solar repeater? Start with a RAK4631.

  2. Step 2

    Flash MeshCore

    In Chrome or Edge with the MeshCore web flasher. Choose Companion firmware for your first device.

  3. Step 3

    Set the EU/UK Narrow preset

    869.618 MHz, SF8, BW62.5, CR8 — every node must match, or you'll hear nothing.

  4. Step 4

    Say hello

    Join #ireland or #mayo — the Public channel is busy with traffic from the UK.

The mesh, right now

Connecting…

Live packets between repeaters. Personal radios are never shown.

Open the live map →

Coming from Meshtastic?

MeshCore uses dedicated repeaters and more structured routing — built for fixed networks across a county. It runs on many of the same boards, and we still run Meshtastic too.

How the two differ

Host a repeater

Got a high roof, a hill, or a friendly farmer? Setting up a repeater at a good location is the single biggest contribution you can make to Irish coverage. Check where the gaps are first.

See the coverage map →