L—009Playground2026● Version 0.3.25 / active development

MeshCator — Mesh Messaging in Your Pocket

Messages, contacts and maps over a LoRa mesh—designed around the pager’s screen, keyboard, wheel and haptic feedback.

Edited product image of the LilyGO T-LoRa Pager showing the MeshCator boot screen

MeshCator turns the LilyGO T-LoRa Pager into a pocket companion for MeshCore. It sends direct messages, joins group channels and places contacts with shared positions on an offline map. Communication travels over the LoRa mesh without mobile data or an internet connection, provided a radio path is available.

The interface is designed specifically for the hardware rather than adapted from a phone app. Large tiles, the rotary wheel, physical keyboard and vibration motor create a compact, tactile flow for reading conversations, writing messages and moving around the map. English, German, French and Spanish are built in, alongside selectable themes and per-conversation notification settings.

Maps remain useful away from coverage. A built-in overview can be extended with detailed tiles on an SD card; shared contact positions appear on the map, while a radar view shows distance and bearing. Saved places can be followed as a direction rather than turn-by-turn navigation.

Up to 512 messages stay on the device, with an additional log available on the SD card. Bluetooth connects to the MeshCore companion app when a larger screen is useful. The firmware is developed exclusively for the LilyGO T-LoRa Pager SX1262 and includes a desktop simulator for testing the interface without the device.

MeshCator home screen with colourful tiles for chats, contacts, maps and settings — L—009 / FIG. 02

MeshCator conversation view with sender, time and unread-message marker — L—009 / FIG. 03

MeshCator group conversation list with unread counters — L—009 / FIG. 04

MeshCator offline map centred on Berlin with contact markers — L—009 / FIG. 05

MeshCator radar view showing nearby contacts, distance and bearing — L—009 / FIG. 06

MeshCator emoji picker for adding symbols to messages — L—009 / FIG. 07

Open source / Repository

Source, releases and rebuild notes on GitHub.

The repository is the canonical home for the code, installation instructions, releases and issue tracking.

C++ / PlatformIOMeshCoreLoRa MeshLVGLOffline Maps

MrNash23 / MeshCorderView repository

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