Saitama

Standalone MeshCore messenger for the T-Deck Plus: chats, contacts and offline maps with no phone at all.

LilyGO T-DeckNo solderingAbout 5 minLicense GPL-3.0-onlySource on GitHub

What you need

Board: LilyGO T-Deck
Parts: microSD card

Saitama turns the T-Deck Plus into a standalone MeshCore messenger. Encrypted channels and direct messages, a live list of stations around you, offline maps from the microSD card and repeater tools all run on the device, with the touch screen, keyboard and trackball. Original project by 868meshbot on GitHub, GPL-3.0. Chipnik hosts the release binaries unchanged so you can flash them from the browser.

Saitama speaks the MeshCore protocol, so it chats with phones running the MeshCore companion firmware. Offline maps are tiles that you copy to the microSD card; the project README explains how to make them.

Firmware files come from the v1.6.2 release.

Parts

Buy everything for this project

LilyGO T-DeckBuyLilyGO
Buy on AliExpress

1 ×microSD cardoptional, for offline maps and music

After flashing

The board restarts by itself when flashing is done.
If nothing happens, press the RST (EN) button once.

Flashing failed or the board behaves oddly

Versions

1.6.2 added to Chipnik 2026-11-05

Release v1.6.2 of 868meshbot/Saitama, files unchanged. Release notes on GitHub

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