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MeshCore

Lightweight LoRa mesh messenger with fixed repeaters: chats and channels that reach far with little airtime.

Chipnik catalog@chipnik-catalog
Heltec WiFi LoRa 32 V3LilyGO T-BeamLilyGO T-DeckSeeed XIAO ESP32S3nice!nanoNo solderingAbout 10 minLicense MITSource on GitHub

What you need

Board
One of 5 boards: Heltec WiFi LoRa 32 V3, LilyGO T-Beam, LilyGO T-Deck and 2 more
Parts
LoRa antenna for your region

MeshCore is a LoRa mesh for text chats. Only dedicated repeaters pass messages along, while phones and handhelds just send and receive, so the network wastes less airtime and reaches further than a flood mesh. This is the companion radio firmware: the board pairs with the MeshCore app on your phone over Bluetooth. Original project by the MeshCore team on GitHub, MIT. Chipnik hosts the release binaries unchanged so you can flash them from the browser.

The companion firmware talks to the official MeshCore app on Android and iOS. Repeater and room server firmwares come in separate releases of the same project.

The nice!nano build is the ProMicro DIY node with an SX1262 module wired to it.

Firmware files come from the companion-v1.18.0 release.

Parts

Buy everything for this project
1 ×LoRa antenna for your regionnever power the radio without it

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

1.18.0 added to Chipnik 2026-11-05

Release companion-v1.18.0 of meshcore-dev/MeshCore, files unchanged. Release notes on GitHub

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MeshCoreFlash it