# Meshtastic

The official firmware for Meshtastic, an open-source, off-grid mesh communication system.

Repository: https://github.com/meshtastic/firmware
Canonical: https://ross.abutalabs.com/products/meshtastic
Homepage: https://meshtastic.org
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: gps, lora, hiking, ttgo-tbeam, heltec, meshtastic, ttgo, esp32, nrf52, mesh-networks, off-grid, mesh, pico, rp2040, stm32
Last push: 2026-08-26T23:36:55+00:00
Link (homepage): https://meshtastic.org
Link (site_page): https://meshtastic.org/docs/introduction
Link (site_page): https://meshtastic.org/docs/getting-started
Link (site_page): https://meshtastic.org/docs/software/python/cli
Link (site_page): https://meshtastic.org/docs/legal

## Health v2 (maintenance only)
Score: 96/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 90, longevity 100
- inputs: {"age_days": 2405, "days_push": 7, "days_rel": 70, "gap_med": 8.0, "n_releases_24m": 17}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8212, forks 2682 (observed 2026-08-28T04:10:19.596299+00:00)

## What it is
Meshtastic is an open-source, off-grid mesh communication system that runs on inexpensive LoRa radios, enabling long-range encrypted text messaging, GPS location sharing, and telemetry without internet or cellular infrastructure. This repository contains the official device firmware supporting ESP32, nRF52, RP2040/RP2350, STM32, and Linux-based hardware, with companion clients for Android, iOS, web, and a Python CLI/SDK.

## Use cases
- communicate off-grid while hiking without cell service
- set up a decentralized mesh network with LoRa radios
- share GPS locations with a group in remote areas
- emergency communication when infrastructure is down
- send encrypted text messages over long distances without internet
- flash firmware onto ESP32 or nRF52 LoRa boards
- monitor telemetry from remote sensors over a mesh

## When to choose
- you need long-range, low-power communication with no cell towers or internet
- you want encrypted, decentralized messaging on affordable hobbyist hardware
- you're preparing emergency or outdoor communication kits
- you want an open-source, community-driven mesh radio project with broad device support

## When to avoid
- you need high-bandwidth data like voice calls, video, or large file transfers
- you require certified, regulator-tested devices for safety-critical use
- you need guaranteed message delivery or low-latency communication
- you want a turnkey commercial solution with vendor support

## Facets
- artifact type: application
- maturity: active
- function: networking, p2p, cryptography, embedded, iot, cli, sdk
- domain: networking, embedded-systems, privacy, iot, hardware, censorship-circumvention
- platform: embedded, iot, python, cross-platform, cli
- tags: lora, mesh-networking, off-grid, firmware, gps, radio, emergency-communication, hiking, esp32, nrf52, rp2040, stm32, decentralized, linux, android, ios

## Member repositories
- meshtastic/firmware (main) score 96
- meshtastic/meshtastic (docs) score 77
- meshtastic/Meshtastic-Android (frontend) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:19.596299+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:29:32.536877+00:00, confidence not recorded.
  - readme: https://github.com/meshtastic/firmware (fetched 2026-08-28T04:10:19.596299+00:00, sha b897db4327e1)
  - homepage: https://meshtastic.org (fetched 2026-08-29T08:28:32.421933+00:00, sha 811311e9648e)
  - site_page: https://meshtastic.org/docs/introduction (fetched 2026-08-29T08:28:32.430895+00:00, sha 4a512d8d601d)
  - site_page: https://meshtastic.org/docs/getting-started (fetched 2026-08-29T08:28:32.432898+00:00, sha 27e68e53e2cd)
  - site_page: https://meshtastic.org/docs/software/python/cli (fetched 2026-08-29T08:28:32.434883+00:00, sha a0d300253fc4)
  - site_page: https://meshtastic.org/docs/legal (fetched 2026-08-29T08:28:32.437180+00:00, sha bc7384c5af8d)
- Data as of 2026-08-30T08:39:29.467469+00:00.