# iNavFlight/inav

INAV: Navigation-enabled flight control software

Repository: https://github.com/iNavFlight/inav
Canonical: https://ross.abutalabs.com/products/inav
Homepage: https://inavflight.github.io
Language: C
License: GPL-3.0
License Family: copyleft
Topics: inav, autopilot, fpv, rc, quadcopter, airplane, hacktoberfest
Last push: 2026-08-26T21:45:20+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 68, longevity 100
- inputs: {"age_days": 4191, "days_push": 7, "days_rel": 55, "gap_med": 105.0, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4199, forks 1894 (observed 2026-08-28T04:08:38.909771+00:00)

## What it is
INAV is open-source navigation-enabled flight controller firmware for drones, planes, and other RC aircraft. It provides autopilot features such as waypoint navigation, position hold, and return-to-home on a wide range of flight controller hardware.

## Use cases
- fly autonomous waypoint missions with an fpv drone
- add return-to-home and position hold to a quadcopter
- configure autopilot firmware for an rc airplane
- navigate without a compass using gps
- set up a flight controller with rangefinders and pitot tubes
- flash open source firmware on a multirotor flight controller

## When to choose
- you need GPS navigation, waypoints, or RTH on an FPV drone or RC plane
- you fly fixed-wing or multirotor aircraft and want active open-source firmware
- you want support for many flight controller boards and peripherals like optical flow and pitot tubes

## When to avoid
- you fly racing quads and want the most minimal, latency-focused firmware (Betaflight may fit better)
- you need advanced aerial-vehicle autonomy like terrain following or computer-vision navigation (Ardupilot may fit better)
- your board uses an STM32 F411 MCU, which is no longer supported in recent releases

## Facets
- artifact type: application
- maturity: active
- function: embedded, robotics, scheduling
- domain: robotics, embedded-systems, hardware, autonomous-vehicles
- platform: embedded, iot, cpp, c
- tags: flight-controller, autopilot, fpv, drones, quadcopter, gps-navigation, return-to-home, waypoints, rc-aircraft, firmware, navigation

## Member repositories
- iNavFlight/inav (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:38.909771+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 2026-08-29T18:22:33.640185+00:00, confidence not recorded.
  - readme: https://github.com/iNavFlight/inav (fetched 2026-08-28T04:08:38.909771+00:00, sha 7cf366fa715b)
  - homepage: https://inavflight.github.io (fetched 2026-08-29T09:12:50.163697+00:00, sha f267a1409e48)
- Data as of 2026-08-30T08:39:29.467469+00:00.