inav sensors

All the INAV sensors: are they required or optional?

INAV can use various sensors to fly drones and airplanes: gyroscopes, accelerometer, magnetometers, barometers, GPS, OpFlow, rangefinders, and airspeed. Some of them required some are recommended and some are a purely optional piece of hardware.

Here is the full list:

INAV Sensors:

Gyroscope and accelerometer

Required. The flight controller will not boot without a gyroscope and accelerometer. They are usually 2-in-1 devices (MPU6000, MPU6500, etc) that contain gyroscope and accelerometer in one package.

  • Multirotors drones: required
  • Fixed-wing airplanes: required
  • Other (boats, revers): required

Magnetometer aka Compass

For INAV, a magnetometer is an optional sensor. Airplanes does not need it at all, and multirotor drones need it only to be able to execute navigation modes: PosHold, Return To Home and all similar.

  • Multirotor drones: required for navigation modes: waypoints, position hold and return to home
  • Fixed-wing airplanes: not recommended
  • Other (boats, rovers): required for navigation modes*: waypoints, position hold and return to home

Barometer

Just like a magnetometer, a barometer is an optional sensor and is required only on multirotors for navigation modes.

  • Multirotor drones: required for navigation modes: waypoints, altitude hold and return to home
  • Fixed-wing airplanes: recommended not required for navigation modes: waypoints, altitude hold and return to home.
  • Other (boats, rovers): not used

GPS

Optional. On all platforms, required only for navigation modes: position hold, waypoints and return to home.

  • Multirotor drones: required for navigation modes: waypoints, position hold and return to home
  • Fixed-wing airplanes: required for navigation modes: waypoints, position hold and return to home
  • Other (boats, rovers): required for navigation modes: waypoints and return to home

OpFlow sensor

Optional, used only on multirotor drones for indoor position hold when GPS sensor might not get a fix.

  • Multirotor drones: optional
  • Fixed-wing airplanes: not used
  • Other (boats, rovers): not used

Rangefinder

Optional for all platforms. Usage is mostly experimental.

Airspeed sensor

Optional. Used only on fixed-wing airplanes for informational purposes.

  • Multirotor drones: not used
  • Fixed-wing airplanes: optional
  • Other (boats, rovers): not used

4 thoughts to “All the INAV sensors: are they required or optional?”

  1. I’ve ordered my Matek Optical Flow Lidar from BG a coupla days ago. looking forward to experimenting with this on my quads. let us know if you move any further with this interesting sensor!
    Russ from Ocala, Florida, USA

  2. My quad’s FC doesn’t equipped with baro on board. If i plugged gps to the FC, it is possible to use RTH function?

Leave a Reply to Shazami Shaari Cancel reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.