# AirSim Simulation

[AirSim](https://microsoft.github.io/AirSim/) is a open-source, cross platform simulator for drones, built on *Unreal Engine*. It provides physically and visually realistic simulations of Pixhawk/PX4 using either Hardware-In-The-Loop (HITL) or Software-In-The-Loop (SITL).

@[youtube](https://youtu.be/-WfTr1-OBGQ)

## PX4 Setup

[PX4 Setup for AirSim](https://microsoft.github.io/AirSim/px4_setup/) describes how to use PX4 with AirSim using both [SITL](https://microsoft.github.io/AirSim/px4_sitl/) and [HITL](https://microsoft.github.io/AirSim/px4_setup/#setting-up-px4-hardware-in-loop).

## Videos

#### AirSim with PX4 on WSL 2

@[youtube](https://youtu.be/DiqgsWIOoW4)

:::note WSL 2 is not a supported [PX4 Windows development environment](https://px4.gitbook.io/px4-user-guide/development/advanced/dev_env_unsupported/dev_env_windows_cygwin), mainly because it is non-trivial to display simulator UIs running within WSL 2 in the normal Windows environment. This limitation does not apply for AirSim because its UI is run natively in Windows. :::

#### Microsoft AirSim: Applications to Research and Industry (PX4 Developer Summit Virtual 2020)

@[youtube](https://youtu.be/-YMiKaJYl44)

#### Autonomous Drone Inspections using AirSim and PX4 (PX4 Developer Summit Virtual 2020)

@[youtube](https://youtu.be/JDx0MPTlhrg)

## Further Information

* [AirSim Documentation](https://microsoft.github.io/AirSim/)
* [Using AirSim to Simulate Aircraft Inspection by Autonomous Drones](https://gaas.gitbook.io/guide/case-study/using-airsim-to-simulate-aircraft-inspection-by-autonomous-drones) (Case Study from Generalized Autonomy Aviation System (GAAS) project).


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