MAVSDK.NET (nuget): MavSdk is a collection of libraries to interface with MAVLink systems such as drones, cameras or ground systems.  The libraries provides a simple API for managing one or more vehicles, providing programmatic access to vehicle information and telemetry, and control over missions, movement and other operations.  The libraries can be used onboard a drone on a companion computer or on the ground for a ground station or mobile device.
Keywords: mavsdk|mavlink|drone