Update MAVSDK to v0.44.0

Author: julianoes

MAVSDK_SERVER_VERSION

@@ -1 +1 @@
-v0.41.0
+v0.44.0

examples/follow2.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+
+import asyncio
+
+from mavsdk import System
+from mavsdk.offboard import (PositionNedYaw, VelocityNedYaw, OffboardError)
+
+async def run():
+    drone = System()
+    await drone.connect(system_address="udp://:14540")
+
+    print("Waiting for drone to connect...")
+    async for state in drone.core.connection_state():
+        if state.is_connected:
+            print(f"Drone discovered with UUID: {state.uuid}")
+            break
+
+    print("-- Arming")
+    await drone.action.arm()
+
+    print("-- Setting initial setpoint")
+    await drone.offboard.set_position_ned(PositionNedYaw(0.0, 0.0, 0.0, 0.0))
+
+    print("-- Starting offboard")
+    try:
+        await drone.offboard.start()
+    except OffboardError as error:
+        print(f"Starting offboard mode failed with error code: {error._result.result}")
+        print("-- Disarming")
+        await drone.action.disarm()
+        return
+
+
+    async def print_z_velocity(drone):
+        async for odom in drone.telemetry.position_velocity_ned():
+            print(f"{odom.velocity.north_m_s} {odom.velocity.down_m_s}")
+
+    asyncio.ensure_future(print_z_velocity(drone))
+
+    print("-- Go 0m North, 0m East, -10m Down within local coordinate system")
+    #await drone.offboard.set_position_velocity_ned(PositionNedYaw(0.0, 0.0, -10.0, 0.0),VelocityNedYaw(0.0,0.0,-1.0,0.0))
+    await drone.offboard.set_position_ned(PositionNedYaw(0.0, 0.0, -10.0, 0.0))
+    await asyncio.sleep(10)
+
+    print("-- Go 10m North, 0m East, 0m Down within local coordinate system")
+    await drone.offboard.set_position_ned(PositionNedYaw(50.0, 0.0, -10.0, 0.0))
+    #await drone.offboard.set_position_velocity_ned(PositionNedYaw(50.0, 0.0, -10.0, 0.0),VelocityNedYaw(1.0,0.0,0.0,0.0))
+    await asyncio.sleep(20)
+
+    await drone.action.land()
+
+
+    print("-- Stopping offboard")
+    try:
+        await drone.offboard.stop()
+    except OffboardError as error:
+        print(f"Stopping offboard mode failed with error code: {error._result.result}")
+
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+    loop.run_until_complete(run())