I have improved the swarm flight system. The system updated Pixhawk hardware from Pixhawk 1 to Pixhawk 2.1. It is very stable and flexible. I think that the Pixhawk 2.1 is more robust.
It used RTK-GPS sensor for position estimation.
The video shows the new scenario with Korean song. For that, I used 30 drones which I have. Next step, I will make the more drones and show the new scenario.
Thanks in advance