Rancang Bangun Quadcopter dan Pendeteksian Rintangan Berbasis Algoritma Obstacle Avoidance ORB-SLAM3 dan Pendeteksian Bagian Tubuh Manusia Berbasis Algoritma YOLOv8 = Design and Development of a Quadcopter with Obstacle Avoidance using the ORB-SLAM3 Algorithm and Human Body Part Detection using the YOLOv8 Algorithm