Anyuca HB, Ismail AA. Swing Motion Obstacle Detection Warning System Design In a Swing Area Based on Arduino Uno Using Ultrasonic Sensors for Excavator. JTRAB [Internet]. 2024Aug.16 [cited 2024Nov.27];1(2):12-6. Available from: https://journal.ugm.ac.id/v3/jtrab/article/view/11917