Design and Development of a Countdown Timer System in the Passenger Pickup and Drop-off Area Based on Ultrasonic Sensor
Keywords:
dropoffzone, countdown timer, arduino unoAbstract
This study discusses the design and manufacture of a countdown timer system in the passenger shuttle area by applying ultrasonic sensors and Arduino Uno microcontroller devices. The system is designed to monitor vehicle stop times in the drop off area so that they do not exceed the specified time limit. Ultrasonic sensors are used to detect the vehicle's presence, while Arduino Uno processes data and controls the display of information through the LCD as well as activating the buzzer as a warning alarm. The LCD will display three main conditions: the condition of the empty area ("Drop Off Zone"), the countdown when the vehicle is detected, and the warning when time is out ("Your Time Is Up, Please Leave the Area"). If the vehicle exceeds the time limit, the buzzer will sound continuously until the vehicle leaves the area. The focus of the system is on the logic functions, displays, as well as warning alarms. The results show that the system can function automatically and responsively according to the designed scenario, thus improving efficiency and order in the passenger shuttle area
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Copyright (c) 2026 Naratama Galant Al Jihad, Muhammad Fatih Mufadhdhal, Rizal Aprianto (Author)
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