Year: 2024 | Month: November | Volume: 11 | Issue: 11 | Pages: 314-320
DOI: https://doi.org/10.52403/ijrr.20241127
Arduino-Based Automatic School Bell System: A Simple and Cost-Effective Solution
Siddhartha Subedi1, Ajay Raj Chalise2
1Department of Computer Science, Shree Amarsingh Secondary School, Pokhara, Nepal.
2Department of Computer Science, School of Engineering, Pokhara University, Pokhara, Nepal.
Corresponding Author: Siddhartha Subedi
ABSTRACT
In schools, the bell plays a crucial role in maintaining the schedule. Ringing the bell manually is often ineffective due to issues with accuracy. Therefore, an automatic school bell system is needed to save the workforce and ensure precision. This project utilizes an Arduino UNO microcontroller to read the time from a Real-time clock (RTC DS3231) and display it on a 16 × 2 LCD display. At specific times, the Arduino activates a 5-volt relay for a predetermined duration to ring the electric bell. An alternative switch for the electric bell is included for use during examinations and emergencies. The bell is powered by direct AC and controlled by the relay module. The Arduino UNO is powered using a 5-volt output mobile charging adapter. Thus, the Arduino-based automatic school bell system is easy to design, develop, cost-effective, and operates at predefined times.
Keywords: Automatic School Bell System, Arduino UNO, Accuracy, DS3231, LCD, Relay.
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