Development of a data storage and temperature alarm system for the vaccine cabinet

Abstract

This work develops a system for storing and notifying vaccine cabinet temperature data using the Internet of Things (IoT) and evaluates the effectiveness of the proposed system. The system contains two main components: hardware and software. The hardware uses a NodeMCU microcontroller to manage the alarm system. In terms of software, we use Visual Studio Code to write commands and use the XAMPP program to host a web server. The web server runs on PHP, JavaScript, and a MySQL database. The effectiveness evaluation showed that the system is user-friendly with an average score of 4.92/5. The development of the vaccine cabinet temperature data storage and notification system with Arduino via web browser started from studying the working of the original system of the vaccine cabinet and researching theories. Experts were interviewed, and principles from related documents and research of similar nature were also studied to gather information from various sources. These were used as a guideline for the development to make it easy for users to operate the application, which can control and transmit data through a web browser. The vaccine cabinet’s temperature data are recorded in the database every 30 seconds, which is displayed in real-time on the screen that users can easily access. When the temperature of the vaccine cabinet is abnormal, the system can alert users via sound in a timely manner.