Design of ATM Crime Monitoring System Based on MQTT Protocol Using SIM800L and Arduino Mega 2560
Banks as service providers have to behold to the security of ATM in various regions since CCTV and the existing security officers unable to overcome the problem of ATM damage or burglary maximally. ATM crime monitoring system was created to solve this problem by sending alarms and notifications in real time. The main focus of this paper is to define the data transmission on ATM crime monitoring system using MQTT. MQTT is used on the system as a protocol for sending data from the Arduino Mega 2560 microcontroller and SIM800L devices to the server. All data from various sensor will be sent in JSON format and Quality of Service (QoS) used in MQTT is level 0. Data transmission using MQTT may filter normal conditions and alert conditions on ATM, data sent using 2 topics in order that the data can be used to send notifications and alarms in real time. In this research, SIM800L circuit configuration, SIM800L programming and MQTT protocol on Arduino IDE, and data transmission testing were carried out. The results of the research are that data transmission is successfully sent in real time and the filtered data is successfully divided into 2 conditions, namely under normal conditions and alert conditions. Further development can be done by replacing QoS with level 1 for the security of the data.