<![CDATA[Aldo Grocery Store is a staple food retailer that still manually records inventory and lacks an integrated security system. This operational limitation leads to frequent recording errors, delays in restocking information, and vulnerabilities to theft. This research aims to develop a web-based inventory monitoring and security system integrated with an Arduino Uno microcontroller. The system utilizes ultrasonic sensors to monitor item availability on shelves based on distance, load cell sensors to track stock weight, along with Passive Infrared (PIR) sensors and an RFID module to detect unauthorized movement and verify access identification. Data collected from all sensors is processed by the Arduino Uno and transmitted to a server database via the ESP8266 WiFi module, presenting updates on a web interface in real time. Test results indicate that the system measures commodity weight via the load cell sensor with an accuracy of 95%, responds to security triggers with an average response time of less than 2 seconds, and reliably transmits data to the web server. This system facilitates store owners in managing inventory and enhances retail security management efficiently.]]>
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