Digital System and Computing

Yurimasanti Rachman, Deden Ardiansyah

Gate security systems in residential areas often rely on manual controls or simple remotes, which limit flexibility, real-time monitoring, and secure access. This study developed an IoT-based automated gate control system using RFID authentication and a web-based interface. The system integrated Arduino Uno, an ESP8266 Wi-Fi module, an RC522 RFID reader, a relay, and a DC motor to automate gate operation, while user activity was monitored through a local web server built on Apache and MySQL. Testing was conducted under controlled indoor conditions with an average Wi-Fi signal strength of -62 dBm, an ambient temperature of 27°C, and a local network latency of 8 to 12 ms. Across 50 trials using five different RFID cards, the system achieved 100 percent reading accuracy, an average response time of 1.42 seconds from tag detection to motor activation, and stable communication with no packet loss. Mechanical implementation using 8.25 kg of galvanized steel and a dual-rail support system ensured stable and smooth gate movement. These results confirm that the system provides secure, contactless, and remotely accessible automated gate control. Future improvements should focus on cloud-based integration and enhanced network stability for real-world deployment.