Skripsi
SISTEM MONITORING PERANGKAT IOT DENGAN PROTOKOL MQTT BERBASIS MIKROKOMPUTER
Device monitoring is an important part of IoT systems, especially for monitoring devices remotely. This study developed an IoT device monitoring system using the MQTT protocol based on a microcomputer. MQTT was chosen because it is lightweight and efficient with a publish-subscribe communication method. The Mosquitto broker is installed on a Raspberry Pi to manage communication between publishers and subscribers. Sensor data is sent through the broker to the Zabbix Server and will be forwarded as automatic notifications to Telegram if it exceeds the specified threshold. Testing was conducted in two scenarios: system testing and protocol performance testing. The results indicate that the system operates effectively. In long-term testing, throughput reached 656.77 bps with a packet loss of 1.24%, while in short-term testing, throughput was 637.66 bps with a packet loss of 0%. Both demonstrate excellent performance for these QoS parameters. However, the delay and jitter parameters showed high values, with a delay of 1.054855 and jitter of 1.054856 ms in the long-term test, and no significant difference in the short-term test, with a delay of 1.062689 and jitter of 1.062703 ms. This is a concern in real-time communication as it causes delays in data transmission. This system can be used effectively, but further development is needed to reduce delay and jitter. This system shows potential as a lightweight and reliable microcomputer-based IoT device monitoring solution.