Perancangan dan Implementasi Sistem Monitoring Suhu Ruang Server Berbasis IoT Menggunakan ESP32 dan Sensor DHT22

Putra, Muhammad Reihan Daffa
Kusuma, Rizky Ade
Trisaptono, Raymondus
Widiyanto, Eka Puji

MDP Student Conference
Vol 5 No 2 (2026): The 5th MDP Student Conference 2026

This study aims to design and implement an Internet of Things (IoT)-based server room temperature monitoring system capable of real-time monitoring, critical temperature notification, and automatic historical data logging. An experimental method was employed by implementing a system using an ESP32 microcontroller, a DHT22 sensor, and IoT platforms including Blynk and Google Spreadsheet for data visualization and storage. System testing was conducted in a server room environment with an average sampling interval of approximately 8 minutes. The results show that the system successfully records and transmits temperature data with a data transmission success rate above 99%. The measured temperature ranged from 19.5 to 25 °C and did not exceed the predefined alarm threshold. These results indicate that the proposed system operates reliably and can effectively support continuous server room temperature monitoring.