ESP32-Based Temperature and Humidity Monitoring System with Data Logging Capabilities

This paper presents a low-cost, IoT-based temperature and humidity monitoring system using the ESP32 microcontroller and a DHT22 sensor. Designed for real-time environmental data collection, the system connects to Wi-Fi and displays live readings on a web server hosted by the ESP32. This eliminates the need for external cloud services, making the setup ideal for small-scale deployments in agriculture, industrial automation, and home automation. The system’s simplicity, efficiency, and remote accessibility make it a practical solution for continuous environmental monitoring.