Versatile Monitoring and Display System Based on Hardware: Implementation and Results

This paper presents the development and implementation of a Versatile Monitoring and Display System (VMDS) that utilizes MQ-135 and DHT22 sensors for real-time monitoring of air quality, temperature, and humidity. The system is built around a microcontroller unit (MCU) and a display module to visualize the collected data. The hardware components, circuit connections, and real-time output results are discussed in detail. The results demonstrate the system’s capability to provide accurate environmental monitoring, making it suitable for smart homes, industrial safety, and environmental applications. Keywords: Monitoring system, hardware interface, real- time display, sensors, microcontroller, IoT integration