Smart Sensor Network for Environment Parameter Monitoring using IoT

This study presents an Internet of Things (IoT) based approach to monitor sound level and air quality at various locations. The proposed system employs a NodeMCU with an integrated Wi-Fi module and requisite sensors to track the sound level and air quality index (AQI) at specific sites. The system is capable of measuring variables such as humidity and temperature, in addition to the AQI and sound level, at the site. LM393 sound sensor is utilized for sound detection, DHT-11 sensor module for temperature and humidity monitoring, and MQ-135 gas sensor for air quality measurement. ThingSpeak's cloud platform and cloud technology are employed to store the collected data. The user is promptly notified via SMS when the air quality and sound level exceed a predetermined threshold. Furthermore, the end user is kept informed of environmental factors such as temperature and humidity to enable appropriate action.